Robot_MACD

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

//|                          Robot_MACD(barabashkakvn's edition).mq5 |

//|                                                     Tokman Yuriy |

//|                                            yuriytokman@gmail.com |

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

#include <Trade\PositionInfo.mqh>

#include <Trade\Trade.mqh>

#include <Trade\SymbolInfo.mqh>  

#include <Trade\AccountInfo.mqh>

CPositionInfo  m_position;                   // trade position object

CTrade         m_trade;                      // trading object

CSymbolInfo    m_symbol;                     // symbol info object

CAccountInfo   m_account;                    // account info wrapper

//--- input parameters

input ushort   InpTakeProfit=300;

input double   Lots=1;

//---

ulong          m_magic=15489;                // magic number

double         ExtTakeProfit=0.0;

ENUM_ACCOUNT_MARGIN_MODE m_margin_mode;

double         m_adjusted_point;             // point value adjusted for 3 or 5 points

int            handle_iMACD;                 // variable for storing the handle of the iMACD indicator 

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

//| Expert initialization function                                   |

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

int OnInit()

  {

//SetMarginMode();

//if(!IsHedging())

//  {

//   Print("Hedging only!");

//   return(INIT_FAILED);

//  }

//---

   m_symbol.Name(Symbol());                  // sets symbol name

   if(!RefreshRates())

     {

      Print("Error RefreshRates. Bid=",DoubleToString(m_symbol.Bid(),Digits()),

            ", Ask=",DoubleToString(m_symbol.Ask(),Digits()));

      return(INIT_FAILED);

     }

   m_symbol.Refresh();

//---

   m_trade.SetExpertMagicNumber(m_magic);    // sets magic number

//--- 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=m_symbol.Point()*digits_adjust;



   ExtTakeProfit=InpTakeProfit*m_adjusted_point;

//--- create handle of the indicator iMACD

   handle_iMACD=iMACD(Symbol(),Period(),12,26,9,PRICE_CLOSE);

//--- if the handle is not created 

   if(handle_iMACD==INVALID_HANDLE)

     {

      //--- tell about the failure and output the error code 

      PrintFormat("Failed to create handle of the iMACD indicator for the symbol %s/%s, error code %d",

                  Symbol(),

                  EnumToString(Period()),

                  GetLastError());

      //--- the indicator is stopped early 

      return(INIT_FAILED);

     }

//---

   return(INIT_SUCCEEDED);

  }

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

//| Expert deinitialization function                                 |

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

void OnDeinit(const int reason)

  {

//---



  }

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

//| Expert tick function                                             |

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

void OnTick()

  {

   double MacdCurrent=iMACDGet(MAIN_LINE,0);

   double MacdPrevious=iMACDGet(MAIN_LINE,1);

   double SignalCurrent=iMACDGet(SIGNAL_LINE,0);

   double SignalPrevious=iMACDGet(SIGNAL_LINE,1);



   int total=0;                           // :>;8G5AB2> ?>78F89 ?> 40==><C A8<2>;C 8 40==><C Magic

   for(int i=PositionsTotal()-1;i>=0;i--) // returns the number of open positions

      if(m_position.SelectByIndex(i))     // selects the position by index for further access to its properties

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

           {

            total++;

            if(m_position.PositionType()==POSITION_TYPE_BUY)

              {

               //--- CA;>285 70:@KB8O

               if(MacdCurrent<SignalCurrent && MacdPrevious>SignalPrevious)

                 {

                  m_trade.PositionClose(m_position.Ticket());

                  return;

                 }

              }



            if(m_position.PositionType()==POSITION_TYPE_SELL)

              {

               //--- CA;>285 70:@KB8O

               if(MacdCurrent>SignalCurrent && MacdPrevious<SignalPrevious)

                 {

                  m_trade.PositionClose(m_position.Ticket());

                  return;

                 }

              }

           }



   if(total==0)

     {

      //--- ?@>25@:0 A2>1>4=KE A@54AB2

      if(m_account.FreeMargin()<(1000*Lots)) //:>;8G5AB2> A2>1>4=KE A@54AB2

        {

         Print("54>AB0B>G=> A@54AB2 = ",DoubleToString(m_account.FreeMargin(),2));

         return;

        }

      //--- >B:@KB85 4;8==>9 ?>78F88

      if(MacdCurrent>SignalCurrent && MacdPrevious<SignalPrevious && MacdCurrent<0 && SignalCurrent<0)

        {

         if(!RefreshRates())

            return;



         if(m_trade.Buy(Lots,NULL,m_symbol.Ask(),0.0,m_symbol.Ask()+ExtTakeProfit))

           {

            Print("Buy -> true. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription(),

                  ", ticket of deal: ",m_trade.ResultDeal());

           }

         else

           {

            Print("Buy -> false. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription(),

                  ", ticket of deal: ",m_trade.ResultDeal());

           }

         return;

        }

      //--- >B:@KB85 :>@>B:>9 ?>78F88

      if(MacdCurrent<SignalCurrent && MacdPrevious>SignalPrevious && MacdCurrent>0 && SignalCurrent>0)

        {

         if(!RefreshRates())

            return;



         if(m_trade.Sell(Lots,NULL,m_symbol.Bid(),0.0,m_symbol.Bid()-ExtTakeProfit))

           {

            Print("Sell -> true. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription(),

                  ", ticket of deal: ",m_trade.ResultDeal());

           }

         else

           {

            Print("Sell -> false. Result Retcode: ",m_trade.ResultRetcode(),

                  ", description of result: ",m_trade.ResultRetcodeDescription(),

                  ", ticket of deal: ",m_trade.ResultDeal());

           }

         return;

        }

     }

//---

   return;

  }

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

//| 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);

  }

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

//| Get value of buffers for the iMACD                               |

//|  the buffer numbers are the following:                           |

//|   0 - MAIN_LINE, 1 - SIGNAL_LINE                                 |

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

double iMACDGet(const int buffer,const int index)

  {

   double MACD[1];

//--- reset error code 

   ResetLastError();

//--- fill a part of the iMACDBuffer array with values from the indicator buffer that has 0 index 

   if(CopyBuffer(handle_iMACD,buffer,index,1,MACD)<0)

     {

      //--- if the copying fails, tell the error code 

      PrintFormat("Failed to copy data from the iMACD indicator, error code %d",GetLastError());

      //--- quit with zero result - it means that the indicator is considered as not calculated 

      return(0.0);

     }

   return(MACD[0]);

  }

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