轻松快捷开发 MetaTrader 程序的函数库(第十八部分):帐户与任意其他函数库对象之间的交互

20 十一月 2019, 07:43
Artyom Trishkin
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内容

我们已经创建了基准对象,所有需要事件功能的其他函数库对象均自其继承而来。 现在,设置跟踪事件的参数,并从对象中接收参数变得更加容易 — 所有这些操作都在基类中完成,对于它的所有衍生对象,如果我们要跟踪对象属性,则需要执行相同的步骤来设置受监视的属性和值。

今天,我们将略微改进基准对象,并将帐户对象关联到基准对象。 我们还将以测试 EA 为例,测试设置跟踪对象属性及其数值的能力。
在上一篇文章中,当创建 CBaseObj 基准对象及其后代(品种对象)的方法时,我有些跑偏了,并在两个类中实现了一组实际上彼此重叠的方法。 我们来修复这个问题 — 只需从 CSymbol 衍生对象类中删除设置和接收属性的方法,然后分配给 CBaseObj 基准对象方法即可。

改善基准和品种对象

打开文件 \MQL5\Include\DoEasy\Objects\ BaseObj.mqh,并对其进行一些修改。

CheckEvents() 方法从 CSymbol 类转移至 CBaseObj基类,因为此方法对于基类的所有衍生对象都是完全相同的 ,这意味着基类是正确的位置。
我们将其定义添加到 CBaseObj 类的受保护部分:

protected:
   CArrayObj         m_list_events_base;                       // Object base event list
   CArrayObj         m_list_events;                            // Object event list
   MqlTick           m_tick;                                   // Tick structure for receiving quote data
   double            m_hash_sum;                               // Object data hash sum
   double            m_hash_sum_prev;                          // Object data hash sum during the previous check
   int               m_digits_currency;                        // Number of decimal places in an account currency
   int               m_global_error;                           // Global error code
   long              m_chart_id;                               // Control program chart ID
   bool              m_is_event;                               // Object event flag
   int               m_event_code;                             // Object event code
   int               m_event_id;                               // Event ID (equal to the object property value)
   string            m_name;                                   // Object name
   string            m_folder_name;                            // Name of the folder storing CBaseObj descendant objects 
   bool              m_first_start;                            // First launch flag
   int               m_type;                                   // Object type (corresponds to the collection IDs)

//--- Data for storing, controlling and returning tracked properties:
//--- [Property index][0] Controlled property increase value
//--- [Property index][1] Controlled property decrease value
//--- [Property index][2] Controlled property value level
//--- [Property index][3] Property value
//--- [Property index][4] Property value change
//--- [Property index][5] Flag of a property change exceeding the increase value
//--- [Property index][6] Flag of a property change exceeding the decrease value
//--- [Property index][7] Flag of a property increase exceeding the control level
//--- [Property index][8] Flag of a property decrease being less than the control level
//--- [Property index][9] Flag of a property value being equal to the control level
   long              m_long_prop_event[][CONTROLS_TOTAL];         // The array for storing object's integer properties values and controlled property change values
   double            m_double_prop_event[][CONTROLS_TOTAL];       // The array for storing object's real properties values and controlled property change values
   long              m_long_prop_event_prev[][CONTROLS_TOTAL];    // The array for storing object's controlled integer properties values during the previous check
   double            m_double_prop_event_prev[][CONTROLS_TOTAL];  // The array for storing object's controlled real properties values during the previous check

//--- Return (1) time in milliseconds, (2) milliseconds from the MqlTick time value
   long              TickTime(void)                            const { return #ifdef __MQL5__ this.m_tick.time_msc #else this.m_tick.time*1000 #endif ;  }
   ushort            MSCfromTime(const long time_msc)          const { return #ifdef __MQL5__ ushort(this.TickTime()%1000) #else 0 #endif ;              }
//--- return the flag of the event code presence in the event object
   bool              IsPresentEventFlag(const int change_code) const { return (this.m_event_code & change_code)==change_code; }
//--- Return the number of decimal places of the account currency
   int               DigitsCurrency(void)                      const { return this.m_digits_currency; }
//--- Returns the number of decimal places in the 'double' value
   int               GetDigits(const double value)             const;

//--- Set the size of the array of controlled (1) integer and (2) real object properties
   bool              SetControlDataArraySizeLong(const int size);
   bool              SetControlDataArraySizeDouble(const int size);
//--- Check the array size of object properties
   bool              CheckControlDataArraySize(bool check_long=true);
   
//--- Check the list of symbol property changes and create an event
   void              CheckEvents(void);
   
//--- (1) Pack a 'ushort' number to a passed 'long' number
//--- (2) convert a 'ushort' value to a specified 'long' number byte
   long              UshortToLong(const ushort ushort_value,const uchar to_byte,long &long_value);
   
protected:
   long              UshortToByte(const ushort value,const uchar index) const;
   
public:


从公开部分中,删除为事件标志设置数值的方法 — 事件的发生与我们的裁断无关,并且标志的设置无需用户干预。 所以,我确信,强制设置事件标志值的方法是合理的:

//--- Set the flag of a property change exceeding the (1) increase and (2) decrease values
   template<typename T> void  SetControlledFlagINC(const int property,const T value); 
   template<typename T> void  SetControlledFlagDEC(const int property,const T value); 
//--- Set the flag of a property change (1) exceeding, (2) being less than the control level, (3) being equal to the level
   template<typename T> void  SetControlledFlagMORE(const int property,const T value);
   template<typename T> void  SetControlledFlagLESS(const int property,const T value);
   template<typename T> void  SetControlledFlagEQUAL(const int property,const T value);


现在,返回用户设置的受控对象属性值的方法,返回当前对象属性值和对象属性变化值的方法,将更具可读性,名称也更有意义:

//--- Return the set value of the controlled (1) integer and (2) real object properties increase
   long              GetControlledLongValueINC(const int property)         const { return this.m_long_prop_event[property][0];                           }
   double            GetControlledDoubleValueINC(const int property)       const { return this.m_double_prop_event[property-this.m_long_prop_total][0];  }
//--- Return the set value of the controlled (1) integer and (2) real object properties decrease
   long              GetControlledLongValueDEC(const int property)         const { return this.m_long_prop_event[property][1];                           }
   double            GetControlledDoubleValueDEC(const int property)       const { return this.m_double_prop_event[property-this.m_long_prop_total][1];  }
//--- Return the specified control level of object's (1) integer and (2) real properties
   long              GetControlledLongValueLEVEL(const int property)       const { return this.m_long_prop_event[property][2];                           }
   double            GetControlledDoubleValueLEVEL(const int property)     const { return this.m_double_prop_event[property-this.m_long_prop_total][2];  }

//--- Return the current value of the object (1) integer and (2) real property
   long              GetPropLongValue(const int property)            const { return this.m_long_prop_event[property][3];                           }
   double            GetPropDoubleValue(const int property)          const { return this.m_double_prop_event[property-this.m_long_prop_total][3];  }
//--- Return the change value of the controlled (1) integer and (2) real object property
   long              GetPropLongChangedValue(const int property)     const { return this.m_long_prop_event[property][4];                           }
   double            GetPropDoubleChangedValue(const int property)   const { return this.m_double_prop_event[property-this.m_long_prop_total][4];  }

//--- Return the flag of an (1) integer and (2) real property value change exceeding the increase value
   long              GetPropLongFlagINC(const int property)          const { return this.m_long_prop_event[property][5];                           }
   double            GetPropDoubleFlagINC(const int property)        const { return this.m_double_prop_event[property-this.m_long_prop_total][5];  }
//--- Return the flag of an (1) integer and (2) real property value change exceeding the decrease value
   long              GetPropLongFlagDEC(const int property)          const { return this.m_long_prop_event[property][6];                           }
   double            GetPropDoubleFlagDEC(const int property)        const { return this.m_double_prop_event[property-this.m_long_prop_total][6];  }
//--- Return the flag of an (1) integer and (2) real property value increase exceeding the control level
   long              GetPropLongFlagMORE(const int property)         const { return this.m_long_prop_event[property][7];                           }
   double            GetPropDoubleFlagMORE(const int property)       const { return this.m_double_prop_event[property-this.m_long_prop_total][7];  }
//--- Return the flag of an (1) integer and (2) real property value decrease being less than the control level
   long              GetPropLongFlagLESS(const int property)         const { return this.m_long_prop_event[property][8];                           }
   double            GetPropDoubleFlagLESS(const int property)       const { return this.m_double_prop_event[property-this.m_long_prop_total][8];  }
//--- Return the flag of an (1) integer and (2) real property being equal to the control level
   long              GetPropLongFlagEQUAL(const int property)        const { return this.m_long_prop_event[property][9];                           }
   double            GetPropDoubleFlagEQUAL(const int property)      const { return this.m_double_prop_event[property-this.m_long_prop_total][9];  }


在对 CBaseObj 基准对象事件功能进行深入测试时,检测到事件定义错误。 填充基准对象属性并搜索 FillPropertySettings() 事件的方法功能不准确 — 在该方法的末尾,无论任何情况,当前属性状态都被写至之前状态。 由于新接收到的属性值被立即写到之前属性值,如此则无法判断属性变化。 在受控变化值较小的情况下,此错误不会发生,因为该属性的管制变化额度超过了为生成事件而指定的一次性触发数值。
但若要在一次或多次即时报价里跟踪发生的重大变化时,就不可能了。
此问题已被修复仅在注册事件时,当前状态才会写入之前状态

//+------------------------------------------------------------------+
//| Fill in the object property array                                |
//+------------------------------------------------------------------+
template<typename T> bool CBaseObj::FillPropertySettings(const int index,T &array[][CONTROLS_TOTAL],T &array_prev[][CONTROLS_TOTAL],int &event_id)
  {
   //--- Data in the array cells
   //--- [Property index][0] Controlled property increase value
   //--- [Property index][1] Controlled property decrease value
   //--- [Property index][2] Controlled property value level
   //--- [Property index][3] Property value
   //--- [Property index][4] Property value change
   //--- [Property index][5] Flag of a property change exceeding the increase value
   //--- [Property index][6] Flag of a property change exceeding the decrease value
   //--- [Property index][7] Flag of a property increase exceeding the control level
   //--- [Property index][8] Flag of a property decrease being less than the control level
   //--- [Property index][9] Flag of a property value being equal to the control level
  
   //--- Set the shift of the 'double' property index and the event ID
   event_id=index+(typename(T)=="double" ? this.m_long_prop_total : 0);
   //--- Reset all event flags
   for(int j=5;j<CONTROLS_TOTAL;j++)
      array[index][j]=false;
   //--- Property change value
   T value=array[index][3]-array_prev[index][3];
   array[index][4]=value;
   //--- If the controlled property increase value is set
   if(array[index][0]<LONG_MAX)
     {
      //--- If the property change value exceeds the controlled increase value - there is an event,
      //--- add the event to the list, set the flag and save the new property value size
      if(value>0 && value>array[index][0])
        {
         if(this.EventBaseAdd(event_id,BASE_EVENT_REASON_INC,value))
           {
            array[index][5]=true;
            array_prev[index][4]=value;
           }
         //--- Save the current property value as a previous one
         array_prev[index][3]=array[index][3];
        }
     }
   //--- If the controlled property decrease value is set
   if(array[index][1]<LONG_MAX)
     {
      //--- If the property change value exceeds the controlled decrease value - there is an event,
      //--- add the event to the list, set the flag and save the new property value size
      if(value<0 && fabs(value)>array[index][1])
        {
         if(this.EventBaseAdd(event_id,BASE_EVENT_REASON_DEC,value))
           {
            array[index][6]=true;
            array_prev[index][4]=value;
           }
         //--- Save the current property value as a previous one
         array_prev[index][3]=array[index][3];
        }
     }
   //--- If the controlled level value is set
   if(array[index][2]<LONG_MAX)
     {
      value=array[index][3]-array[index][2];
      //--- If a property value exceeds the control level, there is an event
      //--- add the event to the list and set the flag
      if(value>0 && array_prev[index][3]<=array[index][2])
        {
         if(this.EventBaseAdd(event_id,BASE_EVENT_REASON_MORE_THEN,array[index][2]))
            array[index][7]=true;
         //--- Save the current property value as a previous one
         array_prev[index][3]=array[index][3];
        }
      //--- If a property value is less than the control level, there is an event,
      //--- add the event to the list and set the flag
      else if(value<0 && array_prev[index][3]>=array[index][2])
        {
         if(this.EventBaseAdd(event_id,BASE_EVENT_REASON_LESS_THEN,array[index][2]))
            array[index][8]=true;
         //--- Save the current property value as a previous one
         array_prev[index][3]=array[index][3];
        }
      //--- If a property value is equal to the control level, there is an event,
      //--- add the event to the list and set the flag
      else if(value==0 && array_prev[index][3]!=array[index][2])
        {
         if(this.EventBaseAdd(event_id,BASE_EVENT_REASON_EQUALS,array[index][2]))
            array[index][9]=true;
         //--- Save the current property value as a previous one
         array_prev[index][3]=array[index][3];
        }
     }
   return true;
  }
//+------------------------------------------------------------------+


以前,属性是利用基准对象属性初始化方法中的 LONG_MAX 值初始化的,现在它们将用零值初始化:

//+------------------------------------------------------------------+
//| Reset the variables of tracked object data                       |
//+------------------------------------------------------------------+
void CBaseObj::ResetChangesParams(void)
  {
   if(!this.CheckControlDataArraySize(true) || !this.CheckControlDataArraySize(false))
      return;
   this.m_list_events.Clear();
   this.m_list_events.Sort();
   this.m_list_events_base.Clear();
   this.m_list_events_base.Sort();
//--- Data in the array cells
//--- [Property index][3] Property value
//--- [Property index][4] Property value change
//--- [Property index][5] Flag of a property change exceeding the increase value
//--- [Property index][6] Flag of a property change exceeding the decrease value
//--- [Property index][7] Flag of a property increase exceeding the control level
//--- [Property index][8] Flag of a property decrease being less than the control level
//--- [Property index][9] Flag of a property value being equal to the controlled value
   for(int i=this.m_long_prop_total-1;i>WRONG_VALUE;i--)
      for(int j=3; j<CONTROLS_TOTAL; j++)
         this.m_long_prop_event[i][j]=0;
   for(int i=this.m_double_prop_total-1;i>WRONG_VALUE;i--)
      for(int j=3; j<CONTROLS_TOTAL; j++)
         this.m_double_prop_event[i][j]=0;
  }
//+------------------------------------------------------------------+


添加从 CSymbol 转移的 CheckEvents() 方法的实现:

//+------------------------------------------------------------------+
//| Check the list of object property changes and create an event    |
//+------------------------------------------------------------------+
void CBaseObj::CheckEvents(void)
  {
   int total=this.m_list_events_base.Total();
   if(total==0)
      return;
   
   for(int i=0;i<total;i++)
     {
      CBaseEvent *event=this.GetEventBase(i);
      if(event==NULL)
         continue;
      long lvalue=0;
      this.UshortToLong(this.MSCfromTime(this.TickTime()),0,lvalue);
      this.UshortToLong(event.Reason(),1,lvalue);
      this.UshortToLong((ushort)this.m_type,2,lvalue);
      if(this.EventAdd((ushort)event.ID(),lvalue,event.Value(),this.m_name))
         this.m_is_event=true;
     }
  }  
//+------------------------------------------------------------------+


在 CSymbol 品种对象类中进行调整。
打开 \MQL5\Include\DoEasy\Objects\Symbols\Symbol.mqh 文件,并进行修改。

从类的私密部分中删除两个方法:

private:
   struct MqlMarginRate
     {
      double         Initial;                                  // initial margin rate
      double         Maintenance;                              // maintenance margin rate
     };
   struct MqlMarginRateMode
     {
      MqlMarginRate  Long;                                     // MarginRate of long positions
      MqlMarginRate  Short;                                    // MarginRate of short positions
      MqlMarginRate  BuyStop;                                  // MarginRate of BuyStop orders
      MqlMarginRate  BuyLimit;                                 // MarginRate of BuyLimit orders
      MqlMarginRate  BuyStopLimit;                             // MarginRate of BuyStopLimit orders
      MqlMarginRate  SellStop;                                 // MarginRate of SellStop orders
      MqlMarginRate  SellLimit;                                // MarginRate of SellLimit orders
      MqlMarginRate  SellStopLimit;                            // MarginRate of SellStopLimit orders
     };
   MqlMarginRateMode m_margin_rate;                            // Margin ratio structure
   MqlBookInfo       m_book_info_array[];                      // Array of the market depth data structures

   long              m_long_prop[SYMBOL_PROP_INTEGER_TOTAL];   // Integer properties
   double            m_double_prop[SYMBOL_PROP_DOUBLE_TOTAL];  // Real properties
   string            m_string_prop[SYMBOL_PROP_STRING_TOTAL];  // String properties
   bool              m_is_change_trade_mode;                   // Flag of changing trading mode for a symbol

//--- Initialize the variables of controlled symbol data
   virtual void      InitControlsParams(void);
//--- Check the list of symbol property changes and create an event
   void              CheckEvents(void);


受控数据初始化方法不再需要,因为若需跟踪任何类的任意属性和参数,都可通过显式指定跟踪参数值来执行。 默认情况下,不跟踪任何衍生对象属性的变化。 我们已经将 CheckEvents() 方法 从此处移至 CBaseObj 基类。

在类的公开部分,删除实际上与基准对象重叠的方法

public:
//--- Set the change value of the controlled symbol property
   template<typename T> void  SetControlChangedValue(const int property,const T value);
//--- Set the value of the controlled symbol property (1) increase, (2) decrease and (3) control level
   template<typename T> void  SetControlPropertyINC(const int property,const T value);
   template<typename T> void  SetControlPropertyDEC(const int property,const T value);
   template<typename T> void  SetControlPropertyLEVEL(const int property,const T value);
//--- Set the flag of a symbol property change exceeding the (1) increase and (2) decrease values
   template<typename T> void  SetControlFlagINC(const int property,const T value);
   template<typename T> void  SetControlFlagDEC(const int property,const T value);
   
//--- Return the set value of the (1) integer and (2) real symbol property controlled increase
   long              GetControlParameterINC(const ENUM_SYMBOL_PROP_INTEGER property)   const { return this.GetControlledValueLongINC(property);             }
   double            GetControlParameterINC(const ENUM_SYMBOL_PROP_DOUBLE property)    const { return this.GetControlledValueDoubleINC(property);           }
//--- Return the set value of the (1) integer and (2) real symbol property controlled decrease
   long              GetControlParameterDEC(const ENUM_SYMBOL_PROP_INTEGER property)   const { return this.GetControlledValueLongDEC(property);             }
   double            GetControlParameterDEC(const ENUM_SYMBOL_PROP_DOUBLE property)    const { return this.GetControlledValueDoubleDEC(property);           }
//--- Return the flag of an (1) integer and (2) real symbol property value change exceeding the increase value
   long              GetControlFlagINC(const ENUM_SYMBOL_PROP_INTEGER property)        const { return this.GetControlledFlagLongINC(property);              }
   double            GetControlFlagINC(const ENUM_SYMBOL_PROP_DOUBLE property)         const { return this.GetControlledFlagDoubleINC(property);            }
//--- Return the flag of an (1) integer and (2) real symbol property value change exceeding the decrease value
   bool              GetControlFlagDEC(const ENUM_SYMBOL_PROP_INTEGER property)        const { return (bool)this.GetControlledFlagLongDEC(property);        }
   bool              GetControlFlagDEC(const ENUM_SYMBOL_PROP_DOUBLE property)         const { return (bool)this.GetControlledFlagDoubleDEC(property);      }
//--- Return the change value of the controlled (1) integer and (2) real object property
   long              GetControlChangedValue(const ENUM_SYMBOL_PROP_INTEGER property)   const { return this.GetControlledChangedValueLong(property);         }
   double            GetControlChangedValue(const ENUM_SYMBOL_PROP_DOUBLE property)    const { return this.GetControlledChangedValueDouble(property);       }


现在,接收和设置跟踪品种属性参数的方法直接从基类方法得到返回值。 以下是方法清单:

