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Need errors to be fixed on my mql5 language mt5 code

MQL5 Indikatoren Experten Forex Debugging eines Roboters/Indikators

Spezifikation

this is not the whole code though(//+------------------------------------------------------------------+
//|                                                        Trade.mqh |
//|                             Copyright 2000-2024, MetaQuotes Ltd. |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#include <Object.mqh>
#include "OrderInfo.mqh"
#include "HistoryOrderInfo.mqh"
#include "PositionInfo.mqh"
#include "DealInfo.mqh"
#include <Trade\Trade.mqh>

//+------------------------------------------------------------------+
//| enumerations                                                     |
//+------------------------------------------------------------------+
enum ENUM_LOG_LEVELS
{
    LOG_LEVEL_NO = 0,
    LOG_LEVEL_ERRORS = 1,
    LOG_LEVEL_ALL = 2
};

//+------------------------------------------------------------------+
//| Class CTrade.                                                    |
//| Appointment: Class trade operations.                             |
//|              Derives from class CObject.                         |
//+------------------------------------------------------------------+
class CTrade : public CObject
{
protected:
    MqlTradeRequest m_request;              // request data
    MqlTradeResult m_result;                 // result data
    MqlTradeCheckResult m_check_result;      // result check data
    bool m_async_mode;                      // trade mode
    ulong m_magic;                           // expert magic number
    ulong m_deviation;                      // deviation default
    ENUM_ORDER_TYPE_FILLING m_type_filling;
    ENUM_ACCOUNT_MARGIN_MODE m_margin_mode;
    //---
    ENUM_LOG_LEVELS m_log_level;

