Wrong in calculation

[amando]

Hello,

i Use MT5 with Hedging mode and i want to know, the last open position volume

double lastLot(const string sym,const int magic)  //aller offenen Positionenauf diesem Symbol und dieser MN
  {
   double LastLot=0;
   if(PositionsTotal()>0)
     {
      for(int i=0; i<PositionsTotal(); i++)
        {

         if(PositionGetString(POSITION_SYMBOL)== sym &&
            PositionGetInteger(POSITION_MAGIC)== magic
            )
           {
            LastLot=0;
            LastLot=PositionGetDouble(POSITION_VOLUME);
           }
        }
     }
   Print(LastLot);
   return(LastLot);
  }

this works fine, as long i have only 1 open position

as soon i have 2 open position, it will be used the Volume for Position 1 and Position 2

LastLot = Volume1 + Volume2

i geht the last ticket number in the same way, so is this an bug from MT5 or does i have a mind problem 

amando

[Alain Verleyen]

Mind problem ;-)

[amando]

Alain Verleyen:
Mind problem ;-)

Can you eplain it a bit more?

[Alain Verleyen]

amando:

Can you eplain it a bit more?

Please read the documentation before posting.

To ensure receipt of fresh data about a position, it is recommended to call PositionSelect() right before referring to them.

[amando]

Alain Verleyen:

Please read the documentation before posting.

sorry you are wrong,

double lastLot(const string sym,const int magic) //aller offenen Positionenauf diesem Symbol und dieser MN
  {
   double LastLot=0;
   if(PositionsTotal()>0)
     {
      for(int i=0; i<PositionsTotal(); i++)
        {
         PositionSelect(_Symbol);
         if(PositionGetString(POSITION_SYMBOL)== sym &&
            PositionGetInteger(POSITION_MAGIC)== magic
            )
           {
            LastLot=0;
            LastLot=PositionGetDouble(POSITION_VOLUME);
           }
        }
     }
   Print(LastLot);
   return(LastLot);
  }

even with position select MT5 calculate wrong

[Alain Verleyen]

amando:

sorry you are wrong,

even with position select MT5 calculate wrong

Ok, for sure it's certainly MT5 or Metaquotes, or some cosmic ray or my fault, certainly not yours.

[William Roeder]

amando: i geht the last ticket number in the same way, so is this an bug from MT5 or does i have a mind problem

You have the "mind problem." Perhaps you should read the manual.

For the "netting" interpretation of positions only one position can exist for a symbol at any moment of time.

If individual positions are allowed ... In this case, PositionSelect will select a position with the lowest ticket.
          Trade Functions / PositionSelect - Reference on algorithmic/automated trading language for MetaTrader 5

You only get one.

amando: sorry you are wrong,

You are wrong.