//+------------------------------------------------------------------+
//| Get and set the parameters of tracked property changes           |
//+------------------------------------------------------------------+
   //--- Execution
   //--- Flag of changing the trading mode for a symbol
   bool              IsChangedTradeMode(void)                              const { return this.m_is_change_trade_mode;                                      } 
   //--- Current session deals
   //--- setting the controlled value of (1) growth, (2) decrease and (3) control level of the number of deals during the current session
   //--- getting (3) the number of deals change value during the current session,
   //--- getting the flag of the number of deals change during the current session exceeding the (4) increase, (5) decrease value
   void              SetControlSessionDealsInc(const long value)                 { this.SetControlledValueINC(SYMBOL_PROP_SESSION_DEALS,(long)::fabs(value));        }
   void              SetControlSessionDealsDec(const long value)                 { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_DEALS,(long)::fabs(value));        }
   void              SetControlSessionDealsLevel(const long value)               { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_DEALS,(long)::fabs(value));      }
   long              GetValueChangedSessionDeals(void)                     const { return this.GetPropLongChangedValue(SYMBOL_PROP_SESSION_DEALS);                   }
   bool              IsIncreasedSessionDeals(void)                         const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_SESSION_DEALS);                  }
   bool              IsDecreasedSessionDeals(void)                         const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_SESSION_DEALS);                  }
   //--- Buy orders of the current session
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the current number of Buy orders
   //--- getting (4) the current number of Buy orders change value,
   //--- getting the flag of the current Buy orders' number change exceeding the (5) increase, (6) decrease value
   void              SetControlSessionBuyOrdInc(const long value)                { this.SetControlledValueINC(SYMBOL_PROP_SESSION_BUY_ORDERS,(long)::fabs(value));   }
   void              SetControlSessionBuyOrdDec(const long value)                { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_BUY_ORDERS,(long)::fabs(value));   }
   void              SetControlSessionBuyOrdLevel(const long value)              { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_BUY_ORDERS,(long)::fabs(value)); }
   long              GetValueChangedSessionBuyOrders(void)                 const { return this.GetPropLongChangedValue(SYMBOL_PROP_SESSION_BUY_ORDERS);              }
   bool              IsIncreasedSessionBuyOrders(void)                     const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_SESSION_BUY_ORDERS);             }
   bool              IsDecreasedSessionBuyOrders(void)                     const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_SESSION_BUY_ORDERS);             }
   //--- Sell orders of the current session
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the current number of Sell orders
   //--- getting (4) the current number of Sell orders change value,
   //--- getting the flag of the current Sell orders' number change exceeding the (5) increase, (6) decrease value
   void              SetControlSessionSellOrdInc(const long value)               { this.SetControlledValueINC(SYMBOL_PROP_SESSION_SELL_ORDERS,(long)::fabs(value));  }
   void              SetControlSessionSellOrdDec(const long value)               { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_SELL_ORDERS,(long)::fabs(value));  }
   void              SetControlSessionSellOrdLevel(const long value)             { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_SELL_ORDERS,(long)::fabs(value));}
   long              GetValueChangedSessionSellOrders(void)                const { return this.GetPropLongChangedValue(SYMBOL_PROP_SESSION_SELL_ORDERS);             }
   bool              IsIncreasedSessionSellOrders(void)                    const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_SESSION_SELL_ORDERS);            }
   bool              IsDecreasedSessionSellOrders(void)                    const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_SESSION_SELL_ORDERS);            }
   //--- Volume of the last deal
   //--- setting the last deal volume controlled (1) increase, (2) decrease and (3) control level
   //--- getting (4) volume change values in the last deal,
   //--- getting the flag of the volume change in the last deal exceeding the (5) increase, (6) decrease value
   void              SetControlVolumeInc(const long value)                       { this.SetControlledValueINC(SYMBOL_PROP_VOLUME,(long)::fabs(value));               }
   void              SetControlVolumeDec(const long value)                       { this.SetControlledValueDEC(SYMBOL_PROP_VOLUME,(long)::fabs(value));               }
   void              SetControlVolumeLevel(const long value)                     { this.SetControlledValueLEVEL(SYMBOL_PROP_VOLUME,(long)::fabs(value));             }
   long              GetValueChangedVolume(void)                           const { return this.GetPropLongChangedValue(SYMBOL_PROP_VOLUME);                          }
   bool              IsIncreasedVolume(void)                               const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_VOLUME);                         }
   bool              IsDecreasedVolume(void)                               const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_VOLUME);                         }
   //--- Maximum volume within a day
   //--- setting the maximum day volume controlled (1) increase, (2) decrease and (3) control level
   //--- getting (4) the maximum volume change value within a day,
   //--- getting the flag of the maximum day volume change exceeding the (5) increase, (6) decrease value
   void              SetControlVolumeHighInc(const long value)                   { this.SetControlledValueINC(SYMBOL_PROP_VOLUMEHIGH,(long)::fabs(value));           }
   void              SetControlVolumeHighDec(const long value)                   { this.SetControlledValueDEC(SYMBOL_PROP_VOLUMEHIGH,(long)::fabs(value));           }
   void              SetControlVolumeHighLevel(const long value)                 { this.SetControlledValueLEVEL(SYMBOL_PROP_VOLUMEHIGH,(long)::fabs(value));         }
   long              GetValueChangedVolumeHigh(void)                       const { return this.GetPropLongChangedValue(SYMBOL_PROP_VOLUMEHIGH);                      }
   bool              IsIncreasedVolumeHigh(void)                           const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_VOLUMEHIGH);                     }
   bool              IsDecreasedVolumeHigh(void)                           const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_VOLUMEHIGH);                     }
   //--- Minimum volume within a day
   //--- setting the minimum day volume controlled (1) increase, (2) decrease and (3) control level
   //--- getting (4) the minimum volume change value within a day,
   //--- getting the flag of the minimum day volume change exceeding the (5) increase, (6) decrease value
   void              SetControlVolumeLowInc(const long value)                    { this.SetControlledValueINC(SYMBOL_PROP_VOLUMELOW,(long)::fabs(value));            }
   void              SetControlVolumeLowDec(const long value)                    { this.SetControlledValueDEC(SYMBOL_PROP_VOLUMELOW,(long)::fabs(value));            }
   void              SetControlVolumeLowLevel(const long value)                  { this.SetControlledValueLEVEL(SYMBOL_PROP_VOLUMELOW,(long)::fabs(value));          }
   long              GetValueChangedVolumeLow(void)                        const { return this.GetPropLongChangedValue(SYMBOL_PROP_VOLUMELOW);                       }
   bool              IsIncreasedVolumeLow(void)                            const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_VOLUMELOW);                      }
   bool              IsDecreasedVolumeLow(void)                            const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_VOLUMELOW);                      }
   //--- Spread
   //--- setting the controlled spread (1) increase, (2) decrease value and (3) control level in points
   //--- getting (4) spread change value in points,
   //--- getting the flag of the spread change in points exceeding the (5) increase, (6) decrease value
   void              SetControlSpreadInc(const int value)                        { this.SetControlledValueINC(SYMBOL_PROP_SPREAD,(long)::fabs(value));               }
   void              SetControlSpreadDec(const int value)                        { this.SetControlledValueDEC(SYMBOL_PROP_SPREAD,(long)::fabs(value));               }
   void              SetControlSpreadLevel(const int value)                      { this.SetControlledValueLEVEL(SYMBOL_PROP_SPREAD,(long)::fabs(value));             }
   int               GetValueChangedSpread(void)                           const { return (int)this.GetPropLongChangedValue(SYMBOL_PROP_SPREAD);                     }
   bool              IsIncreasedSpread(void)                               const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_SPREAD);                         }
   bool              IsDecreasedSpread(void)                               const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_SPREAD);                         }
   //--- StopLevel
   //--- setting the controlled StopLevel (1) increase, (2) decrease value and (3) control level in points
   //--- getting (4) StopLevel change value in points,
   //--- getting the flag of StopLevel change in points exceeding the (5) increase, (6) decrease value
   void              SetControlStopLevelInc(const int value)                     { this.SetControlledValueINC(SYMBOL_PROP_TRADE_STOPS_LEVEL,(long)::fabs(value));    }
   void              SetControlStopLevelDec(const int value)                     { this.SetControlledValueDEC(SYMBOL_PROP_TRADE_STOPS_LEVEL,(long)::fabs(value));    }
   void              SetControlStopLevelLevel(const int value)                   { this.SetControlledValueLEVEL(SYMBOL_PROP_TRADE_STOPS_LEVEL,(long)::fabs(value));  }
   int               GetValueChangedStopLevel(void)                        const { return (int)this.GetPropLongChangedValue(SYMBOL_PROP_TRADE_STOPS_LEVEL);          }
   bool              IsIncreasedStopLevel(void)                            const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_TRADE_STOPS_LEVEL);              }
   bool              IsDecreasedStopLevel(void)                            const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_TRADE_STOPS_LEVEL);              }
   //--- Freeze distance
   //--- setting the controlled FreezeLevel (1) increase, (2) decrease value and (3) control level in points
   //--- getting (4) FreezeLevel change value in points,
   //--- getting the flag of FreezeLevel change in points exceeding the (5) increase, (6) decrease value
   void              SetControlFreezeLevelInc(const int value)                   { this.SetControlledValueINC(SYMBOL_PROP_TRADE_FREEZE_LEVEL,(long)::fabs(value));   }
   void              SetControlFreezeLevelDec(const int value)                   { this.SetControlledValueDEC(SYMBOL_PROP_TRADE_FREEZE_LEVEL,(long)::fabs(value));   }
   void              SetControlFreezeLevelLevel(const int value)                 { this.SetControlledValueLEVEL(SYMBOL_PROP_TRADE_FREEZE_LEVEL,(long)::fabs(value)); }
   int               GetValueChangedFreezeLevel(void)                      const { return (int)this.GetPropLongChangedValue(SYMBOL_PROP_TRADE_FREEZE_LEVEL);         }
   bool              IsIncreasedFreezeLevel(void)                          const { return (bool)this.GetPropLongFlagINC(SYMBOL_PROP_TRADE_FREEZE_LEVEL);             }
   bool              IsDecreasedFreezeLevel(void)                          const { return (bool)this.GetPropLongFlagDEC(SYMBOL_PROP_TRADE_FREEZE_LEVEL);             }
   
   //--- Bid
   //--- setting the controlled Bid price (1) increase, (2) decrease value and (3) control level in points
   //--- getting (4) Bid or Last price change value,
   //--- getting the flag of the Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlBidInc(const double value)                        { this.SetControlledValueINC(SYMBOL_PROP_BID,::fabs(value));                        }
   void              SetControlBidDec(const double value)                        { this.SetControlledValueDEC(SYMBOL_PROP_BID,::fabs(value));                        }
   void              SetControlBidLevel(const double value)                      { this.SetControlledValueLEVEL(SYMBOL_PROP_BID,::fabs(value));                      }
   double            GetValueChangedBid(void)                              const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_BID);                           }
   bool              IsIncreasedBid(void)                                  const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_BID);                          }
   bool              IsDecreasedBid(void)                                  const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_BID);                          }
   //--- The highest Bid price of the day
   //--- setting the controlled maximum Bid price (1) increase, (2) decrease value and (3) control level in points
   //--- getting the (4) maximum Bid or Last price change value,
   //--- getting the flag of the maximum Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlBidHighInc(const double value)                    { this.SetControlledValueINC(SYMBOL_PROP_BIDHIGH,::fabs(value));                    }
   void              SetControlBidHighDec(const double value)                    { this.SetControlledValueDEC(SYMBOL_PROP_BIDHIGH,::fabs(value));                    }
   void              SetControlBidHighLevel(const double value)                  { this.SetControlledValueLEVEL(SYMBOL_PROP_BIDHIGH,::fabs(value));                  }
   double            GetValueChangedBidHigh(void)                          const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_BIDHIGH);                       }
   bool              IsIncreasedBidHigh(void)                              const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_BIDHIGH);                      }
   bool              IsDecreasedBidHigh(void)                              const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_BIDHIGH);                      }
   //--- The lowest Bid price of the day
   //--- setting the controlled minimum Bid price (1) increase, (2) decrease value and (3) control level in points
   //--- getting the (4) minimum Bid or Last price change value,
   //--- getting the flag of the minimum Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlBidLowInc(const double value)                     { this.SetControlledValueINC(SYMBOL_PROP_BIDLOW,::fabs(value));                     }
   void              SetControlBidLowDec(const double value)                     { this.SetControlledValueDEC(SYMBOL_PROP_BIDLOW,::fabs(value));                     }
   void              SetControlBidLowLevel(const double value)                   { this.SetControlledValueLEVEL(SYMBOL_PROP_BIDLOW,::fabs(value));                   }
   double            GetValueChangedBidLow(void)                           const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_BIDLOW);                        }
   bool              IsIncreasedBidLow(void)                               const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_BIDLOW);                       }
   bool              IsDecreasedBidLow(void)                               const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_BIDLOW);                       }
   
   //--- Last
   //--- setting the controlled Last price (1) increase, (2) decrease value and (3) control level in points
   //--- getting (4) Bid or Last price change value,
   //--- getting the flag of the Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlLastInc(const double value)                       { this.SetControlledValueINC(SYMBOL_PROP_LAST,::fabs(value));                       }
   void              SetControlLastDec(const double value)                       { this.SetControlledValueDEC(SYMBOL_PROP_LAST,::fabs(value));                       }
   void              SetControlLastLevel(const double value)                     { this.SetControlledValueLEVEL(SYMBOL_PROP_LAST,::fabs(value));                     }
   double            GetValueChangedLast(void)                             const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_LAST);                          }
   bool              IsIncreasedLast(void)                                 const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_LAST);                         }
   bool              IsDecreasedLast(void)                                 const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_LAST);                         }
   //--- The highest Last price of the day
   //--- setting the controlled maximum Last price (1) increase, (2) decrease value and (3) control level in points
   //--- getting the (4) maximum Bid or Last price change value,
   //--- getting the flag of the maximum Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlLastHighInc(const double value)                   { this.SetControlledValueINC(SYMBOL_PROP_LASTHIGH,::fabs(value));                   }
   void              SetControlLastHighDec(const double value)                   { this.SetControlledValueDEC(SYMBOL_PROP_LASTHIGH,::fabs(value));                   }
   void              SetControlLastHighLevel(const double value)                 { this.SetControlledValueLEVEL(SYMBOL_PROP_LASTHIGH,::fabs(value));                 }
   double            GetValueChangedLastHigh(void)                         const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_LASTHIGH);                      }
   bool              IsIncreasedLastHigh(void)                             const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_LASTHIGH);                     }
   bool              IsDecreasedLastHigh(void)                             const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_LASTHIGH);                     }
   //--- The lowest Last price of the day
   //--- setting the controlled minimum Last price (1) increase, (2) decrease value and (3) control level in points
   //--- getting the (4) minimum Bid or Last price change value,
   //--- getting the flag of the minimum Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlLastLowInc(const double value)                    { this.SetControlledValueINC(SYMBOL_PROP_LASTLOW,::fabs(value));                    }
   void              SetControlLastLowDec(const double value)                    { this.SetControlledValueDEC(SYMBOL_PROP_LASTLOW,::fabs(value));                    }
   void              SetControlLastLowLevel(const double value)                  { this.SetControlledValueLEVEL(SYMBOL_PROP_LASTLOW,::fabs(value));                  }
   double            GetValueChangedLastLow(void)                          const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_LASTLOW);                       }
   bool              IsIncreasedLastLow(void)                              const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_LASTLOW);                      }
   bool              IsDecreasedLastLow(void)                              const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_LASTLOW);                      }
   
   //--- Bid/Last
   //--- setting the controlled Bid or Last price (1) increase, (2) decrease value and (3) control level in points
   //--- getting (4) Bid or Last price change value,
   //--- getting the flag of the Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlBidLastInc(const double value);
   void              SetControlBidLastDec(const double value);
   void              SetControlBidLastLevel(const double value);
   double            GetValueChangedBidLast(void)                          const;
   bool              IsIncreasedBidLast(void)                              const;
   bool              IsDecreasedBidLast(void)                              const;
   //--- Maximum Bid/Last of the day
   //--- setting the controlled maximum Bid or Last price (1) increase, (2) decrease value and (3) control level in points
   //--- getting the (4) maximum Bid or Last price change value,
   //--- getting the flag of the maximum Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlBidLastHighInc(const double value);
   void              SetControlBidLastHighDec(const double value);
   void              SetControlBidLastHighLevel(const double value);
   double            GetValueChangedBidLastHigh(void)                      const;
   bool              IsIncreasedBidLastHigh(void)                          const;
   bool              IsDecreasedBidLastHigh(void)                          const;
   //--- Minimum Bid/Last of the day
   //--- setting the controlled minimum Bid or Last price (1) increase, (2) decrease value and (3) control level in points
   //--- getting the (4) minimum Bid or Last price change value,
   //--- getting the flag of the minimum Bid or Last price change exceeding the (5) increase, (6) decrease value
   void              SetControlBidLastLowInc(const double value);
   void              SetControlBidLastLowDec(const double value);
   void              SetControlBidLastLowLevev(const double value);
   double            GetValueChangedBidLastLow(void)                       const;
   bool              IsIncreasedBidLastLow(void)                           const;
   bool              IsDecreasedBidLastLow(void)                           const;
   