public:
    CTrade(void);
    ~CTrade(void);
    //--- methods of access to protected data
    void LogLevel(const ENUM_LOG_LEVELS log_level) { m_log_level = log_level; }
    void Request(MqlTradeRequest &m_request) const;
    ENUM_TRADE_REQUEST_ACTIONS RequestAction(void) const { return (m_request.action); }
    string RequestActionDescription(void) const;
    ulong RequestMagic(void) const { return (m_request.magic); }
    ulong RequestOrder(void) const { return (m_request.order); }
    ulong RequestPosition(void) const { return (m_request.position); }
    ulong RequestPositionBy(void) const { return (m_request.position_by); }
    string RequestSymbol(void) const { return (m_request.symbol); }
    double RequestVolume(void) const { return (m_request.volume); }
    double RequestPrice(void) const { return (m_request.price); }
    double RequestStopLimit(void) const { return (m_request.stoplimit); }
    double RequestSL(void) const { return (m_request.sl); }
    double RequestTP(void) const { return (m_request.tp); }
    ulong RequestDeviation(void) const { return (m_request.deviation); }
    ENUM_ORDER_TYPE RequestType(void) const { return (m_request.type); }
    string RequestTypeDescription(void) const;
    ENUM_ORDER_TYPE_FILLING RequestTypeFilling(void) const { return (m_request.type_filling); }
    string RequestTypeFillingDescription(void) const;
    ENUM_ORDER_TYPE_TIME RequestTypeTime(void) const { return (m_request.type_time); }
    string RequestTypeTimeDescription(void) const;
    datetime RequestExpiration(void) const { return (m_request.expiration); }
    string RequestComment(void) const { return (m_request.comment); }
    //---
    void Result(MqlTradeResult &m_result) const;
    uint ResultRetcode(void) const { return (m_result.retcode); }
    string ResultRetcodeDescription(void) const;
    int ResultRetcodeExternal(void) const { return (m_result.retcode_external); }
    ulong ResultDeal(void) const { return (m_result.deal); }
    ulong ResultOrder(void) const { return (m_result.order); }
    double ResultVolume(void) const { return (m_result.volume); }
    double ResultPrice(void) const { return (m_result.price); }
    double ResultBid(void) const { return (m_result.bid); }
    double ResultAsk(void) const { return (m_result.ask); }
    string ResultComment(void) const { return (m_result.comment); }
    //---
    void CheckResult(MqlTradeCheckResult &m_check_result) const;
    uint CheckResultRetcode(void) const { return (m_check_result.retcode); }
    string CheckResultRetcodeDescription(void) const;
    double CheckResultBalance(void) const { return (m_check_result.balance); }
    double CheckResultEquity(void) const { return (m_check_result.equity); }
    double CheckResultProfit(void) const { return (m_check_result.profit); }
    double CheckResultMargin(void) const { return (m_check_result.margin); }
    double CheckResultMarginFree(void) const { return (m_check_result.margin_free); }
    double CheckResultMarginLevel(void) const { return (m_check_result.margin_level); }
    string CheckResultComment(void) const { return (m_check_result.comment); }
    //--- trade methods
    void SetAsyncMode(const bool mode) { m_async_mode = mode; }
    void SetExpertMagicNumber(const ulong magic) { m_magic = magic; }
    void SetDeviationInPoints(const ulong deviation) { m_deviation = deviation; }
    void SetTypeFilling(const ENUM_ORDER_TYPE_FILLING filling) { m_type_filling = filling; }
    bool SetTypeFillingBySymbol(const string symbol);
    void SetMarginMode(void) { m_margin_mode = (ENUM_ACCOUNT_MARGIN_MODE)AccountInfoInteger(ACCOUNT_MARGIN_MODE); }
    //--- methods for working with positions
    bool PositionOpen(const string symbol, const ENUM_ORDER_TYPE order_type, const double volume,
                      const double price, const double sl, const double tp, const string comment = "");
    bool PositionModify(const string symbol, const double sl, const double tp);
    bool PositionModify(const ulong ticket, const double sl, const double tp);
    bool PositionClose(const string symbol, const ulong deviation = ULONG_MAX);
    bool PositionClose(const ulong ticket, const ulong deviation = ULONG_MAX);
    bool PositionCloseBy(const ulong ticket, const ulong ticket_by);
    bool PositionClosePartial(const string symbol, const double volume, const ulong deviation = ULONG_MAX);
    bool PositionClosePartial(const ulong ticket, const double volume, const ulong deviation = ULONG_MAX);
    //--- methods for working with pending orders
    bool OrderOpen(const string symbol, const ENUM_ORDER_TYPE order_type, const double volume,
                   const double limit_price, const double price, const double sl, const double tp,
                   ENUM_ORDER_TYPE_TIME type_time = ORDER_TIME_GTC, const datetime expiration = 0,
                   const string comment = "");
    bool OrderModify(const ulong ticket, const double price, const double sl, const double tp,
                     const ENUM_ORDER_TYPE_TIME type_time, const datetime expiration, const double stoplimit = 0.0);
    bool OrderDelete(const ulong ticket);
    //--- additions methods
    bool Buy(const double volume, const string symbol = NULL, double price = 0.0, const double sl = 0.0, const double tp = 0.0, const string comment = "");
    bool Sell(const double volume, const string symbol = NULL, double price = 0.0, const double sl = 0.0, const double tp = 0.0, const string comment = "");
    bool BuyLimit(const double volume, const double price, const string symbol = NULL, const double sl = 0.0, const double tp = 0.0,
                  const ENUM_ORDER_TYPE_TIME type_time = ORDER_TIME_GTC, const datetime expiration = 0, const string comment = "");
    bool BuyStop(const double volume, const double price, const string symbol = NULL, const double sl = 0.0, const double tp = 0.0,
                 const ENUM_ORDER_TYPE_TIME type_time = ORDER_TIME_GTC, const datetime expiration = 0, const string comment = "");
    bool SellLimit(const double volume, const double price, const string symbol = NULL, const double sl = 0.0, const double tp = 0.0,
                   const ENUM_ORDER_TYPE_TIME type_time = ORDER_TIME_GTC, const datetime expiration = 0, const string comment = "");
    bool SellStop(const double volume, const double price, const string symbol = NULL, const double sl = 0.0, const double tp = 0.0,
                  const ENUM_ORDER_TYPE_TIME type_time = ORDER_TIME_GTC, const datetime expiration = 0, const string comment = "");
    //--- method check
    double CheckVolume(const string symbol, double volume, double price, ENUM_ORDER_TYPE order_type);
    bool OrderCheck(const MqlTradeRequest &m_request, MqlTradeCheckResult &m_check_result);
    bool OrderSend(const MqlTradeRequest &m_request, MqlTradeResult &m_result);
    //--- info methods
    void PrintRequest(void) const;
    void PrintResult(void) const;
    //--- positions
    string FormatPositionType(string &str, const uint type) const;
    //--- orders
    string FormatOrderType(string &str, const uint type) const;
    string FormatOrderStatus(string &str, const uint status) const;
    string FormatOrderTypeTime(string &str, const uint type) const;
   string            FormatOrderPrice(string &str,const double price_order,const double price_trigger,const uint digits) const;
   //--- trade request
   string            FormatRequest(string &str,const MqlTradeRequest &m_request) const;
   string            FormatRequestResult(string &str,const MqlTradeRequest &m_request,const MqlTradeResult &m_result) const;
//--- trade result description
    string GetRetcodeDescription(const int code);
    //--- helpers
    double RoundToStep(double value, const string symbol);
    double GetRisk(double volume, double entry, double sl, string symbol);
protected:
   bool              FillingCheck(const string symbol);
   bool              ExpirationCheck(const string symbol);
   bool              OrderTypeCheck(const string symbol);
   void              ClearStructures(void);
   bool              IsStopped(const string function);
   bool              IsHedging(void) const { return(m_margin_mode==ACCOUNT_MARGIN_MODE_RETAIL_HEDGING); }
   //--- position select depending on netting or hedging
   bool              SelectPosition(const string symbol);
  };
//+------------------------------------------------------------------+
//| Constructor                                                      |
//+------------------------------------------------------------------+
CTrade::CTrade(void) : m_async_mode(false),
                       m_magic(0),
                       m_deviation(10),
                       m_type_filling(ORDER_FILLING_FOK),
                       m_log_level(LOG_LEVEL_ERRORS)
  {
   SetMarginMode();
//--- initialize protected data
   ClearStructures();
//--- check programm mode
   if(MQL5InfoInteger(MQL5_TESTING))
      m_log_level=LOG_LEVEL_ALL;
   if(MQL5InfoInteger(MQL5_OPTIMIZATION))
      m_log_level=LOG_LEVEL_NO;
  }
//+------------------------------------------------------------------+
//| Destructor                                                       |
//+------------------------------------------------------------------+
CTrade::~CTrade(void)
  {
  }
// Placeholder function definitions (assuming these return strings and take no parameters)

