Questions from Beginners MQL5 MT5 MetaTrader 5 - page 710
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not working, sadly.
ShortModified and LongModified methods.
{
protected:
double m_adjusted_point; // point value adjusted for 3 or 5 points
CTrade m_trade; // trading object
CSymbolInfo m_symbol; // symbol info object
CPositionInfo m_position; // trade position object
CAccountInfo m_account; // account info wrapper
//--- indicators
int m_handle_macd; // MACD indicator handle
int m_handle_ema; // moving average indicator handle
//--- indicator buffers
double m_buff_MACD_main[]; // MACD indicator main buffer
double m_buff_MACD_signal[]; // MACD indicator signal buffer
double m_buff_EMA[]; // EMA indicator buffer
//--- indicator data for processing
double m_macd_current;
double m_macd_previous;
double m_signal_current;
double m_signal_previous;
double m_ema_current;
double m_ema_previous;
//---
double m_macd_open_level;
double m_macd_close_level;
double m_traling_stop;
double m_take_profit;
public:
CSampleExpert(void);
~CSampleExpert(void);
bool Init(void);
void Deinit(void);
bool Processing(void);
protected:
bool InitCheckParameters(const int digits_adjust);
bool InitIndicators(void);
bool LongClosed(void);
bool ShortClosed(void);
bool LongModified(void);
bool ShortModified(void);
bool LongOpened(void);
bool ShortOpened(void);
};
They are entered in the class. I need to add them as a separate function .... ?
I can't figure out how to make them. Tried to find examples of adding existing trailing classes, couldn't find any.
{
protected:
double m_adjusted_point; // point value adjusted for 3 or 5 points
CTrade m_trade; // trading object
CSymbolInfo m_symbol; // symbol info object
CPositionInfo m_position; // trade position object
CAccountInfo m_account; // account info wrapper
//--- indicators
int m_handle_macd; // MACD indicator handle
int m_handle_ema; // moving average indicator handle
//--- indicator buffers
double m_buff_MACD_main[]; // MACD indicator main buffer
double m_buff_MACD_signal[]; // MACD indicator signal buffer
double m_buff_EMA[]; // EMA indicator buffer
//--- indicator data for processing
double m_macd_current;
double m_macd_previous;
double m_signal_current;
double m_signal_previous;
double m_ema_current;
double m_ema_previous;
//---
double m_macd_open_level;
double m_macd_close_level;
double m_traling_stop;
double m_take_profit;
public:
CSampleExpert(void);
~CSampleExpert(void);
bool Init(void);
void Deinit(void);
bool Processing(void);
protected:
bool InitCheckParameters(const int digits_adjust);
bool InitIndicators(void);
bool LongClosed(void);
bool ShortClosed(void);
bool LongModified(void);
bool ShortModified(void);
bool LongOpened(void);
bool ShortOpened(void);
};
They are entered in the class. I need to add them as a separate function .... ?
I can't figure out how to make them. Tried to find examples of adding existing trailing classes, couldn't find any.
You just need to copy it into your code.
void LongModified()
{
double m_traling_stop=InpTrailingStop*m_adjusted_point;
bool res=false;
//--- check for trailing stop
if(InpTrailingStop>0)
{
if(m_symbol.Bid()-m_position.PriceOpen()>m_adjusted_point*InpTrailingStop)
{
double sl=NormalizeDouble(m_symbol.Bid()-m_traling_stop,m_symbol.Digits());
double tp=m_position.TakeProfit();
if(m_position.StopLoss()<sl || m_position.StopLoss()==0.0)
{
//--- modify position
if(m_trade.PositionModify(Symbol(),sl,tp))
printf("Long position by %s to be modified",Symbol());
else
{
printf("Error modifying position by %s : '%s'",Symbol(),m_trade.ResultComment());
printf("Modify parameters : SL=%f,TP=%f",sl,tp);
}
//--- modified and must exit from expert
res=true;
}
}
}
//--- result
return(res);
}
gives an error
'return' - 'void' function returns a value traal.mq5 482 4
void LongModified()
{
double m_traling_stop=InpTrailingStop*m_adjusted_point;
bool res=false;
//--- check for trailing stop
if(InpTrailingStop>0)
{
if(m_symbol.Bid()-m_position.PriceOpen()>m_adjusted_point*InpTrailingStop)
{
double sl=NormalizeDouble(m_symbol.Bid()-m_traling_stop,m_symbol.Digits());
double tp=m_position.TakeProfit();
if(m_position.StopLoss()<sl || m_position.StopLoss()==0.0)
{
//--- modify position
if(m_trade.PositionModify(Symbol(),sl,tp))
printf("Long position by %s to be modified",Symbol());
else
{
printf("Error modifying position by %s : '%s'",Symbol(),m_trade.ResultComment());
printf("Modify parameters : SL=%f,TP=%f",sl,tp);
}
//--- modified and must exit from expert
res=true;
}
}
}
//--- result
return(res);
}
gives an error
'return' - 'void' function returns a value traal.mq5 482 4
Example of an EA: on a hadge account we open two opposite positions at once - without any stops.