   //--- Ask
   //--- setting the controlled Ask price (1) increase, (2) decrease value and (3) control level in points
   //--- getting (4) Ask price change value,
   //--- getting the flag of the Ask price change exceeding the (5) increase, (6) decrease value
   void              SetControlAskInc(const double value)                        { this.SetControlledValueINC(SYMBOL_PROP_ASK,::fabs(value));                        }
   void              SetControlAskDec(const double value)                        { this.SetControlledValueDEC(SYMBOL_PROP_ASK,::fabs(value));                        }
   void              SetControlAskLevel(const double value)                      { this.SetControlledValueLEVEL(SYMBOL_PROP_ASK,::fabs(value));                      }
   double            GetValueChangedAsk(void)                              const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_ASK);                           }
   bool              IsIncreasedAsk(void)                                  const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_ASK);                          }
   bool              IsDecreasedAsk(void)                                  const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_ASK);                          }
   //--- Maximum Ask price for the day
   //--- setting the maximum day Ask controlled (1) increase, (2) decrease and (3) control level
   //--- getting (4) the maximum Ask change value within a day,
   //--- getting the flag of the maximum day Ask change exceeding the (5) increase, (6) decrease value
   void              SetControlAskHighInc(const double value)                    { this.SetControlledValueINC(SYMBOL_PROP_ASKHIGH,::fabs(value));                    }
   void              SetControlAskHighDec(const double value)                    { this.SetControlledValueDEC(SYMBOL_PROP_ASKHIGH,::fabs(value));                    }
   void              SetControlAskHighLevel(const double value)                  { this.SetControlledValueLEVEL(SYMBOL_PROP_ASKHIGH,::fabs(value));                  }
   double            GetValueChangedAskHigh(void)                          const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_ASKHIGH);                       }
   bool              IsIncreasedAskHigh(void)                              const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_ASKHIGH);                      }
   bool              IsDecreasedAskHigh(void)                              const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_ASKHIGH);                      }
   //--- Minimum Ask price for the day
   //--- setting the minimum day Ask controlled (1) increase, (2) decrease and (3) control level
   //--- getting (4) the minimum Ask change value within a day,
   //--- getting the flag of the minimum day Ask change exceeding the (5) increase, (6) decrease value
   void              SetControlAskLowInc(const double value)                     { this.SetControlledValueINC(SYMBOL_PROP_ASKLOW,::fabs(value));                     }
   void              SetControlAskLowDec(const double value)                     { this.SetControlledValueDEC(SYMBOL_PROP_ASKLOW,::fabs(value));                     }
   void              SetControlAskLowLevel(const double value)                   { this.SetControlledValueLEVEL(SYMBOL_PROP_ASKLOW,::fabs(value));                   }
   double            GetValueChangedAskLow(void)                           const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_ASKLOW);                        }
   bool              IsIncreasedAskLow(void)                               const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_ASKLOW);                       }
   bool              IsDecreasedAskLow(void)                               const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_ASKLOW);                       }
   //--- Real Volume for the day
   //--- setting the real day volume controlled (1) increase, (2) decrease and (3) control level
   //--- getting (4) the change value of the real day volume,
   //--- getting the flag of the real day volume change exceeding the (5) increase, (6) decrease value
   void              SetControlVolumeRealInc(const double value)                 { this.SetControlledValueINC(SYMBOL_PROP_VOLUME_REAL,::fabs(value));                }
   void              SetControlVolumeRealDec(const double value)                 { this.SetControlledValueDEC(SYMBOL_PROP_VOLUME_REAL,::fabs(value));                }
   void              SetControlVolumeRealLevel(const double value)               { this.SetControlledValueLEVEL(SYMBOL_PROP_VOLUME_REAL,::fabs(value));              }
   double            GetValueChangedVolumeReal(void)                       const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_VOLUME_REAL);                   }
   bool              IsIncreasedVolumeReal(void)                           const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_VOLUME_REAL);                  }
   bool              IsDecreasedVolumeReal(void)                           const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_VOLUME_REAL);                  }
   //--- Maximum real volume for the day
   //--- setting the maximum real day volume controlled (1) increase, (2) decrease and (3) control level
   //--- getting (4) the change value of the maximum real day volume,
   //--- getting the flag of the maximum real day volume change exceeding the (5) increase, (6) decrease value
   void              SetControlVolumeHighRealInc(const double value)             { this.SetControlledValueINC(SYMBOL_PROP_VOLUMEHIGH_REAL,::fabs(value));            }
   void              SetControlVolumeHighRealDec(const double value)             { this.SetControlledValueDEC(SYMBOL_PROP_VOLUMEHIGH_REAL,::fabs(value));            }
   void              SetControlVolumeHighRealLevel(const double value)           { this.SetControlledValueLEVEL(SYMBOL_PROP_VOLUMEHIGH_REAL,::fabs(value));          }
   double            GetValueChangedVolumeHighReal(void)                   const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_VOLUMEHIGH_REAL);               }
   bool              IsIncreasedVolumeHighReal(void)                       const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_VOLUMEHIGH_REAL);              }
   bool              IsDecreasedVolumeHighReal(void)                       const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_VOLUMEHIGH_REAL);              }
   //--- Minimum real volume for the day
   //--- setting the minimum real day volume controlled (1) increase, (2) decrease and (3) control level
   //--- getting (4) the change value of the minimum real day volume,
   //--- getting the flag of the minimum real day volume change exceeding the (5) increase, (6) decrease value
   void              SetControlVolumeLowRealInc(const double value)              { this.SetControlledValueINC(SYMBOL_PROP_VOLUMELOW_REAL,::fabs(value));             }
   void              SetControlVolumeLowRealDec(const double value)              { this.SetControlledValueDEC(SYMBOL_PROP_VOLUMELOW_REAL,::fabs(value));             }
   void              SetControlVolumeLowRealLevel(const double value)            { this.SetControlledValueLEVEL(SYMBOL_PROP_VOLUMELOW_REAL,::fabs(value));           }
   double            GetValueChangedVolumeLowReal(void)                    const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_VOLUMELOW_REAL);                }
   bool              IsIncreasedVolumeLowReal(void)                        const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_VOLUMELOW_REAL);               }
   bool              IsDecreasedVolumeLowReal(void)                        const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_VOLUMELOW_REAL);               }
   //--- Strike price
   //--- setting the controlled strike price (1) increase, (2) decrease value and (3) control level in points
   //--- getting (4) the change value of the strike price,
   //--- getting the flag of the strike price change exceeding the (5) increase, (6) decrease value
   void              SetControlOptionStrikeInc(const double value)               { this.SetControlledValueINC(SYMBOL_PROP_OPTION_STRIKE,::fabs(value));              }
   void              SetControlOptionStrikeDec(const double value)               { this.SetControlledValueDEC(SYMBOL_PROP_OPTION_STRIKE,::fabs(value));              }
   void              SetControlOptionStrikeLevel(const double value)             { this.SetControlledValueLEVEL(SYMBOL_PROP_OPTION_STRIKE,::fabs(value));            }
   double            GetValueChangedOptionStrike(void)                     const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_OPTION_STRIKE);                 } 
   bool              IsIncreasedOptionStrike(void)                         const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_OPTION_STRIKE);                }
   bool              IsDecreasedOptionStrike(void)                         const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_OPTION_STRIKE);                }
   //--- Maximum allowed total volume of unidirectional positions and orders
   //--- (1) Setting the control level
   //--- (2) getting the change value of the maximum allowed total volume of unidirectional positions and orders,
   //--- getting the flag of (3) increasing, (4) decreasing the maximum allowed total volume of unidirectional positions and orders
   void              SetControlVolumeLimitLevel(const double value)              { this.SetControlledValueLEVEL(SYMBOL_PROP_VOLUME_LIMIT,::fabs(value));             }
   double            GetValueChangedVolumeLimit(void)                      const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_VOLUME_LIMIT);                  }
   bool              IsIncreasedVolumeLimit(void)                          const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_VOLUME_LIMIT);                 }
   bool              IsDecreasedVolumeLimit(void)                          const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_VOLUME_LIMIT);                 }
   //---  Swap long
   //--- (1) Setting the control level
   //--- (2) getting the swap long change value,
   //--- getting the flag of (3) increasing, (4) decreasing the swap long
   void              SetControlSwapLongLevel(const double value)                 { this.SetControlledValueLEVEL(SYMBOL_PROP_SWAP_LONG,::fabs(value));                }
   double            GetValueChangedSwapLong(void)                         const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SWAP_LONG);                     }
   bool              IsIncreasedSwapLong(void)                             const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SWAP_LONG);                    }
   bool              IsDecreasedSwapLong(void)                             const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SWAP_LONG);                    }
   //---  Swap short
   //--- (1) Setting the control level
   //--- (2) getting the swap short change value,
   //--- getting the flag of (3) increasing, (4) decreasing the swap short
   void              SetControlSwapShortLevel(const double value)                { this.SetControlledValueLEVEL(SYMBOL_PROP_SWAP_SHORT,::fabs(value));               }
   double            GetValueChangedSwapShort(void)                        const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SWAP_SHORT);                    }
   bool              IsIncreasedSwapShort(void)                            const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SWAP_SHORT);                   }
   bool              IsDecreasedSwapShort(void)                            const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SWAP_SHORT);                   }
   //--- The total volume of deals in the current session
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the total volume of deals during the current session
   //--- getting (4) the total deal volume change value in the current session,
   //--- getting the flag of the total deal volume change during the current session exceeding the (5) increase, (6) decrease value
   void              SetControlSessionVolumeInc(const double value)              { this.SetControlledValueINC(SYMBOL_PROP_SESSION_VOLUME,::fabs(value));             }
   void              SetControlSessionVolumeDec(const double value)              { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_VOLUME,::fabs(value));             }
   void              SetControlSessionVolumeLevel(const double value)            { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_VOLUME,::fabs(value));           }
   double            GetValueChangedSessionVolume(void)                    const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SESSION_VOLUME);                }
   bool              IsIncreasedSessionVolume(void)                        const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SESSION_VOLUME);               }
   bool              IsDecreasedSessionVolume(void)                        const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SESSION_VOLUME);               }
   //--- The total turnover in the current session
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the total turnover during the current session
   //--- getting (4) the total turnover change value in the current session,
   //--- getting the flag of the total turnover change during the current session exceeding the (5) increase, (6) decrease value
   void              SetControlSessionTurnoverInc(const double value)            { this.SetControlledValueINC(SYMBOL_PROP_SESSION_TURNOVER,::fabs(value));           }
   void              SetControlSessionTurnoverDec(const double value)            { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_TURNOVER,::fabs(value));           }
   void              SetControlSessionTurnoverLevel(const double value)          { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_TURNOVER,::fabs(value));         }
   double            GetValueChangedSessionTurnover(void)                  const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SESSION_TURNOVER);              }
   bool              IsIncreasedSessionTurnover(void)                      const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SESSION_TURNOVER);             }
   bool              IsDecreasedSessionTurnover(void)                      const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SESSION_TURNOVER);             }
   //--- The total volume of open positions
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the total volume of open positions during the current session
   //--- getting (4) the change value of the open positions total volume in the current session,
   //--- getting the flag of the open positions total volume change during the current session exceeding the (5) increase, (6) decrease value
   void              SetControlSessionInterestInc(const double value)            { this.SetControlledValueINC(SYMBOL_PROP_SESSION_INTEREST,::fabs(value));           }
   void              SetControlSessionInterestDec(const double value)            { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_INTEREST,::fabs(value));           }
   void              SetControlSessionInterestLevel(const double value)          { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_INTEREST,::fabs(value));         }
   double            GetValueChangedSessionInterest(void)                  const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SESSION_INTEREST);              }
   bool              IsIncreasedSessionInterest(void)                      const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SESSION_INTEREST);             }
   bool              IsDecreasedSessionInterest(void)                      const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SESSION_INTEREST);             }
   //--- The total volume of Buy orders at the moment
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the current total buy order volume
   //--- getting (4) the change value of the current total buy order volume,
   //--- getting the flag of the current total buy orders' volume change exceeding the (5) increase, (6) decrease value
   void              SetControlSessionBuyOrdVolumeInc(const double value)        { this.SetControlledValueINC(SYMBOL_PROP_SESSION_BUY_ORDERS_VOLUME,::fabs(value));  }
   void              SetControlSessionBuyOrdVolumeDec(const double value)        { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_BUY_ORDERS_VOLUME,::fabs(value));  }
   void              SetControlSessionBuyOrdVolumeLevel(const double value)      { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_BUY_ORDERS_VOLUME,::fabs(value));}
   double            GetValueChangedSessionBuyOrdVolume(void)              const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SESSION_BUY_ORDERS_VOLUME);     }
   bool              IsIncreasedSessionBuyOrdVolume(void)                  const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SESSION_BUY_ORDERS_VOLUME);    }
   bool              IsDecreasedSessionBuyOrdVolume(void)                  const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SESSION_BUY_ORDERS_VOLUME);    }
   //--- The total volume of Sell orders at the moment
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the current total sell order volume
   //--- getting (4) the change value of the current total sell order volume,
   //--- getting the flag of the current total sell orders' volume change exceeding the (5) increase, (6) decrease value
   void              SetControlSessionSellOrdVolumeInc(const double value)       { this.SetControlledValueINC(SYMBOL_PROP_SESSION_SELL_ORDERS_VOLUME,::fabs(value)); }
   void              SetControlSessionSellOrdVolumeDec(const double value)       { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_SELL_ORDERS_VOLUME,::fabs(value)); }
   void              SetControlSessionSellOrdVolumeLevel(const double value)     { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_SELL_ORDERS_VOLUME,::fabs(value));}
   double            GetValueChangedSessionSellOrdVolume(void)             const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SESSION_SELL_ORDERS_VOLUME);    }
   bool              IsIncreasedSessionSellOrdVolume(void)                 const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SESSION_SELL_ORDERS_VOLUME);   }
   bool              IsDecreasedSessionSellOrdVolume(void)                 const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SESSION_SELL_ORDERS_VOLUME);   }
   //--- Session open price
   //--- setting the controlled session open price (1) increase, (2) decrease and (3) control value
   //--- getting (4) the change value of the session open price,
   //--- getting the flag of the session open price change exceeding the (5) increase, (6) decrease value
   void              SetControlSessionPriceOpenInc(const double value)           { this.SetControlledValueINC(SYMBOL_PROP_SESSION_OPEN,::fabs(value));               }
   void              SetControlSessionPriceOpenDec(const double value)           { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_OPEN,::fabs(value));               }
   void              SetControlSessionPriceOpenLevel(const double value)         { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_OPEN,::fabs(value));             }
   double            GetValueChangedSessionPriceOpen(void)                 const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SESSION_OPEN);                  }
   bool              IsIncreasedSessionPriceOpen(void)                     const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SESSION_OPEN);                 }
   bool              IsDecreasedSessionPriceOpen(void)                     const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SESSION_OPEN);                 }
   //--- Session close price
   //--- setting the controlled session close price (1) increase, (2) decrease and (3) control value
   //--- getting (4) the change value of the session close price,
   //--- getting the flag of the session close price change exceeding the (5) increase, (6) decrease value
   void              SetControlSessionPriceCloseInc(const double value)          { this.SetControlledValueINC(SYMBOL_PROP_SESSION_CLOSE,::fabs(value));              }
   void              SetControlSessionPriceCloseDec(const double value)          { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_CLOSE,::fabs(value));              }
   void              SetControlSessionPriceCloseLevel(const double value)        { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_CLOSE,::fabs(value));            }
   double            GetValueChangedSessionPriceClose(void)                const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SESSION_CLOSE);                 }
   bool              IsIncreasedSessionPriceClose(void)                    const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SESSION_CLOSE);                }
   bool              IsDecreasedSessionPriceClose(void)                    const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SESSION_CLOSE);                }
   //--- The average weighted session price
   //--- setting the controlled session average weighted price (1) increase, (2) decrease and (3) control value
   //--- getting (4) the change value of the average weighted session price,
   //--- getting the flag of the average weighted session price change exceeding the (5) increase, (6) decrease value
   void              SetControlSessionPriceAWInc(const double value)             { this.SetControlledValueINC(SYMBOL_PROP_SESSION_AW,::fabs(value));                 }
   void              SetControlSessionPriceAWDec(const double value)             { this.SetControlledValueDEC(SYMBOL_PROP_SESSION_AW,::fabs(value));                 }
   void              SetControlSessionPriceAWLevel(const double value)           { this.SetControlledValueLEVEL(SYMBOL_PROP_SESSION_AW,::fabs(value));               }
   double            GetValueChangedSessionPriceAW(void)                   const { return this.GetPropDoubleChangedValue(SYMBOL_PROP_SESSION_AW);                    }
   bool              IsIncreasedSessionPriceAW(void)                       const { return (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_SESSION_AW);                   }
   bool              IsDecreasedSessionPriceAW(void)                       const { return (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_SESSION_AW);                   }
//---


现在,在类的主体之外实现的方法也直接利用基类方法:

//+------------------------------------------------------------------+
//| Set the Bid or Last price controlled increase                    |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastInc(const double value)
  {
   this.SetControlledValueINC((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BID : SYMBOL_PROP_LAST),::fabs(value));
  }
//+------------------------------------------------------------------+
//|Set the Bid or Last price controlled decrease                     |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastDec(const double value)
  {
   this.SetControlledValueDEC((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BID : SYMBOL_PROP_LAST),::fabs(value));
  }
//+------------------------------------------------------------------+
//| Set the Bid or Last price control level                          |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastLevel(const double value)
  {
   this.SetControlledValueLEVEL((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BID : SYMBOL_PROP_LAST),::fabs(value));
  }
//+------------------------------------------------------------------+
//| Return the Bid or Last price change value                        |
//+------------------------------------------------------------------+
double CSymbol::GetValueChangedBidLast(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? this.GetPropDoubleChangedValue(SYMBOL_PROP_BID) : this.GetPropDoubleChangedValue(SYMBOL_PROP_LAST));
  }
//+------------------------------------------------------------------+
//| Return the flag of the Bid or Last price change                  |
//| exceeding the increase value                                     |
//+------------------------------------------------------------------+
bool CSymbol::IsIncreasedBidLast(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_BID) : (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_LAST));
  }
//+------------------------------------------------------------------+
//| Return the flag of the Bid or Last price change                  |
//| exceeding the decrease value                                     |
//+------------------------------------------------------------------+
bool CSymbol::IsDecreasedBidLast(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_BID) : (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_LAST));
  }
//+------------------------------------------------------------------+
//| Set the controlled increase value                                |
//| of the maximum Bid or Last price                                 |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastHighInc(const double value)
  {
   this.SetControlledValueINC((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BIDHIGH : SYMBOL_PROP_LASTHIGH),::fabs(value));
  }
//+------------------------------------------------------------------+
//| Set the controlled decrease value                                |
//| of the maximum Bid or Last price                                 |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastHighDec(const double value)
  {
   this.SetControlledValueDEC((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BIDHIGH : SYMBOL_PROP_LASTHIGH),::fabs(value));
  }
//+------------------------------------------------------------------+
//| Set the maximum Bid or Last price control level                  |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastHighLevel(const double value)
  {
   this.SetControlledValueLEVEL((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BIDHIGH : SYMBOL_PROP_LASTHIGH),::fabs(value));
  }
//+------------------------------------------------------------------+
//| Return the maximum Bid or Last price change value                |
//+------------------------------------------------------------------+
double CSymbol::GetValueChangedBidLastHigh(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? this.GetPropDoubleChangedValue(SYMBOL_PROP_BIDHIGH) : this.GetPropDoubleChangedValue(SYMBOL_PROP_LASTHIGH));
  }
//+------------------------------------------------------------------+
//| Return the flag of a change of the maximum                       |
//| Bid or Last price exceeding the increase value                   |
//+------------------------------------------------------------------+
bool CSymbol::IsIncreasedBidLastHigh(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_BIDHIGH) : (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_LASTHIGH));
  }
//+------------------------------------------------------------------+
//| Return the flag of a change of the maximum                       |
//| Bid or Last price exceeding the decrease value                   |
//+------------------------------------------------------------------+
bool CSymbol::IsDecreasedBidLastHigh(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_BIDHIGH) : (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_LASTHIGH));
  }
//+------------------------------------------------------------------+
//| Set the controlled increase value                                |
//| of the minimum Bid or Last price                                 |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastLowInc(const double value)
  {
   this.SetControlledValueINC((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BIDLOW : SYMBOL_PROP_LASTLOW),::fabs(value));
  }
//+------------------------------------------------------------------+
//| Set the controlled decrease value                                |
//| of the minimum Bid or Last price                                 |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastLowDec(const double value)
  {
   this.SetControlledValueDEC((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BIDLOW : SYMBOL_PROP_LASTLOW),::fabs(value));
  }
//+------------------------------------------------------------------+
//| Set the minimum Bid or Last price control level                  |
//+------------------------------------------------------------------+
void CSymbol::SetControlBidLastLowLevev(const double value)
  {
   this.SetControlledValueLEVEL((this.ChartMode()==SYMBOL_CHART_MODE_BID ? SYMBOL_PROP_BIDLOW : SYMBOL_PROP_LASTLOW),::fabs(value));
  }
//+------------------------------------------------------------------+
//| Return the minimum Bid or Last price change value                |
//+------------------------------------------------------------------+
double CSymbol::GetValueChangedBidLastLow(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? this.GetPropDoubleChangedValue(SYMBOL_PROP_BIDLOW) : this.GetPropDoubleChangedValue(SYMBOL_PROP_LASTLOW));
  }
//+------------------------------------------------------------------+
//| Return the flag of a change of the minimum                       |
//| Bid or Last price exceeding the increase value                   |
//+------------------------------------------------------------------+
bool CSymbol::IsIncreasedBidLastLow(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_BIDLOW) : (bool)this.GetPropDoubleFlagINC(SYMBOL_PROP_LASTLOW));
  }
//+------------------------------------------------------------------+
//| Return the flag of a change of the minimum                       |
//| Bid or Last price exceeding the decrease value                   |
//+------------------------------------------------------------------+
bool CSymbol::IsDecreasedBidLastLow(void) const
  {
   return(this.ChartMode()==SYMBOL_CHART_MODE_BID ? (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_BIDLOW) : (bool)this.GetPropDoubleFlagDEC(SYMBOL_PROP_LASTLOW));
  }
//+------------------------------------------------------------------+

此外,我在类构造函数中犯了逻辑错误。 创建品种对象后,未立即填写基准对象数据,从而阻碍了在首次启动时跟踪事件。 仅在发生品种属性变化事件,且两次相邻即时报价之间的变化值足够微弱时才开始填充。

我们来修复这个问题 — 填写品种对象属性后,立即在其基准对象属性中填充

//+------------------------------------------------------------------+
//| Closed parametric constructor                                    |
//+------------------------------------------------------------------+
CSymbol::CSymbol(ENUM_SYMBOL_STATUS symbol_status,const string name,const int index)
  {
   this.m_name=name;
   this.m_type=COLLECTION_SYMBOLS_ID;
   if(!this.Exist())
     {
      ::Print(DFUN_ERR_LINE,"\"",this.m_name,"\"",": ",TextByLanguage("Ошибка. Такого символа нет на сервере","Error. No such symbol on the server"));
      this.m_global_error=ERR_MARKET_UNKNOWN_SYMBOL;
     }
   bool select=::SymbolInfoInteger(this.m_name,SYMBOL_SELECT);
   ::ResetLastError();
   if(!select)
     {
      if(!this.SetToMarketWatch())
        {
         this.m_global_error=::GetLastError();
         ::Print(DFUN_ERR_LINE,"\"",this.m_name,"\": ",TextByLanguage("Не удалось поместить в обзор рынка. Ошибка: ","Failed to put in market watch. Error: "),this.m_global_error);
        }
     }
   ::ResetLastError();
   if(!::SymbolInfoTick(this.m_name,this.m_tick))
     {
      this.m_global_error=::GetLastError();
      ::Print(DFUN_ERR_LINE,"\"",this.m_name,"\": ",TextByLanguage("Не удалось получить текущие цены. Ошибка: ","Could not get current prices. Error: "),this.m_global_error);
     }
//--- Initializing base object data arrays
   this.SetControlDataArraySizeLong(SYMBOL_PROP_INTEGER_TOTAL);
   this.SetControlDataArraySizeDouble(SYMBOL_PROP_DOUBLE_TOTAL);
   this.ResetChangesParams();
   this.ResetControlsParams();
   
//--- Initialize symbol data
   this.Reset();
   this.InitMarginRates();
#ifdef __MQL5__
   ::ResetLastError();
   if(!this.MarginRates())
     {
      this.m_global_error=::GetLastError();
      ::Print(DFUN_ERR_LINE,this.Name(),": ",TextByLanguage("Не удалось получить коэффициенты взимания маржи. Ошибка: ","Failed to get margin rates. Error: "),this.m_global_error);
      return;
     }
#endif 
   
