GetLastError() =0, is it error or not error

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Hi, I am getting errors showing

"EAName EURUSD, M30: EURUSD, M30, ticket# SELL TrailingProfit err=0, 1.3804"

and it appears that the EA is not modifying the SL for the selected ticket

Could anyone please advise what seems to be the problem, many thanks!!!


init()
{
if (Digits == 5 || Digits == 3)
                {    // Adjust for five (5) digit brokers.
                         pips2double = Point*10; }

}

double SL_BUY=NormalizeDouble(Bid-TrailingProfit*pips2double,Digits);   
   double SL_SELL=NormalizeDouble(Ask+TrailingProfit*pips2double,Digits);
   
        for (int cnt=total-1; cnt>=0; cnt--)
        {
         if  (
                 OrderSelect(cnt, SELECT_BY_POS)                    // select Only my orders with
                 &&  OrderMagicNumber()  == Magic                   // my magic number
                 &&  OrderSymbol()       == Symbol()            // and my pair.
                 )
                {
                 if(OrderType()==OP_BUY)                                                
                        {
                         if(OrderStopLoss()>=OrderOpenPrice())          
                          {
                                if(NormalizeDouble(OrderStopLoss(),Digits)<SL_BUY)      
                 {
                  Print(pair,", ",TimeFrameToString(tf), ", ",OrderTicket()," BUY TrailingProfit Activated.");
                                  if(!OrderModify(OrderTicket(),OrderOpenPrice(),SL_BUY,OrderTakeProfit(),0,Yellow))
                                  Print(pair,", ",TimeFrameToString(tf), ", ",OrderTicket()," BUY TrailingProfit err=", err,", ",SL_BUY);
                             }
                          }
                        }
                
                 if(OrderType()==OP_SELL)
                        {
                         if(OrderStopLoss()<=OrderOpenPrice())          
                          {
                                if(NormalizeDouble(OrderStopLoss(),Digits)>SL_SELL)
                 {
                                  Print(pair,", ",TimeFrameToString(tf),", ",OrderTicket(), " SELL TrailingProfit Activated.");
                  if(!OrderModify(OrderTicket(),OrderOpenPrice(),SL_BUY,OrderTakeProfit(),0,Yellow))
                                  Print(pair,", ",TimeFrameToString(tf), ", ",OrderTicket()," SELL TrailingProfit err=", err,", ",SL_SELL);
                             }
                          }
                        }
                }
        }
 

init() gets called once at the start of the EA . . . where is start() ?

You don't seem to be setting err to the value of the last error ? is this a copy and paste bodge of code ?

 

more info


OrderOpenPrice()=1.38509

OrderStopLoss()=1.38498

Bid was around =1.378xx

  
int init()
{
tf=Period();
         pair=Symbol();
         err=GetLastError();
         spread=GetInfo();
         total=OrdersTotal();
 if (Digits == 5 || Digits == 3)
        {    // Adjust for five (5) digit brokers.
         pips2double = Point*10; 
                 pips2point = 10;   
                 Digits.pips = 1;
    } 
        else 
        {    
                pips2double = Point;    
                pips2point =  1;   
                Digits.pips = 0; 
        }
    // OrderSend(... Slippage.Pips * pips2points, Bid - StopLossPips * pips2dbl

return(0); //end of init()
}


int start()
  {   
        
        MoveTrailingProfit();           

/*
following logics
*/

return(0);
}
int MoveTrailingProfit()
{
        double SL_BUY=NormalizeDouble(Bid-TrailingProfit*pips2double,Digits);   
   double SL_SELL=NormalizeDouble(Ask+TrailingProfit*pips2double,Digits);
   
        for (int cnt=total-1; cnt>=0; cnt--)
        {
         if  (
                 OrderSelect(cnt, SELECT_BY_POS)                    // select Only my orders with
                 &&  OrderMagicNumber()  == Magic                   // my magic number
                 &&  OrderSymbol()       == Symbol()            // and my pair.
                 )
                {
                 if(OrderType()==OP_BUY)                                                //and is buy order
                        {
                         if(OrderStopLoss()>=OrderOpenPrice())          //meaning already scaled once
                          {
                                if(NormalizeDouble(OrderStopLoss(),Digits)<SL_BUY)      
                 {
                  Print(pair,", ",TimeFrameToString(tf), ", ",OrderTicket()," BUY TrailingProfit Activated.");
                                  if(!OrderModify(OrderTicket(),OrderOpenPrice(),SL_BUY,OrderTakeProfit(),0,Yellow))
                                  Print(pair,", ",TimeFrameToString(tf), ", ",OrderTicket()," BUY TrailingProfit err=", err,", ",SL_BUY);
                             }
                          }
                        }
                
                 if(OrderType()==OP_SELL)
                        {
                         if(OrderStopLoss()<=OrderOpenPrice())          //meaning already scaled once
                          {
                                if(NormalizeDouble(OrderStopLoss(),Digits)>SL_SELL)
                 {
                                  Print(pair,", ",TimeFrameToString(tf),", ",OrderTicket(), " SELL TrailingProfit Activated.");
                  if(!OrderModify(OrderTicket(),OrderOpenPrice(),SL_BUY,OrderTakeProfit(),0,Yellow))
                                  Print(pair,", ",TimeFrameToString(tf), ", ",OrderTicket()," SELL TrailingProfit err=", err,", ",SL_SELL);
                             }
                          }
                        }
                }
        }
return(0);
}
 

oh, I see your point,

code modified and now the err=130


May I know what may cause it to return error=130? many thanks!

 

Ah . . your code makes sense now . . .

Errors: https://docs.mql4.com/trading/errors

 

Did you mean to use SL_BUY for your OrderModify for Buys and Sells ?

I'll repeat the same advice I gave yesterday to someone else . . .

"If you want to find errors you need INFORMATION . . how do you get it ? ADD Print statements . . . print all your variables, when something isn't working you can check your variable values to see if they are right or wrong . . then you have info and you can find where your issue is."

 
RaptorUK:

Did you mean to use SL_BUY for your OrderModify for Buys and Sells ?

I'll repeat the same advice I gave yesterday to someone else . . .

"If you want to find errors you need INFORMATION . . how do you get it ? ADD Print statements . . . print all your variables, when something isn't working you can check your variable values to see if they are right or wrong . . then you have info and you can find where your issue is."


OMG, big mistake, thanks RaptorUK!!!!
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