There are two parameters in the EA settings:
//| TrailingStop.mq5 |
//| Copyright © 2016, Vladimir Karputov |
//| http://wmua.ru/slesar/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2016, Vladimir Karputov"
#property link "http://wmua.ru/slesar/"
#property version "1.00"
#property description "Пример TrailingStop"
#include <Trade\PositionInfo.mqh>
#include <Trade\Trade.mqh>
#include <Trade\SymbolInfo.mqh>
CPositionInfo m_position; // trade position object
CTrade m_trade; // trading object
CSymbolInfo m_symbol; // symbol info object
//--- input parameters
input ushort InpTrailingStop =10; // TrailingStop (in pips)
input ushort InpTrailingStep =5; // TrailingStep (in pips)
//---
double ExtTrailingStop=0.0;
double ExtTrailingStep=0.0;
ulong m_magic=15489; // magic number
ENUM_ACCOUNT_MARGIN_MODE m_margin_mode;
bool FirstStart=true; // true - first start
double m_adjusted_point; // point value adjusted for 3 or 5 points
//+------------------------------------------------------------------+
//| Expert initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
SetMarginMode();
if(!IsHedging())
{
Print("Hedging only!");
return(INIT_FAILED);
}
m_symbol.Name(Symbol()); // sets symbol name
m_symbol.Refresh(); // refreshes the symbol data
if(!RefreshRates())
{
Print("Error RefreshRates. Bid=",DoubleToString(m_symbol.Bid(),Digits()),
", Ask=",DoubleToString(m_symbol.Ask(),Digits()));
return(INIT_FAILED);
}
//--- tuning for 3 or 5 digits
int digits_adjust=1;
if(m_symbol.Digits()==3 || m_symbol.Digits()==5)
digits_adjust=10;
m_adjusted_point=digits_adjust*m_symbol.Point();
ExtTrailingStop=InpTrailingStop*m_adjusted_point;
ExtTrailingStep=InpTrailingStep*m_adjusted_point;
m_trade.SetExpertMagicNumber(m_magic); // sets magic number
FirstStart=true;
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Expert deinitialization function |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
//---
}
//+------------------------------------------------------------------+
//| Expert tick function |
//+------------------------------------------------------------------+
void OnTick()
{
//---
if(FirstStart)
{
m_trade.Buy(0.01);
m_trade.Sell(0.01);
FirstStart=false;
}
//--- TrailingStop
if(!RefreshRates())
return;
//--- при таком методе мы будет сюда попадать на каждом тике.