//--- Save integer properties
   this.m_long_prop[SYMBOL_PROP_STATUS]                                             = symbol_status;
   this.m_long_prop[SYMBOL_PROP_INDEX_MW]                                           = index;
   this.m_long_prop[SYMBOL_PROP_VOLUME]                                             = (long)this.m_tick.volume;
   this.m_long_prop[SYMBOL_PROP_SELECT]                                             = ::SymbolInfoInteger(this.m_name,SYMBOL_SELECT);
   this.m_long_prop[SYMBOL_PROP_VISIBLE]                                            = ::SymbolInfoInteger(this.m_name,SYMBOL_VISIBLE);
   this.m_long_prop[SYMBOL_PROP_SESSION_DEALS]                                      = ::SymbolInfoInteger(this.m_name,SYMBOL_SESSION_DEALS);
   this.m_long_prop[SYMBOL_PROP_SESSION_BUY_ORDERS]                                 = ::SymbolInfoInteger(this.m_name,SYMBOL_SESSION_BUY_ORDERS);
   this.m_long_prop[SYMBOL_PROP_SESSION_SELL_ORDERS]                                = ::SymbolInfoInteger(this.m_name,SYMBOL_SESSION_SELL_ORDERS);
   this.m_long_prop[SYMBOL_PROP_VOLUMEHIGH]                                         = ::SymbolInfoInteger(this.m_name,SYMBOL_VOLUMEHIGH);
   this.m_long_prop[SYMBOL_PROP_VOLUMELOW]                                          = ::SymbolInfoInteger(this.m_name,SYMBOL_VOLUMELOW);
   this.m_long_prop[SYMBOL_PROP_DIGITS]                                             = ::SymbolInfoInteger(this.m_name,SYMBOL_DIGITS);
   this.m_long_prop[SYMBOL_PROP_SPREAD]                                             = ::SymbolInfoInteger(this.m_name,SYMBOL_SPREAD);
   this.m_long_prop[SYMBOL_PROP_SPREAD_FLOAT]                                       = ::SymbolInfoInteger(this.m_name,SYMBOL_SPREAD_FLOAT);
   this.m_long_prop[SYMBOL_PROP_TICKS_BOOKDEPTH]                                    = ::SymbolInfoInteger(this.m_name,SYMBOL_TICKS_BOOKDEPTH);
   this.m_long_prop[SYMBOL_PROP_TRADE_MODE]                                         = ::SymbolInfoInteger(this.m_name,SYMBOL_TRADE_MODE);
   this.m_long_prop[SYMBOL_PROP_START_TIME]                                         = ::SymbolInfoInteger(this.m_name,SYMBOL_START_TIME);
   this.m_long_prop[SYMBOL_PROP_EXPIRATION_TIME]                                    = ::SymbolInfoInteger(this.m_name,SYMBOL_EXPIRATION_TIME);
   this.m_long_prop[SYMBOL_PROP_TRADE_STOPS_LEVEL]                                  = ::SymbolInfoInteger(this.m_name,SYMBOL_TRADE_STOPS_LEVEL);
   this.m_long_prop[SYMBOL_PROP_TRADE_FREEZE_LEVEL]                                 = ::SymbolInfoInteger(this.m_name,SYMBOL_TRADE_FREEZE_LEVEL);
   this.m_long_prop[SYMBOL_PROP_TRADE_EXEMODE]                                      = ::SymbolInfoInteger(this.m_name,SYMBOL_TRADE_EXEMODE);
   this.m_long_prop[SYMBOL_PROP_SWAP_ROLLOVER3DAYS]                                 = ::SymbolInfoInteger(this.m_name,SYMBOL_SWAP_ROLLOVER3DAYS);
   this.m_long_prop[SYMBOL_PROP_TIME]                                               = this.TickTime();
   this.m_long_prop[SYMBOL_PROP_EXIST]                                              = this.SymbolExists();
   this.m_long_prop[SYMBOL_PROP_CUSTOM]                                             = this.SymbolCustom();
   this.m_long_prop[SYMBOL_PROP_MARGIN_HEDGED_USE_LEG]                              = this.SymbolMarginHedgedUseLEG();
   this.m_long_prop[SYMBOL_PROP_ORDER_MODE]                                         = this.SymbolOrderMode();
   this.m_long_prop[SYMBOL_PROP_FILLING_MODE]                                       = this.SymbolOrderFillingMode();
   this.m_long_prop[SYMBOL_PROP_EXPIRATION_MODE]                                    = this.SymbolExpirationMode();
   this.m_long_prop[SYMBOL_PROP_ORDER_GTC_MODE]                                     = this.SymbolOrderGTCMode();
   this.m_long_prop[SYMBOL_PROP_OPTION_MODE]                                        = this.SymbolOptionMode();
   this.m_long_prop[SYMBOL_PROP_OPTION_RIGHT]                                       = this.SymbolOptionRight();
   this.m_long_prop[SYMBOL_PROP_BACKGROUND_COLOR]                                   = this.SymbolBackgroundColor();
   this.m_long_prop[SYMBOL_PROP_CHART_MODE]                                         = this.SymbolChartMode();
   this.m_long_prop[SYMBOL_PROP_TRADE_CALC_MODE]                                    = this.SymbolCalcMode();
   this.m_long_prop[SYMBOL_PROP_SWAP_MODE]                                          = this.SymbolSwapMode();
//--- Save real properties
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_ASKHIGH)]                          = ::SymbolInfoDouble(this.m_name,SYMBOL_ASKHIGH);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_ASKLOW)]                           = ::SymbolInfoDouble(this.m_name,SYMBOL_ASKLOW);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_LASTHIGH)]                         = ::SymbolInfoDouble(this.m_name,SYMBOL_LASTHIGH);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_LASTLOW)]                          = ::SymbolInfoDouble(this.m_name,SYMBOL_LASTLOW);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_POINT)]                            = ::SymbolInfoDouble(this.m_name,SYMBOL_POINT);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_TRADE_TICK_VALUE)]                 = ::SymbolInfoDouble(this.m_name,SYMBOL_TRADE_TICK_VALUE);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_TRADE_TICK_VALUE_PROFIT)]          = ::SymbolInfoDouble(this.m_name,SYMBOL_TRADE_TICK_VALUE_PROFIT);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_TRADE_TICK_VALUE_LOSS)]            = ::SymbolInfoDouble(this.m_name,SYMBOL_TRADE_TICK_VALUE_LOSS);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_TRADE_TICK_SIZE)]                  = ::SymbolInfoDouble(this.m_name,SYMBOL_TRADE_TICK_SIZE);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_TRADE_CONTRACT_SIZE)]              = ::SymbolInfoDouble(this.m_name,SYMBOL_TRADE_CONTRACT_SIZE);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_VOLUME_MIN)]                       = ::SymbolInfoDouble(this.m_name,SYMBOL_VOLUME_MIN);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_VOLUME_MAX)]                       = ::SymbolInfoDouble(this.m_name,SYMBOL_VOLUME_MAX);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_VOLUME_STEP)]                      = ::SymbolInfoDouble(this.m_name,SYMBOL_VOLUME_STEP);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_VOLUME_LIMIT)]                     = ::SymbolInfoDouble(this.m_name,SYMBOL_VOLUME_LIMIT);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SWAP_LONG)]                        = ::SymbolInfoDouble(this.m_name,SYMBOL_SWAP_LONG);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SWAP_SHORT)]                       = ::SymbolInfoDouble(this.m_name,SYMBOL_SWAP_SHORT);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_INITIAL)]                   = ::SymbolInfoDouble(this.m_name,SYMBOL_MARGIN_INITIAL);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_MAINTENANCE)]               = ::SymbolInfoDouble(this.m_name,SYMBOL_MARGIN_MAINTENANCE);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_VOLUME)]                   = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_VOLUME);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_TURNOVER)]                 = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_TURNOVER);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_INTEREST)]                 = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_INTEREST);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_BUY_ORDERS_VOLUME)]        = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_BUY_ORDERS_VOLUME);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_SELL_ORDERS_VOLUME)]       = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_SELL_ORDERS_VOLUME);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_OPEN)]                     = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_OPEN);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_CLOSE)]                    = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_CLOSE);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_AW)]                       = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_AW);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_PRICE_SETTLEMENT)]         = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_PRICE_SETTLEMENT);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_PRICE_LIMIT_MIN)]          = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_PRICE_LIMIT_MIN);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_SESSION_PRICE_LIMIT_MAX)]          = ::SymbolInfoDouble(this.m_name,SYMBOL_SESSION_PRICE_LIMIT_MAX);
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_BID)]                              = this.m_tick.bid;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_ASK)]                              = this.m_tick.ask;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_LAST)]                             = this.m_tick.last;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_BIDHIGH)]                          = this.SymbolBidHigh();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_BIDLOW)]                           = this.SymbolBidLow();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_VOLUME_REAL)]                      = this.SymbolVolumeReal();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_VOLUMEHIGH_REAL)]                  = this.SymbolVolumeHighReal();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_VOLUMELOW_REAL)]                   = this.SymbolVolumeLowReal();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_OPTION_STRIKE)]                    = this.SymbolOptionStrike();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_TRADE_ACCRUED_INTEREST)]           = this.SymbolTradeAccruedInterest();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_TRADE_FACE_VALUE)]                 = this.SymbolTradeFaceValue();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_TRADE_LIQUIDITY_RATE)]             = this.SymbolTradeLiquidityRate();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_HEDGED)]                    = this.SymbolMarginHedged();
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_LONG_INITIAL)]              = this.m_margin_rate.Long.Initial;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_BUY_STOP_INITIAL)]          = this.m_margin_rate.BuyStop.Initial;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_BUY_LIMIT_INITIAL)]         = this.m_margin_rate.BuyLimit.Initial;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_BUY_STOPLIMIT_INITIAL)]     = this.m_margin_rate.BuyStopLimit.Initial;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_LONG_MAINTENANCE)]          = this.m_margin_rate.Long.Maintenance;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_BUY_STOP_MAINTENANCE)]      = this.m_margin_rate.BuyStop.Maintenance;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_BUY_LIMIT_MAINTENANCE)]     = this.m_margin_rate.BuyLimit.Maintenance;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_BUY_STOPLIMIT_MAINTENANCE)] = this.m_margin_rate.BuyStopLimit.Maintenance;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_SHORT_INITIAL)]             = this.m_margin_rate.Short.Initial;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_SELL_STOP_INITIAL)]         = this.m_margin_rate.SellStop.Initial;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_SELL_LIMIT_INITIAL)]        = this.m_margin_rate.SellLimit.Initial;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_SELL_STOPLIMIT_INITIAL)]    = this.m_margin_rate.SellStopLimit.Initial;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_SHORT_MAINTENANCE)]         = this.m_margin_rate.Short.Maintenance;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_SELL_STOP_MAINTENANCE)]     = this.m_margin_rate.SellStop.Maintenance;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_SELL_LIMIT_MAINTENANCE)]    = this.m_margin_rate.SellLimit.Maintenance;
   this.m_double_prop[this.IndexProp(SYMBOL_PROP_MARGIN_SELL_STOPLIMIT_MAINTENANCE)]= this.m_margin_rate.SellStopLimit.Maintenance;
//--- Save string properties
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_NAME)]                             = this.m_name;
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_CURRENCY_BASE)]                    = ::SymbolInfoString(this.m_name,SYMBOL_CURRENCY_BASE);
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_CURRENCY_PROFIT)]                  = ::SymbolInfoString(this.m_name,SYMBOL_CURRENCY_PROFIT);
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_CURRENCY_MARGIN)]                  = ::SymbolInfoString(this.m_name,SYMBOL_CURRENCY_MARGIN);
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_DESCRIPTION)]                      = ::SymbolInfoString(this.m_name,SYMBOL_DESCRIPTION);
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_PATH)]                             = ::SymbolInfoString(this.m_name,SYMBOL_PATH);
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_BASIS)]                            = this.SymbolBasis();
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_BANK)]                             = this.SymbolBank();
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_ISIN)]                             = this.SymbolISIN();
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_FORMULA)]                          = this.SymbolFormula();
   this.m_string_prop[this.IndexProp(SYMBOL_PROP_PAGE)]                             = this.SymbolPage();
//--- Save additional integer properties
   this.m_long_prop[SYMBOL_PROP_DIGITS_LOTS]                                        = this.SymbolDigitsLot();
   
//--- Fill in the symbol current data
   for(int i=0;i<SYMBOL_PROP_INTEGER_TOTAL;i++)
      this.m_long_prop_event[i][3]=this.m_long_prop[i];
   for(int i=0;i<SYMBOL_PROP_DOUBLE_TOTAL;i++)
      this.m_double_prop_event[i][3]=this.m_double_prop[i];
   
//--- Update the base object data and search for changes
   CBaseObj::Refresh();
//---
   if(!select)
      this.RemoveFromMarketWatch();
  }
//+------------------------------------------------------------------+


还要打开 \MQL5\Include\DoEasy\Collections\SymbolsCollection.mqh 文件,并在品种集合类的公开部分中,修改刷新集合品种和搜索 SymbolsEventsControl() 事件的方法名称。
令方法名称与其任务更相符 — 更新数据并搜索事件:

//--- Working with the events of the (1) collection symbol list, (2) market watch window
   void              RefreshAndEventsControl(void);
   void              MarketWatchEventsControl(const bool send_events=true);


这些就是要在基准对象,其衍生 (品种对象)和品种集合类中实现的所有修改。

现在,我们开始改进帐户对象类,令其也衍生自 CBaseObj 基准对象,并令其获得事件功能,以便轻松跟踪帐户对象属性的变化。

改造帐户对象

您可能还记得上一篇文章,当利用基准对象作为事件生成源时,我们勿需创建事件标志和根据标志组合创建事件 ID。 现在,基准对象的事件功能更加灵活。 这意味着我们需要从函数库的 Defines.mqh 文件中删除不必要的枚举:

//+------------------------------------------------------------------+
//| Data for working with accounts                                   |
//+------------------------------------------------------------------+
//+------------------------------------------------------------------+
//| List of account event flags                                      |
//+------------------------------------------------------------------+
enum ENUM_ACCOUNT_EVENT_FLAGS
  {
   ACCOUNT_EVENT_FLAG_NO_EVENT            =  0,             // No event
   ACCOUNT_EVENT_FLAG_LEVERAGE            =  1,             // Changing the leverage
   ACCOUNT_EVENT_FLAG_LIMIT_ORDERS        =  2,             // Changing permission for auto trading for the account
   ACCOUNT_EVENT_FLAG_TRADE_ALLOWED       =  4,             // Changing permission to trade for the account
   ACCOUNT_EVENT_FLAG_TRADE_EXPERT        =  8,             // Changing permission for auto trading for the account
   ACCOUNT_EVENT_FLAG_BALANCE             =  16,            // The balance exceeds the specified change value +/-
   ACCOUNT_EVENT_FLAG_EQUITY              =  32,            // The equity exceeds the specified change value +/-
   ACCOUNT_EVENT_FLAG_PROFIT              =  64,            // The profit exceeds the specified change value +/-
   ACCOUNT_EVENT_FLAG_CREDIT              =  128,           // Change a credit in a deposit currency
   ACCOUNT_EVENT_FLAG_MARGIN              =  256,           // The reserved margin on an account in the deposit currency change exceeds the specified value +/-
   ACCOUNT_EVENT_FLAG_MARGIN_FREE         =  512,           // The free funds available for opening a position in a deposit currency exceed the specified change value +/-
   ACCOUNT_EVENT_FLAG_MARGIN_LEVEL        =  1024,          // The margin level on an account in % exceeds the specified change value +/-
   ACCOUNT_EVENT_FLAG_MARGIN_INITIAL      =  2048,          // The funds reserved on an account to ensure a guarantee amount for all pending orders exceed the specified change value +/-
   ACCOUNT_EVENT_FLAG_MARGIN_MAINTENANCE  =  4096,          // The funds reserved on an account to ensure a minimum amount for all open positions exceed the specified change value +/-
   ACCOUNT_EVENT_FLAG_MARGIN_SO_CALL      =  8192,          // Changing the Margin Call level
   ACCOUNT_EVENT_FLAG_MARGIN_SO_SO        =  16384,         // Changing the Stop Out level
   ACCOUNT_EVENT_FLAG_ASSETS              =  32768,         // The current assets on an account exceed the specified change value +/-
   ACCOUNT_EVENT_FLAG_LIABILITIES         =  65536,         // The current liabilities on an account exceed the specified change value +/-
   ACCOUNT_EVENT_FLAG_COMISSION_BLOCKED   =  131072,        // The current sum of blocked commissions on an account exceeds the specified change value +/-
  };
//+------------------------------------------------------------------+
//| List of possible account events                                  |
//+------------------------------------------------------------------+
enum ENUM_ACCOUNT_EVENT
  {
   ACCOUNT_EVENT_NO_EVENT = TRADE_EVENTS_NEXT_CODE,         // No event
   ACCOUNT_EVENT_LEVERAGE_INC,                              // Increasing the leverage
   ACCOUNT_EVENT_LEVERAGE_DEC,                              // Decreasing the leverage
   ACCOUNT_EVENT_LIMIT_ORDERS_INC,                          // Increasing the maximum allowed number of active pending orders
   ACCOUNT_EVENT_LIMIT_ORDERS_DEC,                          // Decreasing the maximum allowed number of active pending orders
   ACCOUNT_EVENT_TRADE_ALLOWED_ON,                          // Enabling trading for the account
   ACCOUNT_EVENT_TRADE_ALLOWED_OFF,                         // Disabling trading for the account
   ACCOUNT_EVENT_TRADE_EXPERT_ON,                           // Enabling auto trading for the account
   ACCOUNT_EVENT_TRADE_EXPERT_OFF,                          // Disabling auto trading for the account
   ACCOUNT_EVENT_BALANCE_INC,                               // The balance exceeds the specified value
   ACCOUNT_EVENT_BALANCE_DEC,                               // The balance falls below the specified value
   ACCOUNT_EVENT_EQUITY_INC,                                // The equity exceeds the specified value
   ACCOUNT_EVENT_EQUITY_DEC,                                // The equity falls below the specified value
   ACCOUNT_EVENT_PROFIT_INC,                                // The profit exceeds the specified value
   ACCOUNT_EVENT_PROFIT_DEC,                                // The profit falls below the specified value
   ACCOUNT_EVENT_CREDIT_INC,                                // The credit exceeds the specified value in a deposit currency
   ACCOUNT_EVENT_CREDIT_DEC,                                // The credit falls below the specified value in a deposit currency
   ACCOUNT_EVENT_MARGIN_INC,                                // Increasing the reserved margin on an account in a deposit currency
   ACCOUNT_EVENT_MARGIN_DEC,                                // Decreasing the reserved margin on an account in a deposit currency
   ACCOUNT_EVENT_MARGIN_FREE_INC,                           // Increasing the free funds available for opening a position in a deposit currency
   ACCOUNT_EVENT_MARGIN_FREE_DEC,                           // Decreasing the free funds available for opening a position in a deposit currency
   ACCOUNT_EVENT_MARGIN_LEVEL_INC,                          // Increasing the margin level on an account in %
   ACCOUNT_EVENT_MARGIN_LEVEL_DEC,                          // Decreasing the margin level on an account in %
   ACCOUNT_EVENT_MARGIN_INITIAL_INC,                        // Increasing the funds reserved on an account to ensure a guarantee amount for all pending orders
   ACCOUNT_EVENT_MARGIN_INITIAL_DEC,                        // Decreasing the funds reserved on an account to ensure a guarantee amount for all pending orders
   ACCOUNT_EVENT_MARGIN_MAINTENANCE_INC,                    // Increasing the funds reserved on an account to ensure a minimum amount for all open positions
   ACCOUNT_EVENT_MARGIN_MAINTENANCE_DEC,                    // Decreasing the funds reserved on an account to ensure a minimum amount for all open positions
   ACCOUNT_EVENT_MARGIN_SO_CALL_INC,                        // Increasing the Margin Call level
   ACCOUNT_EVENT_MARGIN_SO_CALL_DEC,                        // Decreasing the Margin Call level
   ACCOUNT_EVENT_MARGIN_SO_SO_INC,                          // Increasing the Stop Out level
   ACCOUNT_EVENT_MARGIN_SO_SO_DEC,                          // Decreasing the Stop Out level
   ACCOUNT_EVENT_ASSETS_INC,                                // Increasing the current asset size on the account
   ACCOUNT_EVENT_ASSETS_DEC,                                // Decreasing the current asset size on the account
   ACCOUNT_EVENT_LIABILITIES_INC,                           // Increasing the current liabilities on the account
   ACCOUNT_EVENT_LIABILITIES_DEC,                           // Decreasing the current liabilities on the account
   ACCOUNT_EVENT_COMISSION_BLOCKED_INC,                     // Increasing the current sum of blocked commissions on an account
   ACCOUNT_EVENT_COMISSION_BLOCKED_DEC,                     // Decreasing the current sum of blocked commissions on an account
  };


这些枚举只剩下一条 宏替换,代表下一个事件代码

//+------------------------------------------------------------------+
//| Data for working with accounts                                   |
//+------------------------------------------------------------------+
#define ACCOUNT_EVENTS_NEXT_CODE       (TRADE_EVENTS_NEXT_CODE)   // The code of the next event after the last account event code
//+------------------------------------------------------------------+
//| Account integer properties                                       |
//+------------------------------------------------------------------+


打开 \MQL5\Include\DoEasy\Objects\Accounts\Account.mqh 文件,并进行必要修改。

在类的公开部分中声明 Refresh() 虚方法

public:
//--- Constructor
                     CAccount(void);
//--- Set account's (1) integer, (2) real and (3) string properties
   void              SetProperty(ENUM_ACCOUNT_PROP_INTEGER property,long value)        { this.m_long_prop[property]=value;                                  }
   void              SetProperty(ENUM_ACCOUNT_PROP_DOUBLE property,double value)       { this.m_double_prop[this.IndexProp(property)]=value;                }
   void              SetProperty(ENUM_ACCOUNT_PROP_STRING property,string value)       { this.m_string_prop[this.IndexProp(property)]=value;                }
//--- Return (1) integer, (2) real and (3) string order properties from the account string property
   long              GetProperty(ENUM_ACCOUNT_PROP_INTEGER property)             const { return this.m_long_prop[property];                                 }
   double            GetProperty(ENUM_ACCOUNT_PROP_DOUBLE property)              const { return this.m_double_prop[this.IndexProp(property)];               }
   string            GetProperty(ENUM_ACCOUNT_PROP_STRING property)              const { return this.m_string_prop[this.IndexProp(property)];               }

//--- Return the flag of calculating MarginCall and StopOut levels in %
   bool              IsPercentsForSOLevels(void)                                 const { return this.MarginSOMode()==ACCOUNT_STOPOUT_MODE_PERCENT;          }
//--- Return the flag of supporting the property by the account object
   virtual bool      SupportProperty(ENUM_ACCOUNT_PROP_INTEGER property)               { return true; }
   virtual bool      SupportProperty(ENUM_ACCOUNT_PROP_DOUBLE property)                { return true; }
   virtual bool      SupportProperty(ENUM_ACCOUNT_PROP_STRING property)                { return true; }

//--- Compare CAccount objects by all possible properties (for sorting the lists by a specified account object property)
   virtual int       Compare(const CObject *node,const int mode=0) const;
//--- Compare CAccount objects by account properties (to search for equal account objects)
   bool              IsEqual(CAccount* compared_account) const;
//--- Update all account data
   virtual void      Refresh(void);
//--- (1) Save the account object to the file, (2), download the account object from the file
   virtual bool      Save(const int file_handle);
   virtual bool      Load(const int file_handle);


若要更新当前帐户数据,如同 CSymbol 类以及基于 CBaseObj 基准对象的所有后续类一样,调用 Refresh() 方法。 以前,我们从帐户集合类更新当前帐户数据。 但是,为了令所有类具有相同的结构,我们将按 CSymbol 中相同的方式进行所有操作,将来的其他类也会运用相同的方式进行操作。

我们已在 CSymbol 类中创建了用于获取和设置跟踪品种属性参数的方法。
我们也要为帐户对象类创建相同的方法:

//+------------------------------------------------------------------+
//| Get and set the parameters of tracked property changes           |
//+------------------------------------------------------------------+
   //--- setting the controlled leverage (1) increase, (2) decrease value and (3) control level
   //--- getting the (3) leverage change value,
   //--- getting the flag of the leverage change exceeding the (4) increase, (5) decrease value
   void              SetControlLeverageInc(const long value)               { this.SetControlledValueINC(ACCOUNT_PROP_LEVERAGE,(long)::fabs(value));               }
   void              SetControlLeverageDec(const long value)               { this.SetControlledValueDEC(ACCOUNT_PROP_LEVERAGE,(long)::fabs(value));               }
   void              SetControlLeverageLevel(const long value)             { this.SetControlledValueLEVEL(ACCOUNT_PROP_LEVERAGE,(long)::fabs(value));             }
   long              GetValueChangedLeverage(void)                   const { return this.GetPropLongChangedValue(ACCOUNT_PROP_LEVERAGE);                          }
   bool              IsIncreasedLeverage(void)                       const { return (bool)this.GetPropLongFlagINC(ACCOUNT_PROP_LEVERAGE);                         }
   bool              IsDecreasedLeverage(void)                       const { return (bool)this.GetPropLongFlagDEC(ACCOUNT_PROP_LEVERAGE);                         }
   
   //--- setting the controlled value of (1) growth, (2) decrease and (3) control level of the number of active pending orders
   //--- getting (3) the change value of the number of active pending orders,
   //--- getting the flag of the number of active pending orders exceeding the (4) increase, (5) decrease value
   void              SetControlLimitOrdersInc(const long value)            { this.SetControlledValueINC(ACCOUNT_PROP_LIMIT_ORDERS,(long)::fabs(value));           }
   void              SetControlLimitOrdersDec(const long value)            { this.SetControlledValueDEC(ACCOUNT_PROP_LIMIT_ORDERS,(long)::fabs(value));           }
   void              SetControlLimitOrdersLevel(const long value)          { this.SetControlledValueLEVEL(ACCOUNT_PROP_LIMIT_ORDERS,(long)::fabs(value));         }
   long              GetValueChangedLimitOrders(void)                const { return this.GetPropLongChangedValue(ACCOUNT_PROP_LIMIT_ORDERS);                      }
   bool              IsIncreasedLimitOrders(void)                    const { return (bool)this.GetPropLongFlagINC(ACCOUNT_PROP_LIMIT_ORDERS);                     }
   bool              IsDecreasedLimitOrders(void)                    const { return (bool)this.GetPropLongFlagDEC(ACCOUNT_PROP_LIMIT_ORDERS);                     }
   