// Returns a string for the request action
string FormatRequest()
{
   return "Request Action";
}

// Returns a string for the order type
string FormatOrderType() 
{
   return "Order Type";
}

// Returns a string for the order type filling
string FormatOrderTypeFilling()
{
   return "Order Type Filling";
}

// Returns a string for the order type time
string FormatOrderTypeTime()
{
   return "Order Type Time";
}

// Returns a string for the request result
string FormatRequestResult()
{
   return "Request Result";
}

//+------------------------------------------------------------------+ 
//| Get the request structure                                        |
//+------------------------------------------------------------------+
void Request(MqlTradeRequest &m_request)
{
   m_request.action      = m_request.action;
   m_request.magic       = m_request.magic;
   m_request.order       = m_request.order;
   m_request.symbol      = m_request.symbol;
   m_request.volume      = m_request.volume;
   m_request.price       = m_request.price;
   m_request.stoplimit   = m_request.stoplimit;
   m_request.sl          = m_request.sl;
   m_request.tp          = m_request.tp;
   m_request.deviation   = m_request.deviation;
   m_request.type        = m_request.type;
   m_request.type_filling = m_request.type_filling;
   m_request.type_time   = m_request.type_time;
   m_request.expiration  = m_request.expiration;
   m_request.comment     = m_request.comment;
   m_request.position    = m_request.position;
   m_request.position_by = m_request.position_by;
}

//+------------------------------------------------------------------+
//| Get the trade action as string                                   |
//+------------------------------------------------------------------+
string RequestActionDescription(void)
{
   return FormatRequest(); // Calls FormatRequest to get action description
}

//+------------------------------------------------------------------+
//| Get the order type as string                                     |
//+------------------------------------------------------------------+
string RequestTypeDescription(void)
{
   return FormatOrderType(); // Calls FormatOrderType to get type description
}

//+------------------------------------------------------------------+
//| Get the order type filling as string                             |
//+------------------------------------------------------------------+
string RequestTypeFillingDescription(void)
{
   return FormatOrderTypeFilling(); // Calls FormatOrderTypeFilling to get filling description
}

//+------------------------------------------------------------------+
//| Get the order type time as string                                |
//+------------------------------------------------------------------+
string RequestTypeTimeDescription(void)
{
   return FormatOrderTypeTime(); // Calls FormatOrderTypeTime to get time description
}