for(int i=PositionsTotal()-1;i>=0;i--)
if(m_position.SelectByIndex(i))
if(m_position.Symbol()==Symbol() && m_position.Magic()==m_magic)
{
//--- TrailingStop -> подтягивание StopLoss у ПРИБЫЛЬНОЙ позиции
if(m_position.PositionType()==POSITION_TYPE_BUY)
{
//--- когда у позиции ещё нет StopLoss
if(m_position.StopLoss()==0)
{
//--- пока StopLoss равен 0.0, TrailingStep не учитываем
if(m_symbol.Bid()-ExtTrailingStop>m_position.PriceOpen())
{
//--- модификация позиции
m_trade.PositionModify(m_position.Ticket(),m_position.PriceOpen(),0.0);
}
}
//--- у позиции уже есть StopLoss
else
{
//--- теперь TrailingStep нужно учитывать, иначе мы будет модифицировать
//--- поизцию НА КАЖДОМ ТИКЕ, а это ПЛОХО
if(m_symbol.Bid()-ExtTrailingStop-ExtTrailingStep>m_position.StopLoss())
{
//--- модификация позиции
m_trade.PositionModify(m_position.Ticket(),
NormalizeDouble(m_symbol.Bid()-ExtTrailingStop,m_symbol.Digits()),0.0);
}
}
}
if(m_position.PositionType()==POSITION_TYPE_SELL)
{
//--- когда у позиции ещё нет StopLoss
if(m_position.StopLoss()==0)
{
//--- пока StopLoss равен 0.0, TrailingStep не учитываем
if(m_symbol.Ask()+ExtTrailingStop<m_position.PriceOpen())
{
//--- модификация позиции
m_trade.PositionModify(m_position.Ticket(),m_position.PriceOpen(),0.0);
}
}
//--- у позиции уже есть StopLoss
else
{
//--- теперь TrailingStep нужно учитывать, иначе мы будет модифицировать
//--- поизцию НА КАЖДОМ ТИКЕ, а это ПЛОХО
if(m_symbol.Bid()+ExtTrailingStop+ExtTrailingStep<m_position.StopLoss())
{
//--- модификация позиции
m_trade.PositionModify(m_position.Ticket(),
NormalizeDouble(m_symbol.Ask()+ExtTrailingStop,m_symbol.Digits()),0.0);
}
}
}
}
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void SetMarginMode(void)
{
m_margin_mode=(ENUM_ACCOUNT_MARGIN_MODE)AccountInfoInteger(ACCOUNT_MARGIN_MODE);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
bool IsHedging(void)
{
return(m_margin_mode==ACCOUNT_MARGIN_MODE_RETAIL_HEDGING);
}
//+------------------------------------------------------------------+
//| Refreshes the symbol quotes data |
//+------------------------------------------------------------------+
bool RefreshRates()
{
//--- refresh rates
if(!m_symbol.RefreshRates())
return(false);
//--- protection against the return value of "zero"
if(m_symbol.Ask()==0 || m_symbol.Bid()==0)
return(false);
//---
return(true);
}
//+------------------------------------------------------------------+
Example of an EA: on a hadge account we open two opposite positions at once - without any stops.
There are two parameters in the EA settings:
//| TrailingStop.mq5 |
//| Copyright © 2016, Vladimir Karputov |
//| http://wmua.ru/slesar/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2016, Vladimir Karputov"
#property link "http://wmua.ru/slesar/"
#property version "1.00"
#property description "Пример TrailingStop"
#include <Trade\PositionInfo.mqh>
#include <Trade\Trade.mqh>
#include <Trade\SymbolInfo.mqh>
CPositionInfo m_position; // trade position object
CTrade m_trade; // trading object
CSymbolInfo m_symbol; // symbol info object
//--- input parameters
input ushort InpTrailingStop =10; // TrailingStop (in pips)
input ushort InpTrailingStep =5; // TrailingStep (in pips)
//---
double ExtTrailingStop=0.0;
double ExtTrailingStep=0.0;
ulong m_magic=15489; // magic number
ENUM_ACCOUNT_MARGIN_MODE m_margin_mode;
bool FirstStart=true; // true - first start
double m_adjusted_point; // point value adjusted for 3 or 5 points
//+------------------------------------------------------------------+
//| Expert initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
SetMarginMode();
if(!IsHedging())
{
Print("Hedging only!");
return(INIT_FAILED);
}
m_symbol.Name(Symbol()); // sets symbol name
m_symbol.Refresh(); // refreshes the symbol data
if(!RefreshRates())
{
Print("Error RefreshRates. Bid=",DoubleToString(m_symbol.Bid(),Digits()),
", Ask=",DoubleToString(m_symbol.Ask(),Digits()));
return(INIT_FAILED);
}
//--- tuning for 3 or 5 digits
int digits_adjust=1;
if(m_symbol.Digits()==3 || m_symbol.Digits()==5)
digits_adjust=10;
m_adjusted_point=digits_adjust*m_symbol.Point();
ExtTrailingStop=InpTrailingStop*m_adjusted_point;
ExtTrailingStep=InpTrailingStep*m_adjusted_point;
m_trade.SetExpertMagicNumber(m_magic); // sets magic number
FirstStart=true;
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Expert deinitialization function |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
//---
}
//+------------------------------------------------------------------+
//| Expert tick function |
//+------------------------------------------------------------------+
void OnTick()
{
//---
if(FirstStart)
{
m_trade.Buy(0.01);
m_trade.Sell(0.01);
FirstStart=false;
}
//--- TrailingStop
if(!RefreshRates())
return;
//--- при таком методе мы будет сюда попадать на каждом тике.