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the permission to trade for the current account from the server side
   //--- getting (3) the value of the permission to trade for the current account from the server side,
   //--- getting the flag of a change of the permission to trade for the current account from the server side exceeding the (4) increase and (5) decrease values
   void              SetControlTradeAllowedInc(const long value)           { this.SetControlledValueINC(ACCOUNT_PROP_TRADE_ALLOWED,(long)::fabs(value));          }
   void              SetControlTradeAllowedDec(const long value)           { this.SetControlledValueDEC(ACCOUNT_PROP_TRADE_ALLOWED,(long)::fabs(value));          }
   void              SetControlTradeAllowedLevel(const long value)         { this.SetControlledValueLEVEL(ACCOUNT_PROP_TRADE_ALLOWED,(long)::fabs(value));        }
   long              GetValueChangedTradeAllowed(void)               const { return this.GetPropLongChangedValue(ACCOUNT_PROP_TRADE_ALLOWED);                     }
   bool              IsIncreasedTradeAllowed(void)                   const { return (bool)this.GetPropLongFlagINC(ACCOUNT_PROP_TRADE_ALLOWED);                    }
   bool              IsDecreasedTradeAllowed(void)                   const { return (bool)this.GetPropLongFlagDEC(ACCOUNT_PROP_TRADE_ALLOWED);                    }
   
   //--- setting the controlled value of (1) increase, (2) decrease and (3) control level of the permission to trade for an EA from the server side
   //--- getting (3) the value of the permission to trade for an EA from the server side,
   //--- getting the flag of a change of the permission to trade for an EA from the server side exceeding the (4) increase and (5) decrease values
   void              SetControlTradeExpertInc(const long value)            { this.SetControlledValueINC(ACCOUNT_PROP_TRADE_EXPERT,(long)::fabs(value));           }
   void              SetControlTradeExpertDec(const long value)            { this.SetControlledValueDEC(ACCOUNT_PROP_TRADE_EXPERT,(long)::fabs(value));           }
   void              SetControlTradeExpertLevel(const long value)          { this.SetControlledValueLEVEL(ACCOUNT_PROP_TRADE_EXPERT,(long)::fabs(value));         }
   long              GetValueChangedTradeExpert(void)                const { return this.GetPropLongChangedValue(ACCOUNT_PROP_TRADE_EXPERT);                      }
   bool              IsIncreasedTradeExpert(void)                    const { return (bool)this.GetPropLongFlagINC(ACCOUNT_PROP_TRADE_EXPERT);                     }
   bool              IsDecreasedTradeExpert(void)                    const { return (bool)this.GetPropLongFlagDEC(ACCOUNT_PROP_TRADE_EXPERT);                     }
   
   //--- setting the controlled balance (1) increase, (2) decrease value and (3) control level
   //--- getting (3) the balance change value,
   //--- getting the flag of the balance change exceeding the (4) increase value, (5) decrease value
   void              SetControlBalanceInc(const long value)                { this.SetControlledValueINC(ACCOUNT_PROP_BALANCE,(double)::fabs(value));              }
   void              SetControlBalanceDec(const long value)                { this.SetControlledValueDEC(ACCOUNT_PROP_BALANCE,(double)::fabs(value));              }
   void              SetControlBalanceLevel(const long value)              { this.SetControlledValueLEVEL(ACCOUNT_PROP_BALANCE,(double)::fabs(value));            }
   double            GetValueChangedBalance(void)                    const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_BALANCE);                         }
   bool              IsIncreasedBalance(void)                        const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_BALANCE);                        }
   bool              IsDecreasedBalance(void)                        const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_BALANCE);                        }
   
   //--- setting the controlled credit (1) increase, (2) decrease value and (3) control level
   //--- getting the (3) credit change value,
   //--- getting the flag of the credit change exceeding the (4) increase, (5) decrease value
   void              SetControlCreditInc(const long value)                 { this.SetControlledValueINC(ACCOUNT_PROP_CREDIT,(double)::fabs(value));               }
   void              SetControlCreditDec(const long value)                 { this.SetControlledValueDEC(ACCOUNT_PROP_CREDIT,(double)::fabs(value));               }
   void              SetControlCreditLevel(const long value)               { this.SetControlledValueLEVEL(ACCOUNT_PROP_CREDIT,(double)::fabs(value));             }
   double            GetValueChangedCredit(void)                     const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_CREDIT);                          }
   bool              IsIncreasedCredit(void)                         const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_CREDIT);                         }
   bool              IsDecreasedCredit(void)                         const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_CREDIT);                         }
   
   //--- setting the controlled profit (1) increase, (2) decrease value and (3) control level
   //--- getting the (3) profit change value,
   //--- getting the flag of the profit change exceeding the (4) increase, (5) decrease value
   void              SetControlProfitInc(const long value)                 { this.SetControlledValueINC(ACCOUNT_PROP_PROFIT,(double)::fabs(value));               }
   void              SetControlProfitDec(const long value)                 { this.SetControlledValueDEC(ACCOUNT_PROP_PROFIT,(double)::fabs(value));               }
   void              SetControlProfitLevel(const long value)               { this.SetControlledValueLEVEL(ACCOUNT_PROP_PROFIT,(double)::fabs(value));             }
   double            GetValueChangedProfit(void)                     const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_PROFIT);                          }
   bool              IsIncreasedProfit(void)                         const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_PROFIT);                         }
   bool              IsDecreasedProfit(void)                         const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_PROFIT);                         }
   
   //--- setting the controlled equity (1) increase, (2) decrease value and (3) control level
   //--- getting the (3) equity change value,
   //--- getting the flag of the equity change exceeding the (4) increase, (5) decrease value
   void              SetControlEquityInc(const long value)                 { this.SetControlledValueINC(ACCOUNT_PROP_EQUITY,(double)::fabs(value));               }
   void              SetControlEquityDec(const long value)                 { this.SetControlledValueDEC(ACCOUNT_PROP_EQUITY,(double)::fabs(value));               }
   void              SetControlEquityLevel(const long value)               { this.SetControlledValueLEVEL(ACCOUNT_PROP_EQUITY,(double)::fabs(value));             }
   double            GetValueChangedEquity(void)                     const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_EQUITY);                          }
   bool              IsIncreasedEquity(void)                         const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_EQUITY);                         }
   bool              IsDecreasedEquity(void)                         const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_EQUITY);                         }
   
   //--- setting the controlled margin (1) increase, (2) decrease value and (3) control level
   //--- getting the (3) margin change value,
   //--- getting the flag of the margin change exceeding the (4) increase, (5) decrease value
   void              SetControlMarginInc(const long value)                 { this.SetControlledValueINC(ACCOUNT_PROP_MARGIN,(double)::fabs(value));               }
   void              SetControlMarginDec(const long value)                 { this.SetControlledValueDEC(ACCOUNT_PROP_MARGIN,(double)::fabs(value));               }
   void              SetControlMarginLevel(const long value)               { this.SetControlledValueLEVEL(ACCOUNT_PROP_MARGIN,(double)::fabs(value));             }
   double            GetValueChangedMargin(void)                     const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_MARGIN);                          }
   bool              IsIncreasedMargin(void)                         const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_MARGIN);                         }
   bool              IsDecreasedMargin(void)                         const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_MARGIN);                         }
   
   //--- setting the controlled free margin (1) increase, (2) decrease value and (3) control level
   //--- getting the (3) free margin change value,
   //--- getting the flag of the free margin change exceeding the (4) increase, (5) decrease value
   void              SetControlMarginFreeInc(const long value)             { this.SetControlledValueINC(ACCOUNT_PROP_MARGIN_FREE,(double)::fabs(value));          }
   void              SetControlMarginFreeDec(const long value)             { this.SetControlledValueDEC(ACCOUNT_PROP_MARGIN_FREE,(double)::fabs(value));          }
   void              SetControlMarginFreeLevel(const long value)           { this.SetControlledValueLEVEL(ACCOUNT_PROP_MARGIN_FREE,(double)::fabs(value));        }
   double            GetValueChangedMarginFree(void)                 const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_MARGIN_FREE);                     }
   bool              IsIncreasedMarginFree(void)                     const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_MARGIN_FREE);                    }
   bool              IsDecreasedMarginFree(void)                     const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_MARGIN_FREE);                    }
   
   //--- setting the controlled margin level (1) increase, (2) decrease value and (3) control level
   //--- getting the (3) margin level change value,
   //--- getting the flag of the margin level change exceeding the (4) increase, (5) decrease value
   void              SetControlMarginLevelInc(const long value)            { this.SetControlledValueINC(ACCOUNT_PROP_MARGIN_LEVEL,(double)::fabs(value));         }
   void              SetControlMarginLevelDec(const long value)            { this.SetControlledValueDEC(ACCOUNT_PROP_MARGIN_LEVEL,(double)::fabs(value));         }
   void              SetControlMarginLevelLevel(const long value)          { this.SetControlledValueLEVEL(ACCOUNT_PROP_MARGIN_LEVEL,(double)::fabs(value));       }
   double            GetValueChangedMarginLevel(void)                const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_MARGIN_LEVEL);                    }
   bool              IsIncreasedMarginLevel(void)                    const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_MARGIN_LEVEL);                   }
   bool              IsDecreasedMarginLevel(void)                    const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_MARGIN_LEVEL);                   }
   
   //--- setting the controlled Margin Call (1) increase, (2) decrease value and (3) control level in points
   //--- getting (3) Margin Call level change value,
   //--- getting the flag of the Margin Call level change exceeding the (4) increase, (5) decrease value
   void              SetControlMarginCallInc(const long value)             { this.SetControlledValueINC(ACCOUNT_PROP_MARGIN_SO_CALL,(double)::fabs(value));       }
   void              SetControlMarginCallDec(const long value)             { this.SetControlledValueDEC(ACCOUNT_PROP_MARGIN_SO_CALL,(double)::fabs(value));       }
   void              SetControlMarginCallLevel(const long value)           { this.SetControlledValueLEVEL(ACCOUNT_PROP_MARGIN_SO_CALL,(double)::fabs(value));     }
   double            GetValueChangedMarginCall(void)                 const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_MARGIN_SO_CALL);                  }
   bool              IsIncreasedMarginCall(void)                     const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_MARGIN_SO_CALL);                 }
   bool              IsDecreasedMarginCall(void)                     const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_MARGIN_SO_CALL);                 }
   
   //--- setting the controlled Margin StopOut (1) increase, (2) decrease value and (3) control level
   //--- getting (3) Margin StopOut level change value,
   //--- getting the flag of the Margin StopOut level change exceeding the (4) increase, (5) decrease value
   void              SetControlMarginStopOutInc(const long value)          { this.SetControlledValueINC(ACCOUNT_PROP_MARGIN_SO_SO,(double)::fabs(value));         }
   void              SetControlMarginStopOutDec(const long value)          { this.SetControlledValueDEC(ACCOUNT_PROP_MARGIN_SO_SO,(double)::fabs(value));         }
   void              SetControlMarginStopOutLevel(const long value)        { this.SetControlledValueLEVEL(ACCOUNT_PROP_MARGIN_SO_SO,(double)::fabs(value));       }
   double            GetValueChangedMarginStopOut(void)              const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_MARGIN_SO_SO);                    }
   bool              IsIncreasedMarginStopOut(void)                  const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_MARGIN_SO_SO);                   }
   bool              IsDecreasedMarginStopOut(void)                  const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_MARGIN_SO_SO);                   }
   
   //--- setting the controlled value of the growth of the reserved funds for providing the guarantee sum for pending orders (1) increase, (2) decrease
   //--- getting (3) the change value of the growth of the reserved funds for providing the guarantee sum for pending orders,
   //--- getting the flag of the growth change of the reserved funds for providing the guarantee sum for pending orders exceeding the (4) increase, (5) decrease value
   void              SetControlMarginInitialInc(const long value)          { this.SetControlledValueINC(ACCOUNT_PROP_MARGIN_INITIAL,(double)::fabs(value));       }
   void              SetControlMarginInitialDec(const long value)          { this.SetControlledValueDEC(ACCOUNT_PROP_MARGIN_INITIAL,(double)::fabs(value));       }
   void              SetControlMarginInitialLevel(const long value)        { this.SetControlledValueLEVEL(ACCOUNT_PROP_MARGIN_INITIAL,(double)::fabs(value));     }
   double            GetValueChangedMarginInitial(void)              const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_MARGIN_INITIAL);                  }
   bool              IsIncreasedMarginInitial(void)                  const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_MARGIN_INITIAL);                 }
   bool              IsDecreasedMarginInitial(void)                  const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_MARGIN_INITIAL);                 }
   
   //--- setting the controlled value of the growth of the reserved funds for providing the minimum sum for all open positions (1) increase, (2) decrease value and (3) control level
   //--- getting (3) the change value of the growth of the reserved funds for providing the minimum sum for all open positions,
   //--- getting the flag of the growth change of the reserved funds for providing the minimum sum for all open positions exceeding the (4) increase, (5) decrease value
   void              SetControlMarginMaintenanceInc(const long value)      { this.SetControlledValueINC(ACCOUNT_PROP_MARGIN_MAINTENANCE,(double)::fabs(value));   }
   void              SetControlMarginMaintenanceDec(const long value)      { this.SetControlledValueDEC(ACCOUNT_PROP_MARGIN_MAINTENANCE,(double)::fabs(value));   }
   void              SetControlMarginMaintenanceLevel(const long value)    { this.SetControlledValueLEVEL(ACCOUNT_PROP_MARGIN_MAINTENANCE,(double)::fabs(value)); }
   double            GetValueChangedMarginMaintenance(void)          const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_MARGIN_MAINTENANCE);              }
   bool              IsIncreasedMarginMaintenance(void)              const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_MARGIN_MAINTENANCE);             }

   bool              IsDecreasedMarginMaintenance(void)              const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_MARGIN_MAINTENANCE);             }
   
   //--- setting the controlled assets (1) increase, (2) decrease value and (3) control level
   //--- getting (3) the assets change value,
   //--- getting the flag of the assets change exceeding the (4) increase, (5) decrease value
   void              SetControlAssetsInc(const long value)                 { this.SetControlledValueINC(ACCOUNT_PROP_ASSETS,(double)::fabs(value));               }
   void              SetControlAssetsDec(const long value)                 { this.SetControlledValueDEC(ACCOUNT_PROP_ASSETS,(double)::fabs(value));               }
   void              SetControlAssetsLevel(const long value)               { this.SetControlledValueLEVEL(ACCOUNT_PROP_ASSETS,(double)::fabs(value));             }
   double            GetValueChangedAssets(void)                     const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_ASSETS);                          }
   bool              IsIncreasedAssets(void)                         const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_ASSETS);                         }
   bool              IsDecreasedAssets(void)                         const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_ASSETS);                         }
   
   //--- setting the controlled liabilities (1) increase, (2) decrease value and (3) control level
   //--- getting (3) the liabilities change value,
   //--- getting the flag of the liabilities change exceeding the (4) increase, (5) decrease value
   void              SetControlLiabilitiesInc(const long value)            { this.SetControlledValueINC(ACCOUNT_PROP_LIABILITIES,(double)::fabs(value));          }
   void              SetControlLiabilitiesDec(const long value)            { this.SetControlledValueDEC(ACCOUNT_PROP_LIABILITIES,(double)::fabs(value));          }
   void              SetControlLiabilitiesLevel(const long value)          { this.SetControlledValueLEVEL(ACCOUNT_PROP_LIABILITIES,(double)::fabs(value));        }
   double            GetValueChangedLiabilities(void)                const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_LIABILITIES);                     }
   bool              IsIncreasedLiabilities(void)                    const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_LIABILITIES);                    }
   bool              IsDecreasedLiabilities(void)                    const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_LIABILITIES);                    }
   
   //--- setting the controlled blocked commissions (1) increase, (2) decrease value and (3) control level in points
   //--- getting (3) the blocked commissions change value,
   //--- getting the flag of the blocked commissions change exceeding the (4) increase, (5) decrease value
   void              SetControlComissionBlockedInc(const long value)       { this.SetControlledValueINC(ACCOUNT_PROP_COMMISSION_BLOCKED,(double)::fabs(value));   }
   void              SetControlComissionBlockedDec(const long value)       { this.SetControlledValueDEC(ACCOUNT_PROP_COMMISSION_BLOCKED,(double)::fabs(value));   }
   void              SetControlComissionBlockedLevel(const long value)     { this.SetControlledValueLEVEL(ACCOUNT_PROP_COMMISSION_BLOCKED,(double)::fabs(value)); }
   double            GetValueChangedComissionBlocked(void)           const { return this.GetPropDoubleChangedValue(ACCOUNT_PROP_COMMISSION_BLOCKED);              }
   bool              IsIncreasedComissionBlocked(void)               const { return (bool)this.GetPropDoubleFlagINC(ACCOUNT_PROP_COMMISSION_BLOCKED);             }
   bool              IsDecreasedComissionBlocked(void)               const { return (bool)this.GetPropDoubleFlagDEC(ACCOUNT_PROP_COMMISSION_BLOCKED);             }

//+------------------------------------------------------------------+


在类构造函数中,首先指定数据数组大小初始化 CBaseObj 基准对象中的所有受控数据,然后在填充所有帐户对象属性之后,还要填写基准对象中的属性。 最后,更新 CBaseObj 基准对象中的所有帐户数据

//+------------------------------------------------------------------+
//| Constructor                                                      |
//+------------------------------------------------------------------+
CAccount::CAccount(void)
  {
//--- Initialize control data
   this.SetControlDataArraySizeLong(ACCOUNT_PROP_INTEGER_TOTAL);
   this.SetControlDataArraySizeDouble(ACCOUNT_PROP_DOUBLE_TOTAL);
   this.ResetChangesParams();
   this.ResetControlsParams();
  
//--- Save integer properties
   this.m_long_prop[ACCOUNT_PROP_LOGIN]                              = ::AccountInfoInteger(ACCOUNT_LOGIN);
   this.m_long_prop[ACCOUNT_PROP_TRADE_MODE]                         = ::AccountInfoInteger(ACCOUNT_TRADE_MODE);
   this.m_long_prop[ACCOUNT_PROP_LEVERAGE]                           = ::AccountInfoInteger(ACCOUNT_LEVERAGE);
   this.m_long_prop[ACCOUNT_PROP_LIMIT_ORDERS]                       = ::AccountInfoInteger(ACCOUNT_LIMIT_ORDERS);
   this.m_long_prop[ACCOUNT_PROP_MARGIN_SO_MODE]                     = ::AccountInfoInteger(ACCOUNT_MARGIN_SO_MODE);
   this.m_long_prop[ACCOUNT_PROP_TRADE_ALLOWED]                      = ::AccountInfoInteger(ACCOUNT_TRADE_ALLOWED);
   this.m_long_prop[ACCOUNT_PROP_TRADE_EXPERT]                       = ::AccountInfoInteger(ACCOUNT_TRADE_EXPERT);
   this.m_long_prop[ACCOUNT_PROP_MARGIN_MODE]                        = #ifdef __MQL5__::AccountInfoInteger(ACCOUNT_MARGIN_MODE) #else ACCOUNT_MARGIN_MODE_RETAIL_HEDGING #endif ;
   this.m_long_prop[ACCOUNT_PROP_CURRENCY_DIGITS]                    = #ifdef __MQL5__::AccountInfoInteger(ACCOUNT_CURRENCY_DIGITS) #else 2 #endif ;
   this.m_long_prop[ACCOUNT_PROP_SERVER_TYPE]                        = (::TerminalInfoString(TERMINAL_NAME)=="MetaTrader 5" ? 5 : 4);
   
//--- Save real properties
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_BALANCE)]          = ::AccountInfoDouble(ACCOUNT_BALANCE);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_CREDIT)]           = ::AccountInfoDouble(ACCOUNT_CREDIT);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_PROFIT)]           = ::AccountInfoDouble(ACCOUNT_PROFIT);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_EQUITY)]           = ::AccountInfoDouble(ACCOUNT_EQUITY);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN)]           = ::AccountInfoDouble(ACCOUNT_MARGIN);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_FREE)]      = ::AccountInfoDouble(ACCOUNT_MARGIN_FREE);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_LEVEL)]     = ::AccountInfoDouble(ACCOUNT_MARGIN_LEVEL);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_SO_CALL)]   = ::AccountInfoDouble(ACCOUNT_MARGIN_SO_CALL);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_SO_SO)]     = ::AccountInfoDouble(ACCOUNT_MARGIN_SO_SO);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_INITIAL)]   = ::AccountInfoDouble(ACCOUNT_MARGIN_INITIAL);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_MAINTENANCE)]=::AccountInfoDouble(ACCOUNT_MARGIN_MAINTENANCE);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_ASSETS)]           = ::AccountInfoDouble(ACCOUNT_ASSETS);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_LIABILITIES)]      = ::AccountInfoDouble(ACCOUNT_LIABILITIES);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_COMMISSION_BLOCKED)]=::AccountInfoDouble(ACCOUNT_COMMISSION_BLOCKED);
   
//--- Save string properties
   this.m_string_prop[this.IndexProp(ACCOUNT_PROP_NAME)]             = ::AccountInfoString(ACCOUNT_NAME);
   this.m_string_prop[this.IndexProp(ACCOUNT_PROP_SERVER)]           = ::AccountInfoString(ACCOUNT_SERVER);
   this.m_string_prop[this.IndexProp(ACCOUNT_PROP_CURRENCY)]         = ::AccountInfoString(ACCOUNT_CURRENCY);
   this.m_string_prop[this.IndexProp(ACCOUNT_PROP_COMPANY)]          = ::AccountInfoString(ACCOUNT_COMPANY);

//--- Account object name
   this.m_name=TextByLanguage("Счёт ","Account ")+(string)this.Login()+": "+this.Name()+" ("+this.Company()+")";
   this.m_type=COLLECTION_ACCOUNT_ID;

//--- Filling in the current account data
   for(int i=0;i<ACCOUNT_PROP_INTEGER_TOTAL;i++)
      this.m_long_prop_event[i][3]=this.m_long_prop[i];
   for(int i=0;i<ACCOUNT_PROP_DOUBLE_TOTAL;i++)
      this.m_double_prop_event[i][3]=this.m_double_prop[i];