//+------------------------------------------------------------------+
//| Get the result structure                                         |
//+------------------------------------------------------------------+
void Result(MqlTradeResult &m_result)
{
   m_result.retcode         = m_result.retcode;
   m_result.deal            = m_result.deal;
   m_result.order           = m_result.order;
   m_result.volume          = m_result.volume;
   m_result.price           = m_result.price;
   m_result.bid             = m_result.bid;
   m_result.ask             = m_result.ask;
   m_result.comment         = m_result.comment;
   m_result.request_id      = m_result.request_id;
   m_result.retcode_external = m_result.retcode_external;
}

//+------------------------------------------------------------------+
//| Get the retcode value as string                                  |
//+------------------------------------------------------------------+
string ResultRetcodeDescription(void)
{
   return FormatRequestResult(); // Calls FormatRequestResult to get retcode description
}

//+------------------------------------------------------------------+
//| Get the check result structure                                   |
//+------------------------------------------------------------------+
void CheckResult(MqlTradeCheckResult &m_check_result)
{
   m_check_result.retcode     = m_check_result.retcode;
   m_check_result.balance     = m_check_result.balance;
   m_check_result.equity      = m_check_result.equity;
   m_check_result.profit      = m_check_result.profit;
   m_check_result.margin      = m_check_result.margin;
   m_check_result.margin_free = m_check_result.margin_free;
   m_check_result.margin_level = m_check_result.margin_level;
   m_check_result.comment     = m_check_result.comment;
}

//+------------------------------------------------------------------+
//| Get the check retcode value as string                            |
//+------------------------------------------------------------------+
string CheckResultRetcodeDescription(void)
{
   return FormatRequestResult(); // Calls FormatRequestResult to get check retcode description
}

//+------------------------------------------------------------------+
//| Open position                                                    |
//+------------------------------------------------------------------+
bool CTrade::PositionOpen(const string symbol, const ENUM_ORDER_TYPE order_type, const double volume,
                          const double price, const double sl, const double tp, const string comment)
{
   //--- check stopped
   if (IsStopped(__FUNCTION__))
      return(false);
   //--- clean
   ClearStructures();
   //--- check
   if (order_type != ORDER_TYPE_BUY && order_type != ORDER_TYPE_SELL)
   {
      m_result.retcode = TRADE_RETCODE_INVALID;
      m_result.comment = "Invalid order type";
      return(false);
   }
   //--- setting request
   m_request.action = TRADE_ACTION_DEAL;
   m_request.symbol = symbol;
   m_request.magic = m_magic;
   m_request.volume = volume;
   m_request.type = order_type;
   m_request.price = price;
   m_request.sl = sl;
   m_request.tp = tp;
   m_request.deviation = m_deviation;
   //--- check order type
   if (!OrderTypeCheck(symbol))
      return(false);
   //--- check filling
   if (!FillingCheck(symbol))
      return(false);
   m_request.comment = comment;
   //--- action and return the result
   return(OrderSend(m_request, m_result));
}
//+------------------------------------------------------------------+
//| Modify specified opened position                                 |
//+------------------------------------------------------------------+
bool CTrade::PositionModify(const string symbol, const double sl, const double tp)
{
   //--- check stopped
   if (IsStopped(__FUNCTION__))
      return(false);
   //--- check position existence
   if (!SelectPosition(symbol))
      return(false);
   //--- clean
   ClearStructures();
   //--- setting request
   m_request.action = TRADE_ACTION_SLTP;
   m_request.symbol = symbol;
   m_request.magic = m_magic;
   m_request.sl = sl;
   m_request.tp = tp;
   m_request.position = PositionGetInteger(POSITION_TICKET);
   //--- action and return the result
   return(OrderSend(m_request, m_result));
}
//+------------------------------------------------------------------+
//| Modify specified opened position                                 |
//+------------------------------------------------------------------+
bool CTrade::PositionModify(const ulong ticket, const double sl, const double tp)
{
   //--- check stopped
   if (IsStopped(__FUNCTION__))
      return(false);
   //--- check position existence
   if (!PositionSelectByTicket(ticket))
      return(false);
   //--- clean
   ClearStructures();
   //--- setting request
   m_request.action = TRADE_ACTION_SLTP;
   m_request.position = ticket;
   m_request.symbol = PositionGetString(POSITION_SYMBOL);
   m_request.magic = m_magic;
   m_request.sl = sl;
   m_request.tp = tp;
   //--- action and return the result
   return(OrderSend(m_request, m_result));
}
//+------------------------------------------------------------------+
//| Close specified opened position                                  |
//+------------------------------------------------------------------+
bool CTrade::PositionClose(const string symbol, const ulong deviation)
{
   bool partial_close = false;
   int retry_count = 10;
   uint retcode = TRADE_RETCODE_REJECT;
   //--- check stopped
   if (IsStopped(__FUNCTION__))
      return(false);
   //--- clean
   ClearStructures();
   //--- check filling
   if (!FillingCheck(symbol))
      return(false);
   do
   {
      //--- check
      if (SelectPosition(symbol))
      {
         if ((ENUM_POSITION_TYPE)PositionGetInteger(POSITION_TYPE) == POSITION_TYPE_BUY)
         {
            //--- prepare request for close BUY position
            m_request.type = ORDER_TYPE_SELL;
            m_request.price = SymbolInfoDouble(symbol, SYMBOL_BID);
         }
         else
         {
            //--- prepare request for close SELL position
            m_request.type = ORDER_TYPE_BUY;
            m_request.price = SymbolInfoDouble(symbol, SYMBOL_ASK);
         }
      }
      else
      {
         //--- position not found
         m_result.retcode = retcode;
         return(false);
      }
      //--- setting request
      m_request.action = TRADE_ACTION_DEAL;
      m_request.symbol = symbol;
      m_request.volume = PositionGetDouble(POSITION_VOLUME);
      m_request.magic = m_magic;
      m_request.deviation = (deviation == ULONG_MAX) ? m_deviation : deviation;
      m_request.position = PositionGetInteger(POSITION_TICKET);
      //--- check volume
      double max_volume = SymbolInfoDouble(symbol, SYMBOL_VOLUME_MAX);
      if (m_request.volume > max_volume)
      {
         m_request.volume = max_volume;
         partial_close = true;
      }
      else
         partial_close = false;
      //--- hedging? just send order
      if (IsHedging())
         return(OrderSend(m_request, m_result));
      //--- order send
      if (!OrderSend(m_request, m_result))
      {
         if (--retry_count != 0)
            continue;
         if (retcode == TRADE_RETCODE_DONE_PARTIAL)
            m_result.retcode = retcode;
         return(false);
      }
      //--- WARNING. If position volume exceeds the maximum volume allowed for deal,
      //--- and when the asynchronous trade mode is on, for safety reasons, position is closed not completely,
      //--- but partially. It is decreased by the maximum volume allowed for deal.
      if (m_async_mode)
         break;
      retcode = TRADE_RETCODE_DONE_PARTIAL;
      if (partial_close)
         Sleep(1000);
   }
   while (partial_close);
   //--- succeed
   return(true);
}

