Need help with Custom Indicator & EA

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Hi, I am new to mql programming. I have an custom indicator which give buy & sell signal by putting arrow in chart window. It doesn't pass any return value for EA.

So i can't use iCustome() function from EA. How can i get the signal from EA?In the code what i have to add after "CrossUp[i] = Low[i] - Range*0.5;" & "CrossDown[i] = High[i] + Range*0.5;"?

Thatnks in advance.

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_color1 Green
#property indicator_color2 Red

double CrossUp[];
double CrossDown[];
extern int FasterEMA = 5;
extern int SlowerEMA = 10;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   SetIndexStyle(0, DRAW_ARROW, EMPTY);
   SetIndexArrow(0, 233);
   SetIndexBuffer(0, CrossUp);
   SetIndexStyle(1, DRAW_ARROW, EMPTY);
   SetIndexArrow(1, 234);
   SetIndexBuffer(1, CrossDown);
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start() {
   int limit, i, counter;
   double fasterEMAnow, slowerEMAnow, fasterEMAprevious, slowerEMAprevious, fasterEMAafter, slowerEMAafter;
   double Range, AvgRange;
   int counted_bars=IndicatorCounted();
//---- check for possible errors
   if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
   if(counted_bars>0) counted_bars--;

   limit=Bars-counted_bars;
   
   for(i = 0; i <= limit; i++) {
   
      counter=i;
      Range=0;
      AvgRange=0;
      for (counter=i ;counter<=i+9;counter++)
      {
         AvgRange=AvgRange+MathAbs(High[counter]-Low[counter]);
      }
      Range=AvgRange/10;
       
      fasterEMAnow = iMA(NULL, 0, FasterEMA, 0, MODE_EMA, PRICE_CLOSE, i);
      fasterEMAprevious = iMA(NULL, 0, FasterEMA, 0, MODE_EMA, PRICE_CLOSE, i+1);
      fasterEMAafter = iMA(NULL, 0, FasterEMA, 0, MODE_EMA, PRICE_CLOSE, i-1);

      slowerEMAnow = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i);
      slowerEMAprevious = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i+1);
      slowerEMAafter = iMA(NULL, 0, SlowerEMA, 0, MODE_EMA, PRICE_CLOSE, i-1);
      
      if ((fasterEMAnow > slowerEMAnow) && (fasterEMAprevious < slowerEMAprevious) && (fasterEMAafter > slowerEMAafter)) {
         CrossUp[i] = Low[i] - Range*0.5;
      }
      else if ((fasterEMAnow < slowerEMAnow) && (fasterEMAprevious > slowerEMAprevious) && (fasterEMAafter < slowerEMAafter)) {
         CrossDown[i] = High[i] + Range*0.5;
      }
   }
   return(0);
}
 
Shihab:

Hi, I am new to mql programming. I have an custom indicator which give buy & sell signal by putting arrow in chart window. It doesn't pass any return value for EA.

So i can't use iCustome() function from EA. How can i get the signal from EA?In the code what i have to add after "CrossUp[i] = Low[i] - Range*0.5;" & "CrossDown[i] = High[i] + Range*0.5;"?

Thatnks in advance.


> It doesn't pass any return value for EA.

Yes it does. those values are 

double CrossUp[];
double CrossDown[];

referenced as

   SetIndexBuffer(0, CrossUp);
   SetIndexBuffer(1, CrossDown);

which you can get at with iCustom.


You may need to read this again

https://docs.mql4.com/indicators/icustom

 
... and you may want to re - read https://www.mql5.com/en/forum/139051
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