//--- Update the base object data and search for changes
   CBaseObj::Refresh();
  }
//+-------------------------------------------------------------------+


在类的主体之外,为更新帐户数据的虚方法编写实现:

//+------------------------------------------------------------------+
//| Update all account data                                          |
//+------------------------------------------------------------------+
void CAccount::Refresh(void)
  {
//--- Initialize event data
   this.m_is_event=false;
   this.m_hash_sum=0;
//--- Update integer properties
   this.m_long_prop[ACCOUNT_PROP_LOGIN]                                 = ::AccountInfoInteger(ACCOUNT_LOGIN);
   this.m_long_prop[ACCOUNT_PROP_TRADE_MODE]                            = ::AccountInfoInteger(ACCOUNT_TRADE_MODE);
   this.m_long_prop[ACCOUNT_PROP_LEVERAGE]                              = ::AccountInfoInteger(ACCOUNT_LEVERAGE);
   this.m_long_prop[ACCOUNT_PROP_LIMIT_ORDERS]                          = ::AccountInfoInteger(ACCOUNT_LIMIT_ORDERS);
   this.m_long_prop[ACCOUNT_PROP_MARGIN_SO_MODE]                        = ::AccountInfoInteger(ACCOUNT_MARGIN_SO_MODE);
   this.m_long_prop[ACCOUNT_PROP_TRADE_ALLOWED]                         = ::AccountInfoInteger(ACCOUNT_TRADE_ALLOWED);
   this.m_long_prop[ACCOUNT_PROP_TRADE_EXPERT]                          = ::AccountInfoInteger(ACCOUNT_TRADE_EXPERT);
   this.m_long_prop[ACCOUNT_PROP_MARGIN_MODE]                           = #ifdef __MQL5__::AccountInfoInteger(ACCOUNT_MARGIN_MODE) #else ACCOUNT_MARGIN_MODE_RETAIL_HEDGING #endif ;
   this.m_long_prop[ACCOUNT_PROP_CURRENCY_DIGITS]                       = #ifdef __MQL5__::AccountInfoInteger(ACCOUNT_CURRENCY_DIGITS) #else 2 #endif ;
   this.m_long_prop[ACCOUNT_PROP_SERVER_TYPE]                           = (::TerminalInfoString(TERMINAL_NAME)=="MetaTrader 5" ? 5 : 4);
   
//--- Update real properties
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_BALANCE)]             = ::AccountInfoDouble(ACCOUNT_BALANCE);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_CREDIT)]              = ::AccountInfoDouble(ACCOUNT_CREDIT);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_PROFIT)]              = ::AccountInfoDouble(ACCOUNT_PROFIT);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_EQUITY)]              = ::AccountInfoDouble(ACCOUNT_EQUITY);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN)]              = ::AccountInfoDouble(ACCOUNT_MARGIN);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_FREE)]         = ::AccountInfoDouble(ACCOUNT_MARGIN_FREE);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_LEVEL)]        = ::AccountInfoDouble(ACCOUNT_MARGIN_LEVEL);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_SO_CALL)]      = ::AccountInfoDouble(ACCOUNT_MARGIN_SO_CALL);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_SO_SO)]        = ::AccountInfoDouble(ACCOUNT_MARGIN_SO_SO);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_INITIAL)]      = ::AccountInfoDouble(ACCOUNT_MARGIN_INITIAL);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_MARGIN_MAINTENANCE)]  =::AccountInfoDouble(ACCOUNT_MARGIN_MAINTENANCE);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_ASSETS)]              = ::AccountInfoDouble(ACCOUNT_ASSETS);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_LIABILITIES)]         = ::AccountInfoDouble(ACCOUNT_LIABILITIES);
   this.m_double_prop[this.IndexProp(ACCOUNT_PROP_COMMISSION_BLOCKED)]  =::AccountInfoDouble(ACCOUNT_COMMISSION_BLOCKED);

//--- Filling in the current account data in the base object
   for(int i=0;i<ACCOUNT_PROP_INTEGER_TOTAL;i++)
      this.m_long_prop_event[i][3]=this.m_long_prop[i];
   for(int i=0;i<ACCOUNT_PROP_DOUBLE_TOTAL;i++)
      this.m_double_prop_event[i][3]=this.m_double_prop[i];
   
//--- Update the base object data and search for changes
   CBaseObj::Refresh();
   this.CheckEvents();
  }
//+------------------------------------------------------------------+


此处,帐户事件标志被重置,并且哈希和被置为零(很有可能,在随后版本中,若事实证明其他基于 CBaseObj 的对象不需要它,则哈希和将被删除)。
接下来,填充所有帐户对象属性,填写基准对象中的帐户数据(类似于类构造函数中的内容),并且更新基准对象的方法调用 。 在基准对象中执行更新当前数据,并搜索对象属性值。 如果搜索到的事件变化值超出预设值,则会生成对象基准事件。
接下来,调用父类的 CheckEvents() 方法,在 CBaseObj 对象基准事件列表中检查基准事件是否存在。 如果存在事件,则该方法将创建其衍生的事件列表。 在这种情况下,这是帐户事件的列表。

CAccount 类已得到改进。

现在,我们在帐户集合类中进行修改。
打开 \MQL5\Include\DoEasy\Collections\AccountsCollection.mqh 文件,并进行必要的修改。

删除所有不必要的元素:

//+------------------------------------------------------------------+
//| Account collection                                               |
//+------------------------------------------------------------------+
class CAccountsCollection : public CBaseObj
  {
private:
   struct MqlDataAccount
     {
      //--- Account integer properties
      long           login;                  // ACCOUNT_LOGIN (Account number)
      long           leverage;               // ACCOUNT_LEVERAGE (Leverage)
      int            limit_orders;           // ACCOUNT_LIMIT_ORDERS (Maximum allowed number of active pending orders)
      bool           trade_allowed;          // ACCOUNT_TRADE_ALLOWED (Permission to trade for the current account from the server side)
      bool           trade_expert;           // ACCOUNT_TRADE_EXPERT (Permission to trade for an EA from the server side)
      //--- Account real properties
      double         balance;                // ACCOUNT_BALANCE (Account balance in a deposit currency)
      double         credit;                 // ACCOUNT_CREDIT (Credit in a deposit currency)
      double         profit;                 // ACCOUNT_PROFIT (Current profit on an account in the account currency)
      double         equity;                 // ACCOUNT_EQUITY (Equity on an account in the deposit currency)
      double         margin;                 // ACCOUNT_MARGIN (Reserved margin on an account in a deposit currency)
      double         margin_free;            // ACCOUNT_MARGIN_FREE (Free funds available for opening a position in a deposit currency)
      double         margin_level;           // ACCOUNT_MARGIN_LEVEL (Margin level on an account in %)
      double         margin_so_call;         // ACCOUNT_MARGIN_SO_CALL (MarginCall)
      double         margin_so_so;           // ACCOUNT_MARGIN_SO_SO (StopOut)
      double         margin_initial;         // ACCOUNT_MARGIN_INITIAL (Funds reserved on an account to ensure a guarantee amount for all pending orders)
      double         margin_maintenance;     // ACCOUNT_MARGIN_MAINTENANCE (Funds reserved on an account to ensure a minimum amount for all open positions)
      double         assets;                 // ACCOUNT_ASSETS (Current assets on an account)
      double         liabilities;            // ACCOUNT_LIABILITIES (Current liabilities on an account)
      double         comission_blocked;      // ACCOUNT_COMMISSION_BLOCKED (Current sum of blocked commissions on an account)
     };
   MqlDataAccount    m_struct_curr_account;              // Account current data
   MqlDataAccount    m_struct_prev_account;              // Account previous data
   
   string            m_symbol;                           // Current symbol
   CListObj          m_list_accounts;                    // Account object list
   int               m_index_current;                    // Index of an account object featuring the current account data
   //--- Leverage
   long              m_changed_leverage_value;           // Leverage change value
   bool              m_is_change_leverage_inc;           // Leverage increase flag
   bool              m_is_change_leverage_dec;           // Leverage decrease flag
   //--- Number of active pending orders
   int               m_changed_limit_orders_value;       // Change value of the maximum allowed number of active pending orders
   bool              m_is_change_limit_orders_inc;       // Increase flag of the maximum allowed number of active pending orders
   bool              m_is_change_limit_orders_dec;       // Decrease flag of the maximum allowed number of active pending orders
   //--- Trading on an account
   bool              m_is_change_trade_allowed_on;       // The flag allowing to trade for the current account from the server side
   bool              m_is_change_trade_allowed_off;      // The flag prohibiting trading for the current account from the server side
   //--- Auto trading on an account
   bool              m_is_change_trade_expert_on;        // The flag allowing to trade for an EA from the server side
   bool              m_is_change_trade_expert_off;       // The flag prohibiting trading for an EA from the server side
   //--- Balance
   double            m_control_balance_inc;              // Tracked balance increase value
   double            m_control_balance_dec;              // Tracked balance decrease value
   double            m_changed_balance_value;            // Balance change value
   bool              m_is_change_balance_inc;            // The flag of the balance change exceeding the increase value
   bool              m_is_change_balance_dec;            // The flag of the balance change exceeding the decrease value
   //--- Credit
   double            m_changed_credit_value;             // Credit change value
   bool              m_is_change_credit_inc;             // Credit increase flag
   bool              m_is_change_credit_dec;             // Credit decrease flag
   //--- Profit
   double            m_control_profit_inc;               // Controlled profit growth value
   double            m_control_profit_dec;               // Controlled profit decrease value
   double            m_changed_profit_value;             // Profit change value
   bool              m_is_change_profit_inc;             // The flag of the profit change exceeding the increase value
   bool              m_is_change_profit_dec;             // The flag of the profit change exceeding the decrease value
   //--- Funds (equity)
   double            m_control_equity_inc;               // Controlled funds increase value
   double            m_control_equity_dec;               // Controlled funds decrease value
   double            m_changed_equity_value;             // Funds change value
   bool              m_is_change_equity_inc;             // The flag of the funds change exceeding the increase value
   bool              m_is_change_equity_dec;             // The flag of the funds change exceeding the decrease value
   //--- Margin
   double            m_control_margin_inc;               // Controlled margin increase value
   double            m_control_margin_dec;               // Controlled margin decrease value
   double            m_changed_margin_value;             // Margin change value
   bool              m_is_change_margin_inc;             // The flag of the margin change exceeding the increase value
   bool              m_is_change_margin_dec;             // The flag of the margin change exceeding the decrease value
   //--- Free margin
   double            m_control_margin_free_inc;          // Controlled free margin increase value
   double            m_control_margin_free_dec;          // Controlled free margin decrease value
   double            m_changed_margin_free_value;        // Free margin change valu
   bool              m_is_change_margin_free_inc;        // The flag of the free margin change exceeding the increase value
   bool              m_is_change_margin_free_dec;        // The flag of the free margin change exceeding the decrease value
   //--- Margin level
   double            m_control_margin_level_inc;         // Controlled margin level increase value
   double            m_control_margin_level_dec;         // Controlled margin level decrease value
   double            m_changed_margin_level_value;       // Margin level change value
   bool              m_is_change_margin_level_inc;       // The flag of the free margin change exceeding the increase value
   bool              m_is_change_margin_level_dec;       // The flag of the margin level change exceeding the decrease value
   //--- Margin Call
   double            m_changed_margin_so_call_value;     // Margin Call level change value
   bool              m_is_change_margin_so_call_inc;     // Margin Call level increase value
   bool              m_is_change_margin_so_call_dec;     // Margin Call level decrease value
   //--- MarginStopOut
   double            m_changed_margin_so_so_value;       // Margin StopOut level change value
   bool              m_is_change_margin_so_so_inc;       // Margin StopOut level increase flag
   bool              m_is_change_margin_so_so_dec;       // Margin StopOut level decrease flag
   //--- Guarantee sum for pending orders
   double            m_control_margin_initial_inc;       // Controlled increase value of the reserved funds for providing the guarantee sum for pending orders
   double            m_control_margin_initial_dec;       // Controlled decrease value of the reserved funds for providing the guarantee sum for pending orders
   double            m_changed_margin_initial_value;     // The change value of the reserved funds for providing the guarantee sum for pending orders
   bool              m_is_change_margin_initial_inc;     // The flag of the reserved funds for providing the guarantee sum for pending orders exceeding the increase value
   bool              m_is_change_margin_initial_dec;     // The flag of the reserved funds for providing the guarantee sum for pending orders exceeding the decrease value
   //--- Guarantee sum for open positions
   double            m_control_margin_maintenance_inc;   // Controlled increase value of the funds reserved on an account to ensure a minimum amount for all open positions
   double            m_control_margin_maintenance_dec;   // Controlled decrease value of the funds reserved on an account to ensure a minimum amount for all open positions
   double            m_changed_margin_maintenance_value; // The change value of the funds reserved on an account to ensure a minimum amount for all open positions
   bool              m_is_change_margin_maintenance_inc; // The flag of the funds reserved on an account to ensure a minimum amount for all open positions exceeding the increase value
   bool              m_is_change_margin_maintenance_dec; // The flag of the funds reserved on an account to ensure a minimum amount for all open positions exceeding the decrease value
   //--- Assets
   double            m_control_assets_inc;               // Controlled assets increase value
   double            m_control_assets_dec;               // Controlled assets decrease value
   double            m_changed_assets_value;             // Assets change value
   bool              m_is_change_assets_inc;             // The flag of the assets change exceeding the increase value
   bool              m_is_change_assets_dec;             // The flag of the assets change exceeding the decrease value
   //--- Liabilities
   double            m_control_liabilities_inc;          // Controlled liabilities increase value
   double            m_control_liabilities_dec;          // Controlled liabilities decrease value
   double            m_changed_liabilities_value;        // Liabilities change values
   bool              m_is_change_liabilities_inc;        // The flag of the liabilities change exceeding the increase value
   bool              m_is_change_liabilities_dec;        // The flag of the liabilities change exceeding the decrease value
   //--- Blocked commissions
   double            m_control_comission_blocked_inc;    // Controlled blocked commissions increase value
   double            m_control_comission_blocked_dec;    // Controlled blocked commissions decrease value
   double            m_changed_comission_blocked_value;  // Blocked commissions changed value
   bool              m_is_change_comission_blocked_inc;  // The flag of the blocked commissions change exceeding the increase value
   bool              m_is_change_comission_blocked_dec;  // The flag of the blocked commissions change exceeding the decrease value
   
//--- Initialize the variables of (1) tracked, (2) controlled account data
   void              InitChangesParams(void);
   void              InitControlsParams(void);
//--- Set an event type and fill in the event list
   virtual void      SetTypeEvent(void);
//--- Write the current account data to the account object properties
   void              SetAccountsParams(CAccount* account);
//--- Check the account object presence in the collection list
   bool              IsPresent(CAccount* account);
//--- Find and return the account object index with the current account data
   int               Index(void);
public:
//--- Return the full account collection list "as is"
   CArrayObj        *GetList(void)                                                                          { return &this.m_list_accounts;                                         }
//--- Return the list by selected (1) integer, (2) real and (3) string properties meeting the compared criterion
   CArrayObj        *GetList(ENUM_ACCOUNT_PROP_INTEGER property,long value,ENUM_COMPARER_TYPE mode=EQUAL)   { return CSelect::ByAccountProperty(this.GetList(),property,value,mode);}
   CArrayObj        *GetList(ENUM_ACCOUNT_PROP_DOUBLE property,double value,ENUM_COMPARER_TYPE mode=EQUAL)  { return CSelect::ByAccountProperty(this.GetList(),property,value,mode);}
   CArrayObj        *GetList(ENUM_ACCOUNT_PROP_STRING property,string value,ENUM_COMPARER_TYPE mode=EQUAL)  { return CSelect::ByAccountProperty(this.GetList(),property,value,mode);}
//--- Return (1) the current account object index and (2) event ID by its number in the list
   int               IndexCurrentAccount(void)                                                        const { return this.m_index_current;                                          }
   ENUM_ACCOUNT_EVENT GetEventID(const int shift=WRONG_VALUE,const bool check_out=true);
//--- (1) Set and (2) return the current symbol
   void              SetSymbol(const string symbol)                                                         { this.m_symbol=symbol;                                  }
   string            GetSymbol(void)                                                                  const { return this.m_symbol;                                  }

//--- Constructor, destructor
                     CAccountsCollection();
                    ~CAccountsCollection();
//--- Add the account object to the list
   bool              AddToList(CAccount* account);
//--- (1) Save account objects from the list to the files
//--- (2) Save account objects from the files to the list
   bool              SaveObjects(void);
   bool              LoadObjects(void);
//--- Return the account event description
   string            EventDescription(const ENUM_ACCOUNT_EVENT event);
//--- Update the current account data
   virtual void      Refresh(void);
   