//+------------------------------------------------------------------+
//| Close specified opened position                                  |
//+------------------------------------------------------------------+
bool CTrade::PositionClose(const ulong ticket, const ulong deviation)
{
   //--- check stopped
   if(IsStopped(__FUNCTION__))
      return(false);
   //--- check position existence
   if(!PositionSelectByTicket(ticket))
      return(false);
   string symbol = PositionGetString(POSITION_SYMBOL);
   //--- clean
   ClearStructures();
   //--- check filling
   if(!FillingCheck(symbol))
      return(false);
   //--- check position type
   if((ENUM_POSITION_TYPE)PositionGetInteger(POSITION_TYPE) == POSITION_TYPE_BUY)
   {
      //--- prepare request for close BUY position
      m_request.type = ORDER_TYPE_SELL;
      m_request.price = SymbolInfoDouble(symbol, SYMBOL_BID);
   }
   else
   {
      //--- prepare request for close SELL position
      m_request.type = ORDER_TYPE_BUY;
      m_request.price = SymbolInfoDouble(symbol, SYMBOL_ASK);
   }
   //--- setting request
   m_request.action = TRADE_ACTION_DEAL;
   m_request.position = ticket;
   m_request.symbol = symbol;
   m_request.volume = PositionGetDouble(POSITION_VOLUME);
   m_request.magic = m_magic;
   m_request.deviation = (deviation == ULONG_MAX) ? m_deviation : deviation;
   //--- close position
   return(OrderSend(m_request, m_result));
}

