TrailingStop

ÿþ//+------------------------------------------------------------------+

//|                                                 TrailingStop.mq5 |

//|                              Copyright © 2016, Vladimir Karputov |

//|                                           http://wmua.ru/slesar/ |

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

#property copyright "Copyright © 2016, Vladimir Karputov"

#property link      "http://wmua.ru/slesar/"

#property version   "1.001"

#property description "@8<5@ 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;



//--- ?@8 B0:>< <5B>45 <K 1C45B AN40 ?>?040BL =0 :064>< B8:5.

   for(int i=PositionsTotal()-1;i>=0;i--)

      if(m_position.SelectByIndex(i))

         if(m_position.Symbol()==Symbol() && m_position.Magic()==m_magic)

           {

            //--- TrailingStop -> ?>4BO3820=85 StopLoss C  +, ?>78F88

            if(m_position.PositionType()==POSITION_TYPE_BUY)

              {

               //--- :>340 C ?>78F88 5IQ =5B StopLoss

               if(m_position.StopLoss()==0)

                 {

                  //--- ?>:0 StopLoss @025= 0.0, TrailingStep =5 CG8BK205<

                  if(m_symbol.Bid()-ExtTrailingStop>m_position.PriceOpen())

                    {

                     //--- <>48D8:0F8O ?>78F88

                     m_trade.PositionModify(m_position.Ticket(),m_position.PriceOpen(),0.0);

                    }

                 }

               //--- C ?>78F88 C65 5ABL StopLoss

               else

                 {

                  //--- B5?5@L TrailingStep =C6=> CG8BK20BL, 8=0G5 <K 1C45B <>48D8F8@>20BL 

                  //--- ?>87F8N   ", 0 MB> %

                  if(m_symbol.Bid()-ExtTrailingStop-ExtTrailingStep>m_position.StopLoss())

                    {

                     //--- <>48D8:0F8O ?>78F88

                     m_trade.PositionModify(m_position.Ticket(),

                                            NormalizeDouble(m_symbol.Bid()-ExtTrailingStop,m_symbol.Digits()),0.0);

                    }

                 }

              }



            if(m_position.PositionType()==POSITION_TYPE_SELL)

              {

               //--- :>340 C ?>78F88 5IQ =5B StopLoss

               if(m_position.StopLoss()==0)

                 {

                  //--- ?>:0 StopLoss @025= 0.0, TrailingStep =5 CG8BK205<

                  if(m_symbol.Ask()+ExtTrailingStop<m_position.PriceOpen())

                    {

                     //--- <>48D8:0F8O ?>78F88

                     m_trade.PositionModify(m_position.Ticket(),m_position.PriceOpen(),0.0);

                    }

                 }

               //--- C ?>78F88 C65 5ABL StopLoss

               else

                 {

                  //--- B5?5@L TrailingStep =C6=> CG8BK20BL, 8=0G5 <K 1C45B <>48D8F8@>20BL 

                  //--- ?>87F8N   ", 0 MB> %

                  if(m_symbol.Ask()+ExtTrailingStop+ExtTrailingStep<m_position.StopLoss())

                    {

                     //--- <>48D8:0F8O ?>78F88

                     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);

  }

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