//--- Get and set the parameters of tracked changes
   //--- Leverage:
   //--- (1) Leverage change value, (2) Leverage increase flag, (3) Leverage decrease flag
   long              GetValueChangedLeverage(void)                                                    const { return this.m_changed_leverage_value;                  }
   bool              IsIncreaseLeverage(void)                                                         const { return this.m_is_change_leverage_inc;                  }
   bool              IsDecreaseLeverage(void)                                                         const { return this.m_is_change_leverage_dec;                  }
   //--- Number of active pending orders:
   //--- (1) Change value, (2) Increase flag, (3) Decrease flag
   int               GetValueChangedLimitOrders(void)                                                 const { return this.m_changed_limit_orders_value;              }
   bool              IsIncreaseLimitOrders(void)                                                      const { return this.m_is_change_limit_orders_inc;              }
   bool              IsDecreaseLimitOrders(void)                                                      const { return this.m_is_change_limit_orders_dec;              }
   //--- Trading on an account:
   //--- (1) The flag allowing to trade for the current account, (2) The flag prohibiting trading for the current account from the server side
   bool              IsOnTradeAllowed(void)                                                           const { return this.m_is_change_trade_allowed_on;              }
   bool              IsOffTradeAllowed(void)                                                          const { return this.m_is_change_trade_allowed_off;             }
   //--- Auto trading on an account:
   //--- (1) The flag allowing to trade for an EA, (2) The flag prohibiting trading for an EA from the server side
   bool              IsOnTradeExpert(void)                                                            const { return this.m_is_change_trade_expert_on;               }
   bool              IsOffTradeExpert(void)                                                           const { return this.m_is_change_trade_expert_off;              }
   //--- Balance:
   //--- setting the controlled value of the balance (1) increase, (2) decrease
   //--- getting (3) the balance change value,
   //--- getting the flag of the balance change exceeding the (4) increase value, (5) decrease value
   void              SetControlBalanceInc(const double value)                                               { this.m_control_balance_inc=::fabs(value);              }
   void              SetControlBalanceDec(const double value)                                               { this.m_control_balance_dec=::fabs(value);              }
   double            GetValueChangedBalance(void)                                                     const { return this.m_changed_balance_value;                   }
   bool              IsIncreaseBalance(void)                                                          const { return this.m_is_change_balance_inc;                   }
   bool              IsDecreaseBalance(void)                                                          const { return this.m_is_change_balance_dec;                   }
   //--- Credit:
   //--- getting (1) the credit change value, (2) credit increase flag, (3) decrease flag
   double            GetValueChangedCredit(void)                                                      const { return this.m_changed_credit_value;                    }
   bool              IsIncreaseCredit(void)                                                           const { return this.m_is_change_credit_inc;                    }
   bool              IsDecreaseCredit(void)                                                           const { return this.m_is_change_credit_dec;                    }
   //--- Profit:
   //--- setting the controlled profit (1) increase, (2) decrease value
   //--- getting the (3) profit change value,
   //--- getting the flag of the profit change exceeding the (4) increase, (5) decrease value
   void              SetControlProfitInc(const double value)                                                { this.m_control_profit_inc=::fabs(value);               }
   void              SetControlProfitDec(const double value)                                                { this.m_control_profit_dec=::fabs(value);               }
   double            GetValueChangedProfit(void)                                                      const { return this.m_changed_profit_value;                    }
   bool              IsIncreaseProfit(void)                                                           const { return this.m_is_change_profit_inc;                    }
   bool              IsDecreaseProfit(void)                                                           const { return this.m_is_change_profit_dec;                    }
   //--- Equity:
   //--- setting the controlled equity (1) increase, (2) decrease value
   //--- getting the (3) equity change value,
   //--- getting the flag of the equity change exceeding the (4) increase, (5) decrease value
   void              SetControlEquityInc(const double value)                                                { this.m_control_equity_inc=::fabs(value);               }
   void              SetControlEquityDec(const double value)                                                { this.m_control_equity_dec=::fabs(value);               }
   double            GetValueChangedEquity(void)                                                      const { return this.m_changed_equity_value;                    }
   bool              IsIncreaseEquity(void)                                                           const { return this.m_is_change_equity_inc;                    }
   bool              IsDecreaseEquity(void)                                                           const { return this.m_is_change_equity_dec;                    }
   //--- Margin:
   //--- setting the controlled margin (1) increase, (2) decrease value
   //--- getting the (3) margin change value,
   //--- getting the flag of the margin change exceeding the (4) increase, (5) decrease value
   void              SetControlMarginInc(const double value)                                                { this.m_control_margin_inc=::fabs(value);               }
   void              SetControlMarginDec(const double value)                                                { this.m_control_margin_dec=::fabs(value);               }
   double            GetValueChangedMargin(void)                                                      const { return this.m_changed_margin_value;                    }
   bool              IsIncreaseMargin(void)                                                           const { return this.m_is_change_margin_inc;                    }
   bool              IsDecreaseMargin(void)                                                           const { return this.m_is_change_margin_dec;                    }
   //--- Free margin:
   //--- setting the controlled free margin (1) increase, (2) decrease value
   //--- getting the (3) free margin change value,
   //--- getting the flag of the free margin change exceeding the (4) increase, (5) decrease value
   void              SetControlMarginFreeInc(const double value)                                            { this.m_control_margin_free_inc=::fabs(value);          }
   void              SetControlMarginFreeDec(const double value)                                            { this.m_control_margin_free_dec=::fabs(value);          }
   double            GetValueChangedMarginFree(void)                                                  const { return this.m_changed_margin_free_value;               }
   bool              IsIncreaseMarginFree(void)                                                       const { return this.m_is_change_margin_free_inc;               }
   bool              IsDecreaseMarginFree(void)                                                       const { return this.m_is_change_margin_free_dec;               }
   //--- Margin level:
   //--- setting the controlled margin level (1) increase, (2) decrease value
   //--- getting the (3) margin level change value,
   //--- getting the flag of the margin level change exceeding the (4) increase, (5) decrease value
   void              SetControlMarginLevelInc(const double value)                                           { this.m_control_margin_level_inc=::fabs(value);         }
   void              SetControlMarginLevelDec(const double value)                                           { this.m_control_margin_level_dec=::fabs(value);         }
   double            GetValueChangedMarginLevel(void)                                                 const { return this.m_changed_margin_level_value;              }
   bool              IsIncreaseMarginLevel(void)                                                      const { return this.m_is_change_margin_level_inc;              }
   bool              IsDecreaseMarginLevel(void)                                                      const { return this.m_is_change_margin_level_dec;              }
   //--- Margin Call:
   //--- getting (1) Margin Call change value, (2) increase flag, (3) decrease flag
   double            GetValueChangedMarginCall(void)                                                  const { return this.m_changed_margin_so_call_value;            }
   bool              IsIncreaseMarginCall(void)                                                       const { return this.m_is_change_margin_so_call_inc;            }
   bool              IsDecreaseMarginCall(void)                                                       const { return this.m_is_change_margin_so_call_dec;            }
   //--- Margin StopOut:
   //--- getting (1) Margin StopOut change value, (2) increase flag, (3) decrease flag
   double            GetValueChangedMarginStopOut(void)                                               const { return this.m_changed_margin_so_so_value;              }
   bool              IsIncreaseMarginStopOut(void)                                                    const { return this.m_is_change_margin_so_so_inc;              }
   bool              IsDecreasMarginStopOute(void)                                                    const { return this.m_is_change_margin_so_so_dec;              }
   //--- Guarantee sum for pending orders:
   //--- setting the controlled value of the reserved funds for providing the guarantee sum for pending orders (1) increase, (2) decrease
   //--- getting the change value of the (3) reserved funds for providing the guarantee sum,
   //--- getting the flag of the reserved funds for providing the guarantee sum for pending orders exceeding the (4) increase, (5) decrease value
   void              SetControlMarginInitialInc(const double value)                                         { this.m_control_margin_initial_inc=::fabs(value);       }
   void              SetControlMarginInitialDec(const double value)                                         { this.m_control_margin_initial_dec=::fabs(value);       }
   double            GetValueChangedMarginInitial(void)                                               const { return this.m_changed_margin_initial_value;            }
   bool              IsIncreaseMarginInitial(void)                                                    const { return this.m_is_change_margin_initial_inc;            }
   bool              IsDecreaseMarginInitial(void)                                                    const { return this.m_is_change_margin_initial_dec;            }
   //--- Guarantee sum for open positions:
   //--- setting the controlled value of the funds reserved on an account to ensure a minimum amount for all open positions (1) increase, (2) decrease
   //--- getting the change value of the (3) reserved funds for providing the guarantee sum,
   //--- getting the flag of the reserved funds for providing the guarantee sum for pending orders exceeding the (4) increase, (5) decrease value
   void              SetControlMarginMaintenanceInc(const double value)                                     { this.m_control_margin_maintenance_inc=::fabs(value);   }
   void              SetControlMarginMaintenanceDec(const double value)                                     { this.m_control_margin_maintenance_dec=::fabs(value);   }
   double            GetValueChangedMarginMaintenance(void)                                           const { return this.m_changed_margin_maintenance_value;        }
   bool              IsIncreaseMarginMaintenance(void)                                                const { return this.m_is_change_margin_maintenance_inc;        }
   bool              IsDecreaseMarginMaintenance(void)                                                const { return this.m_is_change_margin_maintenance_dec;        }
   //--- Assets:
   //--- setting the controlled value of the assets (1) increase, (2) decrease
   //--- getting (3) the assets change value,
   //--- getting the flag of the change exceeding the (4) increase, (5) decrease value
   void              SetControlAssetsInc(const double value)                                                { this.m_control_assets_inc=::fabs(value);               }
   void              SetControlAssetsDec(const double value)                                                { this.m_control_assets_dec=::fabs(value);               }
   double            GetValueChangedAssets(void)                                                      const { return this.m_changed_assets_value;                    }
   bool              IsIncreaseAssets(void)                                                           const { return this.m_is_change_assets_inc;                    }
   bool              IsDecreaseAssets(void)                                                           const { return this.m_is_change_assets_dec;                    }
   //--- Liabilities:
   //--- setting the controlled value of the liabilities (1) increase, (2) decrease
   //--- getting (3) the liabilities change value,
   //--- getting the flag of the liabilities change exceeding the (4) increase, (5) decrease value
   void              SetControlLiabilitiesInc(const double value)                                           { this.m_control_liabilities_inc=::fabs(value);          }
   void              SetControlLiabilitiesDec(const double value)                                           { this.m_control_liabilities_dec=::fabs(value);          }
   double            GetValueChangedLiabilities(void)                                                 const { return this.m_changed_liabilities_value;               }
   bool              IsIncreaseLiabilities(void)                                                      const { return this.m_is_change_liabilities_inc;               }
   bool              IsDecreaseLiabilities(void)                                                      const { return this.m_is_change_liabilities_dec;               }
   //--- Blocked commissions:
   //--- setting the controlled blocked commissions (1) increase, (2) decrease value
   //--- getting (3) the blocked commissions change value,
   //--- getting the flag of the blocked commissions change exceeding the (4) increase, (5) decrease value
   void              SetControlComissionBlockedInc(const double value)                                      { this.m_control_comission_blocked_inc=::fabs(value);    }
   void              SetControlComissionBlockedDec(const double value)                                      { this.m_control_comission_blocked_dec=::fabs(value);    }
   double            GetValueChangedComissionBlocked(void)                                            const { return this.m_changed_comission_blocked_value;         }
   bool              IsIncreaseComissionBlocked(void)                                                 const { return this.m_is_change_comission_blocked_inc;         }
   bool              IsDecreaseComissionBlocked(void)                                                 const { return this.m_is_change_comission_blocked_dec;         }
  };
//+------------------------------------------------------------------+


修改方法的类型,并添加一些必要的变量方法的声明:

//+------------------------------------------------------------------+
//| Account collection                                               |
//+------------------------------------------------------------------+
class CAccountsCollection : public CBaseObj
  {
private:
   string            m_symbol;                                    // Current symbol
   CListObj          m_list_accounts;                             // Account object list
   int               m_index_current;                             // Index of an account object featuring the current account data
   int               m_last_event;                                // The last event

//--- Check the account object presence in the collection list
   bool              IsPresent(CAccount* account);
//--- Find and return the account object index with the current account data
   int               Index(void);
public:
//--- Return the full account collection list "as is"
   CArrayObj        *GetList(void)                                                                          { return &this.m_list_accounts;                                         }
//--- Return the list by selected (1) integer, (2) real and (3) string properties meeting the compared criterion
   CArrayObj        *GetList(ENUM_ACCOUNT_PROP_INTEGER property,long value,ENUM_COMPARER_TYPE mode=EQUAL)   { return CSelect::ByAccountProperty(this.GetList(),property,value,mode);}
   CArrayObj        *GetList(ENUM_ACCOUNT_PROP_DOUBLE property,double value,ENUM_COMPARER_TYPE mode=EQUAL)  { return CSelect::ByAccountProperty(this.GetList(),property,value,mode);}
   CArrayObj        *GetList(ENUM_ACCOUNT_PROP_STRING property,string value,ENUM_COMPARER_TYPE mode=EQUAL)  { return CSelect::ByAccountProperty(this.GetList(),property,value,mode);}
//--- Return (1) the current account object index and (2) event ID by its number in the list
   int               IndexCurrentAccount(void)                                                        const { return this.m_index_current;                                          }
   int               GetEventID(const int shift=WRONG_VALUE,const bool check_out=true);
//--- (1) Set and (2) return the current symbol
   void              SetSymbol(const string symbol)                                                         { this.m_symbol=symbol;                                  }
   string            GetSymbol(void)                                                                  const { return this.m_symbol;                                  }
//--- (1) Update data, (2) working with events of the current account
   virtual void      Refresh(void);
   void              RefreshAndEventsControl(void);

//--- Constructor, destructor
                     CAccountsCollection();
                    ~CAccountsCollection();
//--- Add the account object to the list
   bool              AddToList(CAccount* account);
//--- (1) Save account objects from the list to the files
//--- (2) Save account objects from the files to the list
   bool              SaveObjects(void);
   bool              LoadObjects(void);
  };


从类构造函数中删除两个已删除方法的调用,并清除结构:

//+------------------------------------------------------------------+
//| Constructor                                                      |
//+------------------------------------------------------------------+
CAccountsCollection::CAccountsCollection(void) : m_symbol(::Symbol())
  {
   this.m_list_accounts.Clear();
   this.m_list_accounts.Sort(SORT_BY_ACCOUNT_LOGIN);
   this.m_list_accounts.Type(COLLECTION_ACCOUNT_ID);
   ::ZeroMemory(this.m_struct_prev_account);
   ::ZeroMemory(this.m_tick);
   this.InitChangesParams();
   this.InitControlsParams();
//--- Create the folder for storing account files
   this.SetSubFolderName("Accounts");
   ::ResetLastError();
   if(!::FolderCreate(this.m_folder_name,FILE_COMMON))
      ::Print(DFUN,TextByLanguage("Не удалось создать папку хранения файлов. Ошибка ","Could not create file storage folder. Error "),::GetLastError());
//--- Create the current account object and add it to the list
   CAccount* account=new CAccount();
   if(account!=NULL)
     {
      if(!this.AddToList(account))
        {
         ::Print(DFUN_ERR_LINE,TextByLanguage("Ошибка. Не удалось добавить текущий объект-аккаунт в список-коллекцию.","Error. Failed to add current account object to collection list."));
         delete account;
        }
      else
         account.PrintShort();
     }
   else
      ::Print(DFUN,TextByLanguage("Ошибка. Не удалось создать объект-аккаунт с данными текущего счёта.","Error. Failed to create an account object with current account data."));

//--- Download account objects from the files to the collection
   this.LoadObjects();
//--- Save the current account index
   this.m_index_current=this.Index();
  }
//+------------------------------------------------------------------+


现在,所有这些变量、结构和方法都已替换为现成的基准对象功能。 无需为衍生类再次重新创建它们。 还应该在帐户数据更新方法中剔除事件功能:

//+------------------------------------------------------------------+
//| Update the current account data                                  |
//+------------------------------------------------------------------+
void CAccountsCollection::Refresh(void)
  {
   ::ResetLastError();
   if(!::SymbolInfoTick(::Symbol(),this.m_tick))
     {
      this.m_global_error=::GetLastError();
      return;
     }
   if(this.m_index_current==WRONG_VALUE)
      return;
   CAccount* account=this.m_list_accounts.At(this.m_index_current);
   if(account==NULL)
      return;
//--- Prepare event data
   this.m_is_event=false;
   ::ZeroMemory(this.m_struct_curr_account);
   this.m_hash_sum=0;
   this.SetAccountsParams(account);
//--- First launch
   if(!this.m_struct_prev_account.login)
     {
      this.m_struct_prev_account=this.m_struct_curr_account;
      this.m_hash_sum_prev=this.m_hash_sum;
      return;
     }
//--- If the account hash sum changed
   if(this.m_hash_sum!=this.m_hash_sum_prev)
     {
      this.m_list_events.Clear();
      this.m_event_code=this.SetEventCode();
      this.SetTypeEvent();
      int total=this.m_list_events.Total();
      if(total>0)
        {
         this.m_is_event=true;
         for(int i=0;i<total;i++)
           {
            CEventBaseObj *event=this.GetEvent(i,false);
            if(event==NULL)
               continue;
            ENUM_ACCOUNT_EVENT event_id=(ENUM_ACCOUNT_EVENT)event.ID();
            if(event_id==ACCOUNT_EVENT_NO_EVENT)
               continue;
            long lparam=event.LParam();
            double dparam=event.DParam();
            string sparam=event.SParam();
            ::EventChartCustom(this.m_chart_id,(ushort)event_id,lparam,dparam,sparam);
           }
        }
      this.m_hash_sum_prev=this.m_hash_sum;
     }
  }
//+------------------------------------------------------------------+


所有被删除的元素,均替换为调用基类的更新方法

//+------------------------------------------------------------------+
//| Update the current account data                                  |
//+------------------------------------------------------------------+
void CAccountsCollection::Refresh(void)
  {
   ::ResetLastError();
   if(!::SymbolInfoTick(::Symbol(),this.m_tick))
     {
      this.m_global_error=::GetLastError();
      return;
     }
   if(this.m_index_current==WRONG_VALUE)
      return;
   CAccount* account=this.m_list_accounts.At(this.m_index_current);
   if(account==NULL)
      return;
   account.Refresh();
  }
//+------------------------------------------------------------------+


该方法更新对象数据,并搜索属性变化,以便生成事件:

//+------------------------------------------------------------------+
//| Working with the events of the collection symbol list            |
//+------------------------------------------------------------------+
void CAccountsCollection::RefreshAndEventsControl(void)
  {
   ::ResetLastError();
   if(!::SymbolInfoTick(::Symbol(),this.m_tick))
     {
      this.m_global_error=::GetLastError();
      return;
     }
   if(this.m_index_current==WRONG_VALUE)
      return;
   this.m_is_event=false;
   this.m_list_events.Clear();
   this.m_list_events.Sort();
   CAccount* account=this.m_list_accounts.At(this.m_index_current);
   if(account==NULL)
      return;
   account.Refresh();
   if(!account.IsEvent())
      return;
   CArrayObj *list=account.GetListEvents();
   if(list==NULL)
      return;
   this.m_is_event=true;
   this.m_event_code=account.GetEventCode();
   int n=list.Total();
   for(int j=0; j<n; j++)
     {
      CEventBaseObj *event=list.At(j);
      if(event==NULL)
         continue;
      this.m_last_event=event.ID();
      if(this.EventAdd((ushort)event.ID(),event.LParam(),event.DParam(),event.SParam()))
        {
         ::EventChartCustom(this.m_chart_id,(ushort)event.ID(),event.LParam(),event.DParam(),event.SParam());
        }
     }
  }
//+------------------------------------------------------------------+


此刻,如果获取当前品种即时报价的尝试未成功,则保存错误代码,并退出方法。 如果由于某种原因在帐户集合列表中找不到当前帐户,且其索引为负数值,则退出方法
重置帐户事件标记
清除帐户事件列表,并为其设置已排序列表标记
从帐户集合列表中获取当前帐户对象,并更新帐户数据
如果目前没有帐户事件,
则退出方法
否则,从基准对象中获取帐户基准事件的列表设置帐户事件标志,并获取最后一个事件代码(最有可能的是,过去的剩余部分也会在以后删除)。 依据基准事件列表进行的循环中从列表中获取下一个事件保存上一个帐户事件将它添加进帐户事件列表,然后将事件发送到控制程序所在图表

从类的方法实现清单中删除 SetAccountsParams(), SetEventCode(), EventDescription(), InitChangesParams()InitControlsParams()

以前返回枚举值的方法,现在按其在列表中的编号返回帐户事件。 枚举已被删除,因此该方法现在返回 'int' 值如果未找到事件,则返回 -1:

//+------------------------------------------------------------------+
//| Return the account event by its number in the list               |
//+------------------------------------------------------------------+
int CAccountsCollection::GetEventID(const int shift=WRONG_VALUE,const bool check_out=true)
  {
   CEventBaseObj *event=this.GetEvent(shift,check_out);
   if(event==NULL)
      return WRONG_VALUE;
   return (int)event.ID();
  }
//+------------------------------------------------------------------+


这些是帐户集合类中所有必要的修改。

现在,只剩下函数库的 CEngine基准对象类需要略微修改。
打开 \MQL5\Include\DoEasy\ Engine.mqh 文件,并进行必要的修改。

以前,在 m_last_account_event 变量里存储帐户以前事件,且 GetAccountEventByIndex()LastAccountEvent() 方法返回的值,含有 ENUM_ACCOUNT_EVENT 枚举类型,但我们要剔除它。 我们为它们引入 “int” 类型:

//+------------------------------------------------------------------+
//| Library basis class                                              |
//+------------------------------------------------------------------+
class CEngine : public CObject
  {
private:
   CHistoryCollection   m_history;                       // Collection of historical orders and deals
   CMarketCollection    m_market;                        // Collection of market orders and deals
   CEventsCollection    m_events;                        // Event collection
   CAccountsCollection  m_accounts;                      // Account collection
   CSymbolsCollection   m_symbols;                       // Symbol collection
   CArrayObj            m_list_counters;                 // List of timer counters
   int                  m_global_error;                  // Global error code
   bool                 m_first_start;                   // First launch flag
   bool                 m_is_hedge;                      // Hedge account flag
   bool                 m_is_tester;                     // Flag of working in the tester
   bool                 m_is_market_trade_event;         // Account trading event flag
   bool                 m_is_history_trade_event;        // Account history trading event flag
   bool                 m_is_account_event;              // Account change event flag
   bool                 m_is_symbol_event;               // Symbol change event flag
   ENUM_TRADE_EVENT     m_last_trade_event;              // Last account trading event
   int                  m_last_account_event;            // Last event in the account properties

//--- Return the list of (1) accounts, (2) account events, (3) account change event by its index in the list
//--- (4) the current account, (5) event description
   CArrayObj           *GetListAllAccounts(void)                        { return this.m_accounts.GetList();                   }
   CArrayObj           *GetListAccountEvents(void)                      { return this.m_accounts.GetListEvents();             }
   int                  GetAccountEventByIndex(const int index=-1)      { return this.m_accounts.GetEventID(index);           }
   CAccount            *GetAccountCurrent(void);

//--- Return the (1) last trading event, (2) the last event in the account properties, (3) hedging account flag, (4) flag of working in the tester
   ENUM_TRADE_EVENT     LastTradeEvent(void)                      const { return this.m_last_trade_event;                     }
   int                  LastAccountEvent(void)                    const { return this.m_last_account_event;                   }
   int                  LastSymbolsEvent(void)                    const { return this.m_last_symbol_event;                    }


在类构造函数的初始化清单中,将 m_last_account_event 变量初始化为 -1。 以前,我们是用已被删除的 ENUM_ACCOUNT_EVENT 枚举的 ACCOUNT_EVENT_NO_EVENT 常量对其进行初始化。

//+------------------------------------------------------------------+
//| CEngine constructor                                              |
//+------------------------------------------------------------------+
CEngine::CEngine() : m_first_start(true),
                     m_last_trade_event(TRADE_EVENT_NO_EVENT),
                     m_last_account_event(WRONG_VALUE),
                     m_last_symbol_event(WRONG_VALUE),
                     m_global_error(ERR_SUCCESS)
  {
   this.m_is_hedge=#ifdef __MQL4__ true #else bool(::AccountInfoInteger(ACCOUNT_MARGIN_MODE)==ACCOUNT_MARGIN_MODE_RETAIL_HEDGING) #endif;
   this.m_is_tester=::MQLInfoInteger(MQL_TESTER);
   
   this.m_list_counters.Sort();
   this.m_list_counters.Clear();
   this.CreateCounter(COLLECTION_ORD_COUNTER_ID,COLLECTION_ORD_COUNTER_STEP,COLLECTION_ORD_PAUSE);
   this.CreateCounter(COLLECTION_ACC_COUNTER_ID,COLLECTION_ACC_COUNTER_STEP,COLLECTION_ACC_PAUSE);
   
   this.CreateCounter(COLLECTION_SYM_COUNTER_ID1,COLLECTION_SYM_COUNTER_STEP1,COLLECTION_SYM_PAUSE1);
   this.CreateCounter(COLLECTION_SYM_COUNTER_ID2,COLLECTION_SYM_COUNTER_STEP2,COLLECTION_SYM_PAUSE2);
   
   ::ResetLastError();
   #ifdef __MQL5__
      if(!::EventSetMillisecondTimer(TIMER_FREQUENCY))
        {
         ::Print(DFUN_ERR_LINE,"Не удалось создать таймер. Ошибка: ","Could not create timer. Error: ",(string)::GetLastError());
         this.m_global_error=::GetLastError();
        }
   //---__MQL4__
   #else 
      if(!this.IsTester() && !::EventSetMillisecondTimer(TIMER_FREQUENCY))
        {
         ::Print(DFUN_ERR_LINE,"Не удалось создать таймер. Ошибка: ","Could not create timer. Error: ",(string)::GetLastError());
         this.m_global_error=::GetLastError();
        }
   #endif 
  }
//+------------------------------------------------------------------+


由于我们用 RefreshAndEventsControl() 替换了品种集合类的 Refresh() 方法的名称,并在帐户集合类中创建了相同的方法,故在原来以品种名称和帐户为参数操作的方法里,替换所调用方法的名称

//+------------------------------------------------------------------+
//| Working with symbol collection events                            |
//+------------------------------------------------------------------+
void CEngine::SymbolEventsControl(void)
  {
   this.m_symbols.RefreshAndEventsControl();
   this.m_is_symbol_event=this.m_symbols.IsEvent();
//--- If there are changes in symbol properties
   if(this.m_is_symbol_event)
     {
      //--- Get the last event of the symbol property change
      this.m_last_symbol_event=this.m_symbols.GetLastEvent();
     }
  }
//+------------------------------------------------------------------+

//+------------------------------------------------------------------+
//| Check account events                                             |
//+------------------------------------------------------------------+
void CEngine::AccountEventsControl(void)
  {
//--- Check account property changes and set the flag of the account change events
   this.m_accounts.RefreshAndEventsControl();
   this.m_is_account_event=this.m_accounts.IsEvent();
//--- If there are account property changes
   if(this.m_is_account_event)
     {
      //--- Get the last event of the account property change
      this.m_last_account_event=this.m_accounts.GetEventID();
     }
  }
//+------------------------------------------------------------------+