for(int i=PositionsTotal()-1;i>=0;i--)
if(m_position.SelectByIndex(i))
if(m_position.Symbol()==Symbol() && m_position.Magic()==m_magic)
{
//--- TrailingStop -> подтягивание StopLoss у ПРИБЫЛЬНОЙ позиции
if(m_position.PositionType()==POSITION_TYPE_BUY)
{
//--- когда у позиции ещё нет StopLoss
if(m_position.StopLoss()==0)
{
//--- пока StopLoss равен 0.0, TrailingStep не учитываем
if(m_symbol.Bid()-ExtTrailingStop>m_position.PriceOpen())
{
//--- модификация позиции
m_trade.PositionModify(m_position.Ticket(),m_position.PriceOpen(),0.0);
}
}
//--- у позиции уже есть StopLoss
else
{
//--- теперь TrailingStep нужно учитывать, иначе мы будет модифицировать
//--- поизцию НА КАЖДОМ ТИКЕ, а это ПЛОХО
if(m_symbol.Bid()-ExtTrailingStop-ExtTrailingStep>m_position.StopLoss())
{
//--- модификация позиции
m_trade.PositionModify(m_position.Ticket(),
NormalizeDouble(m_symbol.Bid()-ExtTrailingStop,m_symbol.Digits()),0.0);
}
}
}
if(m_position.PositionType()==POSITION_TYPE_SELL)
{
//--- когда у позиции ещё нет StopLoss
if(m_position.StopLoss()==0)
{
//--- пока StopLoss равен 0.0, TrailingStep не учитываем
if(m_symbol.Ask()+ExtTrailingStop<m_position.PriceOpen())
{
//--- модификация позиции
m_trade.PositionModify(m_position.Ticket(),m_position.PriceOpen(),0.0);
}
}
//--- у позиции уже есть StopLoss
else
{
//--- теперь TrailingStep нужно учитывать, иначе мы будет модифицировать
//--- поизцию НА КАЖДОМ ТИКЕ, а это ПЛОХО
if(m_symbol.Bid()+ExtTrailingStop+ExtTrailingStep<m_position.StopLoss())
{
//--- модификация позиции
m_trade.PositionModify(m_position.Ticket(),
NormalizeDouble(m_symbol.Ask()+ExtTrailingStop,m_symbol.Digits()),0.0);
}
}
}
}
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
void SetMarginMode(void)
{
m_margin_mode=(ENUM_ACCOUNT_MARGIN_MODE)AccountInfoInteger(ACCOUNT_MARGIN_MODE);
}
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
bool IsHedging(void)
{
return(m_margin_mode==ACCOUNT_MARGIN_MODE_RETAIL_HEDGING);
}
//+------------------------------------------------------------------+
//| Refreshes the symbol quotes data |
//+------------------------------------------------------------------+
bool RefreshRates()
{
//--- refresh rates
if(!m_symbol.RefreshRates())
return(false);
//--- protection against the return value of "zero"
if(m_symbol.Ask()==0 || m_symbol.Bid()==0)
return(false);
//---
return(true);
}
//+------------------------------------------------------------------+
I wonder, if there are three maxima (minima), which one will index ArrayMaximum (ArrayMinimum)?
The maximum (minimum) value. This function does not have more than one output value.