Mastering MACD Trading on EUR/USD: Expert Strategy for MetaTrader 5

void OpenBuyOrSell()
  {
   double mac1, mac2, mac3, mac4, mac5, mac6, mac7, mac8;
   mac1 = iMACDGet(MAIN_LINE, 0);
   mac2 = iMACDGet(MAIN_LINE, 1);
   mac3 = iMACDGet(MAIN_LINE, 2);
   mac4 = iMACDGet(MAIN_LINE, 3);
   mac5 = iMACDGet(SIGNAL_LINE, 0);
   mac6 = iMACDGet(SIGNAL_LINE, 1);
   mac7 = iMACDGet(SIGNAL_LINE, 2);
   mac8 = iMACDGet(SIGNAL_LINE, 3);

//--- Check for long position (BUY) possibility
   if(mac8 > mac7 && mac7 > mac6 && mac6 < mac5 && mac4 > mac3 && mac3 < mac2 && mac2 < mac1 && mac2 < -0.00020 && mac4 < 0 && mac1 > 0.00020)
     {
      if(!RefreshRates())
         return;
      double volume = LotsOptimized();
      if(volume == 0)
         return;
      m_trade.Buy(volume, Symbol(), m_symbol.Bid(), 0, 0, "Expert MACD");
      return;
     }
//--- Check for short position (SELL) possibility
   if(mac8 < mac7 && mac7 < mac6 && mac6 > mac5 && mac4 < mac3 && mac3 > mac2 && mac2 > mac1 && mac2 > 0.00020 && mac4 > 0 && mac1 < -0.00035)
     {
      if(!RefreshRates())
         return;
      double volume = LotsOptimized();
      if(volume == 0)
         return;
      m_trade.Sell(volume, Symbol(), m_symbol.Ask(), 0, 0, "Expert MACD");
      return;
     }
  }