这些就是 CEngine 类中的所有修改。

现在,我们能够以编程方式为基于 CBaseObj 基准对象的任何类设置要跟踪的属性。 此外,我们能够设置属性变化值,超过该值时,将生成基类衍生的事件。
我们看看如何完成所有这些工作。

测试跟踪参数的设置,并接收对象事件

为了执行测试,我们将利用上一篇文章的测试 EA将其保存在新文件夹中并改个新名称,\MQL5\Experts\TestDoEasy\Part18\TestDoEasyPart18.mq5

我们要测试的内容为参数设置,它们是我们预计在两个不同类里跟踪的自定义变化。 现在,此操作可由统一的方式完成。

我们来跟踪 CSymbol 类

  • 所有用到品种的出价提高 10 点
  • 所有用到品种的出价降低 10 点
  • 所有用到品种的点差提高 4 点
  • 所有用到品种的点差降低 4 点
  • 控制所有用到品种的点差值超过 15 点
  • 控制当前交易品种的出价超过数值 1.10300
对于 Account 类,我们将跟踪
  • 当前利润增加 10 个帐户货币单位
  • 资金增加 15 个帐户货币单位
  • 控制当前利润的增加高于 20 个帐户货币单位

当资金增加超过 15 个单位时,如果存在利润大于零的持仓,则将盈利最多的持仓平仓。

为了进行测试,在 OnInit() 响应程序中设置所有必要的值

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- Calling the function displays the list of enumeration constants in the journal 
//--- (the list is set in the strings 22 and 25 of the DELib.mqh file) for checking the constants validity
   //EnumNumbersTest();

//--- Set EA global variables
   prefix=MQLInfoString(MQL_PROGRAM_NAME)+"_";
   for(int i=0;i<TOTAL_BUTT;i++)
     {
      butt_data[i].name=prefix+EnumToString((ENUM_BUTTONS)i);
      butt_data[i].text=EnumToButtText((ENUM_BUTTONS)i);
     }
   lot=NormalizeLot(Symbol(),fmax(InpLots,MinimumLots(Symbol())*2.0));
   magic_number=InpMagic;
   stoploss=InpStopLoss;
   takeprofit=InpTakeProfit;
   distance_pending=InpDistance;
   distance_stoplimit=InpDistanceSL;
   slippage=InpSlippage;
   trailing_stop=InpTrailingStop*Point();
   trailing_step=InpTrailingStep*Point();
   trailing_start=InpTrailingStart;
   stoploss_to_modify=InpStopLossModify;
   takeprofit_to_modify=InpTakeProfitModify;
   
//--- Check if working with the full list is selected
   used_symbols_mode=InpModeUsedSymbols;
   if((ENUM_SYMBOLS_MODE)used_symbols_mode==SYMBOLS_MODE_ALL)
     {
      int total=SymbolsTotal(false);
      string ru_n="\nКоличество символов на сервере "+(string)total+".\nМаксимальное количество: "+(string)SYMBOLS_COMMON_TOTAL+" символов.";
      string en_n="\nThe number of symbols on server "+(string)total+".\nMaximal number: "+(string)SYMBOLS_COMMON_TOTAL+" symbols.";
      string caption=TextByLanguage("Внимание!","Attention!");
      string ru="Выбран режим работы с полным списком.\nВ этом режиме первичная подготовка списка коллекции символов может занять длительное время."+ru_n+"\nПродолжить?\n\"Нет\" - работа с текущим символом \""+Symbol()+"\"";
      string en="Full list mode selected.\nIn this mode, the initial preparation of the collection symbols list may take a long time."+en_n+"\nContinue?\n\"No\" - working with the current symbol \""+Symbol()+"\"";
      string message=TextByLanguage(ru,en);
      int flags=(MB_YESNO | MB_ICONWARNING | MB_DEFBUTTON2);
      int mb_res=MessageBox(message,caption,flags);
      switch(mb_res)
        {
         case IDNO : 
           used_symbols_mode=SYMBOLS_MODE_CURRENT; 
           break;
         default:
           break;
        }
     }
//--- Fill in the array of used symbols
   used_symbols=InpUsedSymbols;
   CreateUsedSymbolsArray((ENUM_SYMBOLS_MODE)used_symbols_mode,used_symbols,array_used_symbols);

//--- Set the type of the used symbol list in the symbol collection
   engine.SetUsedSymbols(array_used_symbols);
//--- Displaying the selected mode of working with the symbol object collection
   Print(engine.ModeSymbolsListDescription(),TextByLanguage(". Количество используемых символов: ",". Number of symbols used: "),engine.GetSymbolsCollectionTotal());

//--- Set controlled values for symbols
   string ru1="",ru2="",ru3="",en1="",en2="",en3="";
   //--- Get the list of all collection symbols
   CArrayObj *list=engine.GetListAllUsedSymbols();
   if(list!=NULL && list.Total()!=0)
     {
      //--- In a loop by the list, set the necessary values for tracked symbol properties
      //--- By default, the LONG_MAX value is set to all properties, which means "Do not track this property" 
      //--- It can be enabled or disabled (by setting the value less than LONG_MAX or vice versa - set the LONG_MAX value) at any time and anywhere in the program
      for(int i=0;i<list.Total();i++)
        {
         CSymbol* symbol=list.At(i);
         if(symbol==NULL)
            continue;
         //--- Set control of the symbol price increase by 10 points
         symbol.SetControlBidInc(10*symbol.Point());
         ru1="Контролируем увеличение цены Bid для символа ";
         ru2=" на ";
         ru3=" пунктов";
         en1="Bid price increase control for symbol ";
         en2=" by ";
         en3=" points";
         Print(TextByLanguage(ru1,en1),symbol.Name(),TextByLanguage(ru2,en2),DoubleToString(symbol.GetControlledDoubleValueINC(SYMBOL_PROP_BID),symbol.Digits()));
         
         //--- Set control of the symbol price decrease by 10 points
         symbol.SetControlBidDec(10*symbol.Point());
         ru1="Контролируем уменьшение цены Bid для символа ";
         ru2=" на ";
         ru3=" пунктов";
         en1="Bid price decrease control for symbol ";
         en2=" by ";
         en3=" points";
         Print(TextByLanguage(ru1,en1),symbol.Name(),TextByLanguage(ru2,en2),DoubleToString(symbol.GetControlledDoubleValueINC(SYMBOL_PROP_BID),symbol.Digits()));
         
         //--- Set control of the symbol spread increase by 4 points
         symbol.SetControlSpreadInc(4);
         ru1="Контролируем увеличение спреда для символа ";
         ru2=" на ";
         ru3=" пунктов";
         en1="Spread value increase control for symbol ";
         en2=" by ";
         en3=" points";
         Print(TextByLanguage(ru1,en1),symbol.Name(),TextByLanguage(ru2,en2),(string)symbol.GetControlledLongValueINC(SYMBOL_PROP_SPREAD),TextByLanguage(ru3,en3));
         
         //--- Set control of the symbol spread decrease by 4 points
         symbol.SetControlSpreadDec(4);
         ru1="Контролируем уменьшение спреда для символа ";
         ru2=" на ";
         ru3=" пунктов";
         en1="Spread value decrease control for symbol ";
         en2=" by ";
         en3=" points";
         Print(TextByLanguage(ru1,en1),symbol.Name(),TextByLanguage(ru2,en2),(string)symbol.GetControlledLongValueDEC(SYMBOL_PROP_SPREAD),TextByLanguage(ru3,en3));
         
         //--- Set control of the current spread by the value of 15 points
         symbol.SetControlSpreadLevel(15);
         ru1="Контролируем значение спреда для символа ";
         ru2=" в ";
         ru3=" пунктов";
         en1="Control the spread value for the symbol ";
         en2=" at ";
         en3=" points";
         Print(TextByLanguage(ru1,en1),symbol.Name(),TextByLanguage(ru2,en2),(string)symbol.GetControlledLongValueLEVEL(SYMBOL_PROP_SPREAD),TextByLanguage(ru3,en3));
         Print("------");
         
         //--- Set control of the price crossing the level of 1.10700 for the current symbol
         if(symbol.Name()==Symbol())
           {
            symbol.SetControlBidLevel(1.10300);
            ru1="Контролируемый уровень цены Bid для символа ";
            ru2=" установлен в значение ";
            en1="Controlled level of Bid price for the symbol ";
            en2=" is set to ";
            Print(TextByLanguage(ru1,en1),symbol.Name(),TextByLanguage(ru2,en2),DoubleToString(symbol.GetControlledDoubleValueLEVEL(SYMBOL_PROP_BID),symbol.Digits()));
           }
        }
     }
//--- Set controlled values for the current account
   Print("------");
   CAccount* account=engine.GetAccountCurrent();
   if(account!=NULL)
     {
      //--- Set control of the profit increase
      account.SetControlledValueINC(ACCOUNT_PROP_PROFIT,10.0);
      Print(TextByLanguage("Контролируем увеличение прибыли аккаунта на ","Controlling account profit increase by "),DoubleToString(account.GetControlledDoubleValueINC(ACCOUNT_PROP_PROFIT),(int)account.CurrencyDigits())," ",account.Currency());
      //--- Set control of the funds increase
      account.SetControlledValueINC(ACCOUNT_PROP_EQUITY,15.0);
      Print(TextByLanguage("Контролируем увеличение средств аккаунта на ","Controlling account equity increase by "),DoubleToString(account.GetControlledDoubleValueINC(ACCOUNT_PROP_EQUITY),(int)account.CurrencyDigits())," ",account.Currency());
      //--- Set profit control level
      account.SetControlledValueLEVEL(ACCOUNT_PROP_PROFIT,20.0);
      Print(TextByLanguage("Контролируем уровень прибыли аккаунта в ","Controlling the account profit level of "),DoubleToString(account.GetControlledDoubleValueLEVEL(ACCOUNT_PROP_PROFIT),(int)account.CurrencyDigits())," ",account.Currency());
     }

//--- Check and remove remaining EA graphical objects
   if(IsPresentObects(prefix))
      ObjectsDeleteAll(0,prefix);

//--- Create the button panel
   if(!CreateButtons(InpButtShiftX,InpButtShiftY))
      return INIT_FAILED;
//--- Set trailing activation button status
   ButtonState(butt_data[TOTAL_BUTT-1].name,trailing_on);

//--- Set CTrade trading class parameters
#ifdef __MQL5__
   trade.SetDeviationInPoints(slippage);
   trade.SetExpertMagicNumber(magic_number);
   trade.SetTypeFillingBySymbol(Symbol());
   trade.SetMarginMode();
   trade.LogLevel(LOG_LEVEL_NO);
#endif 
//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+


该清单包含所有必要的注释。 我确信,一切都很容易理解。 设置属性的跟踪值后,它会立即显示在日志中(作为接收设置跟踪属性值的示例)。

OnTick() 响应程序中,删除用于存储之前帐户事件的 last_account_event 变量,这是前面定义新事件所需要的。
现在,响应程序如下所示:

//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
//--- Initializing the last events
   static ENUM_TRADE_EVENT last_trade_event=WRONG_VALUE;
//--- If working in the tester
   if(MQLInfoInteger(MQL_TESTER))
     {
      engine.OnTimer();
      PressButtonsControl();
     }
//--- If the last trading event changed
   if(engine.LastTradeEvent()!=last_trade_event)
     {
      last_trade_event=engine.LastTradeEvent();
      Comment("\nLast trade event: ",engine.GetLastTradeEventDescription());
      engine.ResetLastTradeEvent();
     }
//--- If there is an account event
   if(engine.IsAccountsEvent())
     {
      //--- If this is a tester
      if(MQLInfoInteger(MQL_TESTER))
        {
         //--- Get the list of all account events occurred simultaneously
         CArrayObj* list=engine.GetListAccountEvents();
         if(list!=NULL)
           {
            //--- Get the next event in a loop
            int total=list.Total();
            for(int i=0;i<total;i++)
              {
               //--- take an event from the list
               CEventBaseObj *event=list.At(i);
               if(event==NULL)
                  continue;
               //--- Send an event to the event handler
               long lparam=event.LParam();
               double dparam=event.DParam();
               string sparam=event.SParam();
               OnDoEasyEvent(CHARTEVENT_CUSTOM+event.ID(),lparam,dparam,sparam);
              }
           }
        }
     }
//--- If there is a symbol collection event
   if(engine.IsSymbolsEvent())
     {
      //--- If this is a tester
      if(MQLInfoInteger(MQL_TESTER))
        {
         //--- Get the list of all symbol events occurred simultaneously
         CArrayObj* list=engine.GetListSymbolsEvents();
         if(list!=NULL)
           {
            //--- Get the next event in a loop
            int total=list.Total();
            for(int i=0;i<total;i++)
              {
               //--- take an event from the list
               CEventBaseObj *event=list.At(i);
               if(event==NULL)
                  continue;
               //--- Send an event to the event handler
               long lparam=event.LParam();
               double dparam=event.DParam();
               string sparam=event.SParam();
               OnDoEasyEvent(CHARTEVENT_CUSTOM+event.ID(),lparam,dparam,sparam);
              }
           }
        }
     }
//--- If the trailing flag is set
   if(trailing_on)
     {
      TrailingPositions();
      TrailingOrders();
     }
  }
//+------------------------------------------------------------------+


现在,可以从函数库的 CEngine 主对象获取所有的新事件标志。 更重要的是,我们甚至可以从不同的品种获得两个相似的事件。 这与定义事件品种有关,而帐户始终保持不变(当前帐户)。 与之相对,在使用变量时这是不可能的,因为当前和先前的事件据推测应是相同的,因此没有事件。 那是不对的。

函数库事件响应程序已得到改进,可用于定义帐户事件,并响应资金额按指定值增加:

//+------------------------------------------------------------------+
//| Handling DoEasy library events                                   |
//+------------------------------------------------------------------+
void OnDoEasyEvent(const int id,
                   const long &lparam,
                   const double &dparam,
                   const string &sparam)
  {
   int idx=id-CHARTEVENT_CUSTOM;
   string event="::"+string(idx);
   
//--- Retrieve (1) event time milliseconds, (2) reason and (3) source from lparam, as well as (4) set the exact event time
   ushort msc=engine.EventMSC(lparam);
   ushort reason=engine.EventReason(lparam);
   ushort source=engine.EventSource(lparam);
   long time=TimeCurrent()*1000+msc;
   
//--- Handling symbol events
   if(source==COLLECTION_SYMBOLS_ID)
     {
      CSymbol *symbol=engine.GetSymbolObjByName(sparam);
      if(symbol==NULL)
         return;
      //--- Number of decimal places in the event value - in case of a 'long' event, it is 0, otherwise - Digits() of a symbol
      int digits=(idx<SYMBOL_PROP_INTEGER_TOTAL ? 0 : symbol.Digits());
      //--- Event text description
      string id_descr=(idx<SYMBOL_PROP_INTEGER_TOTAL ? symbol.GetPropertyDescription((ENUM_SYMBOL_PROP_INTEGER)idx) : symbol.GetPropertyDescription((ENUM_SYMBOL_PROP_DOUBLE)idx));
      //--- Property change text value
      string value=DoubleToString(dparam,digits);
      
      //--- Check event reasons and display its description in the journal
      if(reason==BASE_EVENT_REASON_INC)
        {
         Print(symbol.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
      if(reason==BASE_EVENT_REASON_DEC)
        {
         Print(symbol.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
      if(reason==BASE_EVENT_REASON_MORE_THEN)
        {
         Print(symbol.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
      if(reason==BASE_EVENT_REASON_LESS_THEN)
        {
         Print(symbol.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
      if(reason==BASE_EVENT_REASON_EQUALS)
        {
         Print(symbol.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
     }   
     
//--- Handling account events
   else if(source==COLLECTION_ACCOUNT_ID)
     {
      CAccount *account=engine.GetAccountCurrent();
      if(account==NULL)
         return;
      //--- Number of decimal places in the event value - in case of a 'long' event, it is 0, otherwise - Digits() of a symbol
      int digits=int(idx<ACCOUNT_PROP_INTEGER_TOTAL ? 0 : account.CurrencyDigits());
      //--- Event text description
      string id_descr=(idx<ACCOUNT_PROP_INTEGER_TOTAL ? account.GetPropertyDescription((ENUM_ACCOUNT_PROP_INTEGER)idx) : account.GetPropertyDescription((ENUM_ACCOUNT_PROP_DOUBLE)idx));
      //--- Property change text value
      string value=DoubleToString(dparam,digits);
      
      //--- Checking event reasons and handling the increase of funds by a specified value,
      //--- for other events, simply display their descriptions in the journal
      
      //--- In case of a property value increase
      if(reason==BASE_EVENT_REASON_INC)
        {
         //--- Display an event in the journal
         Print(account.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
         //--- if this is an equity increase
         if(idx==ACCOUNT_PROP_EQUITY)
           {
            //--- Get the list of all open positions
            CArrayObj* list_positions=engine.GetListMarketPosition();
            //--- Select positions with the profit exceeding zero
            list_positions=CSelect::ByOrderProperty(list_positions,ORDER_PROP_PROFIT_FULL,0,MORE);
            if(list_positions!=NULL)
              {
               //--- Sort the list by profit considering commission and swap
               list_positions.Sort(SORT_BY_ORDER_PROFIT_FULL);
               //--- Get the position index with the highest profit
               int index=CSelect::FindOrderMax(list_positions,ORDER_PROP_PROFIT_FULL);
               if(index>WRONG_VALUE)
                 {
                  COrder* position=list_positions.At(index);
                  if(position!=NULL)
                    {
                     //--- Get a ticket of a position with the highest profit and close the position by a ticket
                     #ifdef __MQL5__
                        trade.PositionClose(position.Ticket());
                     #else 
                        PositionClose(position.Ticket(),position.Volume());
                     #endif 
                    }
                 }
              }
           }
        }
      //--- Other events are simply displayed in the journal
      if(reason==BASE_EVENT_REASON_DEC)
        {
         Print(account.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
      if(reason==BASE_EVENT_REASON_MORE_THEN)
        {
         Print(account.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
      if(reason==BASE_EVENT_REASON_LESS_THEN)
        {
         Print(account.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
      if(reason==BASE_EVENT_REASON_EQUALS)
        {
         Print(account.EventDescription(idx,(ENUM_BASE_EVENT_REASON)reason,source,value,id_descr,digits));
        }
     } 
     
//--- Handling trading events
   else if(idx>TRADE_EVENT_NO_EVENT && idx<TRADE_EVENTS_NEXT_CODE)
     {
      event=EnumToString((ENUM_TRADE_EVENT)ushort(idx));
      int digits=(int)SymbolInfoInteger(sparam,SYMBOL_DIGITS);
     }
     
//--- Handling market watch window events
   else if(idx>MARKET_WATCH_EVENT_NO_EVENT && idx<SYMBOL_EVENTS_NEXT_CODE)
     {
      string name="";
      //--- Market Watch window event
      string descr=engine.GetMWEventDescription((ENUM_MW_EVENT)idx);
      name=(idx==MARKET_WATCH_EVENT_SYMBOL_SORT ? "" : ": "+sparam);
      Print(TimeMSCtoString(lparam)," ",descr,name);
     }
  }
//+------------------------------------------------------------------+


与定义事件相关的所有动作均含带必要的代码注释,这可令它们易于理解。 用于处理来自不同类的事件的模块已被更换(仅用于维护订单,并由 “if-else” 条件分隔)。 这很重要,因为我们有若干种事件类型:品种和账户事件以相同的方式(使用集合 ID)处理,而交易和“市场观察”窗口事件则按照事件的枚举值进行处理。 为了避免不同事件定义方法之间的冲突,将模块用条件语句分开。

EA 的完整清单在下面的文件中提供。

编译 EA,在测试器设置中为 StopLoss in pointsTakeProfit in points 参数设置零值。 对于 Mode of used symbols list 参数,选择 "Work only with the current symbol",和 M15 Last month,并启动可视 EA 测试:


在启动测试之前,我们可以看到日志含有所跟踪交易品种和帐户属性的指定值。 在可视测试期间,日至中会显示有关从我们正在跟踪其变化属性获得的事件消息。 如果资金增加超过控制值,则获利持仓会平仓。

如此,我们为所有函数库对象创建了基准对象,该基准对象为其后代提供了事件功能,以及在任何时间为所有对象的任意属性设置和接收跟踪参数的方法。
展望未来,这将大大简化为新对象开发新类的工作。

下一步是什么?

在下一篇文章中,我们将实现函数库消息类,包括内部消息(来自函数库方法的消息)和外部消息(错误和来自终端的其他消息)。

文后附有当前版本含糊库的所有文件,以及测试 EA 文件,供您测试和下载。
请在评论中留下您的问题、意见和建议。

返回目录

系列中的前几篇文章:

第一部分 概念,数据管理
第二部分 历史订单和成交集合
第三部分 在场订单和持仓集合,安排搜索
第四部分 交易事件, 概念
第五部分 交易事件类和集合。 将事件发送至程序
第六部分 净持帐户事件
第七部分 StopLimit 挂单激活事件,为订单和持仓修改事件准备功能
第八部分 订单和持仓修改事件
第九部分 与 MQL4 的兼容性 - 准备数据
第十部分 与 MQL4 的兼容性 - 开仓和激活挂单事件
第十一部分 与 MQL4 的兼容性 - 平仓事件
第十二部分 帐户对象类和帐户对象集合
第十三部分 账户对象事件
第十四部分 品种对象
第十五部份 品种对象集合
第十六部分 品种集合事件
第十七部分 函数库对象之间的交互


本文译自 MetaQuotes Software Corp. 撰写的俄文原文
原文地址: https://www.mql5.com/ru/articles/7149

附加的文件 |
MQL5.zip (210.04 KB)
MQL4.zip (210.03 KB)
最近评论 | 前往讨论 (2)
Shuai Fu
Shuai Fu | 2 12月 2019 在 04:06
希望您能回复我:为什么我编辑文档的时候不能插图,用户链接、优酷视频、表格、代码,中间唯独少了一个插入图片的功能 ,,,为什么??
Artyom Trishkin
Artyom Trishkin | 2 12月 2019 在 04:30
Shuai Fu :
希望您能回复我:为什么我编辑文档的时候不能插图,用户链接、优酷视频、表格、代码,中间唯独少了一个插入图片的功能 ,,,为什么??

Please write your question in English.

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