Using the iCustom indicator

[Louisemileg]

Hey guys, 

I am trying to implement Heiken Ashi candles in my EA and I can't seem to make the iCustom function work properly... From what I understood, I should use these lines from the indicator code in order to select the mode I am looking forward to use in my EA...

   SetIndexBuffer(0,ExtLowHighBuffer);
   SetIndexBuffer(1,ExtHighLowBuffer);
   SetIndexBuffer(2,ExtOpenBuffer);
   SetIndexBuffer(3,ExtCloseBuffer);

I would like to write a specific function that would detect if the body of the candle is Bullish or Bearish. I tried a couple of different things and I cannot make the EA properly identify what the type/color of current candle (Bullish vs Bearish)... 

Any ideas?

Thank you very much!

[Carl Schreiber]

Search for EAs that are using it - there is practically nothing that does not exist for MT4/5

[William Roeder]

1. Bullish is when the close is above the open.

2. You should encapsulate your iCustom calls to make your code self-documenting.
             Detailed explanation of iCustom - MQL4 and MetaTrader 4 - MQL4 programming forum

   #define  PRICE double            // A PRICE
   #define  INDEX    uint           // Zero based.
   #define  COUNT    uint           //  One based.
   #define  MONEY    double
   #define  SYMBOL   string
   //+------------------------------------------------------------------+
   //| Heiken Ashi iCustom function                                     |
   //+------------------------------------------------------------------+
   enum HAbuffer{ HA_LOW_HIGH, HA_HIGH_LOW, HA_OPEN, HA_CLOSE, HA_BOTTOM, HA_TOP };
   PRICE    Heiken_Ashi(HAbuffer buf, INDEX iBar){
      return Heiken_Ashi(_Symbol, ENUM_TIMEFRAMES(_Period), buf, iBar);
   }
   PRICE    Heiken_Ashi(ENUM_TIMEFRAMES tf, HAbuffer buf, INDEX iBar){
      return Heiken_Ashi(_Symbol, tf, buf, iBar);
   }
   PRICE    Heiken_Ashi(SYMBOL sym, ENUM_TIMEFRAMES tf, HAbuffer buf, INDEX iBar){
      #define  HA    "Heiken Ashi"
      if(buf < HA_BOTTOM)  return iCustom(sym, tf, HA,
                                          // All four parameters are just colors
                                          buf, iBar);
      PRICE    lh = iCustom(sym, tf, HA, HA_LOW_HIGH, iBar);
      PRICE    hl = iCustom(sym, tf, HA, HA_HIGH_LOW, iBar);
      return HA_BOTTOM == buf ? MathMin(lh, hl) : MathMax(lh, hl);
   }