//+------------------------------------------------------------------+
//| Close one position by other                                      |
//+------------------------------------------------------------------+
bool CTrade::PositionCloseBy(const ulong ticket, const ulong ticket_by)
{
   //--- check stopped
   if(IsStopped(__FUNCTION__))
      return(false);
   //--- check hedging mode
   if(!IsHedging())
      return(false);
   //--- check position existence
   if(!PositionSelectByTicket(ticket))
      return(false);
   string symbol = PositionGetString(POSITION_SYMBOL);
   ENUM_POSITION_TYPE type = (ENUM_POSITION_TYPE)PositionGetInteger(POSITION_TYPE);
   if(!PositionSelectByTicket(ticket_by))
      return(false);
   string symbol_by = PositionGetString(POSITION_SYMBOL);
   ENUM_POSITION_TYPE type_by = (ENUM_POSITION_TYPE)PositionGetInteger(POSITION_TYPE);
   //--- check positions
   if(type == type_by)
      return(false);
   if(symbol != symbol_by)
      return(false);
   //--- clean
   ClearStructures();
   //--- check filling
   if(!FillingCheck(symbol))
      return(false);
   //--- setting request
   m_request.action = TRADE_ACTION_CLOSE_BY;
   m_request.position = ticket;
   m_request.position_by = ticket_by;
   m_request.magic = m_magic;
   //--- close position
   return(OrderSend(m_request, m_result));
}

//+------------------------------------------------------------------+
//| Partial close specified opened position (for hedging mode only)  |
//+------------------------------------------------------------------+
bool CTrade::PositionClosePartial(const string symbol, const double volume, const ulong deviation)
{
   uint retcode = TRADE_RETCODE_REJECT;
   //--- check stopped
   if(IsStopped(__FUNCTION__))
      return(false);
   //--- for hedging mode only
   if(!IsHedging())
      return(false);
   //--- clean
   ClearStructures();
   //--- check filling
   if(!FillingCheck(symbol))
      return(false);
   //--- check position
   if(SelectPosition(symbol))
   {
      if((ENUM_POSITION_TYPE)PositionGetInteger(POSITION_TYPE) == POSITION_TYPE_BUY)
      {
         //--- prepare request for close BUY position
         m_request.type = ORDER_TYPE_SELL;
         m_request.price = SymbolInfoDouble(symbol, SYMBOL_BID);
      }
      else
      {
         //--- prepare request for close SELL position
         m_request.type = ORDER_TYPE_BUY;
         m_request.price = SymbolInfoDouble(symbol, SYMBOL_ASK);
      }
   }
   else
   {
      //--- position not found
      m_result.retcode = retcode;
      return(false);
   }
   //--- check volume
   double position_volume = PositionGetDouble(POSITION_VOLUME);
   if(position_volume > volume)
      position_volume = volume;
   //--- setting request
   m_request.action = TRADE_ACTION_DEAL;
   m_request.symbol = symbol;
   m_request.volume = position_volume;
   m_request.magic = m_magic;
   m_request.deviation = (deviation == ULONG_MAX) ? m_deviation : deviation;
   m_request.position = PositionGetInteger(POSITION_TICKET);
   //--- hedging? just send order
   return(OrderSend(m_request, m_result));
}

//+------------------------------------------------------------------+
//| Partial close specified opened position (for hedging mode only)  |
//+------------------------------------------------------------------+
bool CTrade::PositionClosePartial(const ulong ticket, const double volume, const ulong deviation)
{
   //--- check stopped
   if(IsStopped(__FUNCTION__))
      return(false);
   //--- for hedging mode only
   if(!IsHedging())
      return(false);
   //--- check position existence
   if(!PositionSelectByTicket(ticket))
      return(false);
   string symbol = PositionGetString(POSITION_SYMBOL);
   //--- clean
   ClearStructures();
   //--- check filling
   if(!FillingCheck(symbol))
      return(false);
   //--- check position type
   if((ENUM_POSITION_TYPE)PositionGetInteger(POSITION_TYPE) == POSITION_TYPE_BUY)
   {
      //--- prepare request for close BUY position
      m_request.type = ORDER_TYPE_SELL;
      m_request.price = SymbolInfoDouble(symbol, SYMBOL_BID);
   }
   else
   {
      //--- prepare request for close SELL position
      m_request.type = ORDER_TYPE_BUY;
      m_request.price = SymbolInfoDouble(symbol, SYMBOL_ASK);
   }
   //--- check volume
   double position_volume = PositionGetDouble(POSITION_VOLUME);
   if(position_volume > volume)
      position_volume = volume;
   //--- setting request
   m_request.action = TRADE_ACTION_DEAL;
   m_request.position = ticket;
   m_request.symbol = symbol;
   m_request.volume = position_volume;
   m_request.magic = m_magic;
   m_request.deviation = (deviation == ULONG_MAX) ? m_deviation : deviation;
   //--- close position
   return(OrderSend(m_request, m_result));
}
)


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