Waddah_Attar_Trend_Alert – indicator for MetaTrader 5

  • Platform: Metatrader5
  • Currency pairs: Any pairs, indices and metals
  • Trading Time: Around the clock
  • Recommended broker: icmarkets, XM
  • Real Author: Eng. Waddah Attar

    Waddah_Attar_Trend indicator features alerts, emails and push notifications.

    The following changes have been made to the indicator code in order to implement the alerts, email messages and push notifications:

    1. Introduced new input parameters
      //---- Inputs for alerts 
      input uint NumberofBar=1;                    //Bar number for the signal
      input bool SoundON=true;                     //Enable alerts
      input uint NumberofAlerts=2;                 //Number of alerts
      input bool EMailON=false;                    //Enable mailing the signal
      input bool PushON=false;                     //Enable sending the signal to mobile devices
      
    2. Added three new functions to the end of the indicator code: BuySignal(), SellSignal() and GetStringTimeframe()
      //+——————————————————————+
      //| Buy signal function                                              |
      //+——————————————————————+
      void BuySignal(string SignalSirname,// text of the indicator name for email and push messages
      double &ColorArray[],// color index buffer
      int ColorIndex,// color index in the color index buffer for generating a signal
      const int Rates_total, // current number of bars
      const int Prev_calculated, // number of bars on the previous tick
      const double &Close[], // close price
      const int &Spread[]) // spread
      {
      //—
      static uint counter=0;
      if(Rates_total!=Prev_calculated) counter=0;

      bool BuySignal=false;
      bool SeriesTest=ArrayGetAsSeries(ColorArray);
      int index,index1;
      if(SeriesTest)
      {
      index=int(NumberofBar);
      index1=index+1;
      }
      else
      {
      index=Rates_total-int(NumberofBar)-1;
      index1=index-1;
      }
      if(ColorArray[index1]!=ColorIndex && ColorArray[index]==ColorIndex) BuySignal=true;
      if(BuySignal && counter<=NumberofAlerts)
      {
      counter++;
      MqlDateTime tm;
      TimeToStruct(TimeCurrent(),tm);
      string text=TimeToString(TimeCurrent(),TIME_DATE)+” “+string(tm.hour)+“:”+string(tm.min);
      SeriesTest=ArrayGetAsSeries(Close);
      if(SeriesTest) index=int(NumberofBar);
      else index=Rates_total-int(NumberofBar)-1;
      double Ask=Close[index];
      double Bid=Close[index];
      SeriesTest=ArrayGetAsSeries(Spread);
      if(SeriesTest) index=int(NumberofBar);
      else index=Rates_total-int(NumberofBar)-1;
      Bid+=_Point*Spread[index];
      string sAsk=DoubleToString(Ask,_Digits);
      string sBid=DoubleToString(Bid,_Digits);
      string sPeriod=GetStringTimeframe(ChartPeriod());
      if(SoundON) Alert(“BUY signal \n Ask=”,Ask,“\n Bid=”,Bid,“\n currtime=”,text,“\n Symbol=”,Symbol(),” Period=”,sPeriod);
      if(EMailON) SendMail(SignalSirname+“: BUY signal alert”,“BUY signal at Ask=”+sAsk+“, Bid=”+sBid+“, Date=”+text+” Symbol=”+Symbol()+” Period=”+sPeriod);
      if(PushON) SendNotification(SignalSirname+“: BUY signal at Ask=”+sAsk+“, Bid=”+sBid+“, Date=”+text+” Symbol=”+Symbol()+” Period=”+sPeriod);
      }

      //—
      }
      //+——————————————————————+
      //| Sell signal function                                             |
      //+——————————————————————+
      void SellSignal(string SignalSirname, // text of the indicator name for email and push messages
      double &ColorArray[], // color index buffer
      int ColorIndex, // color index in the color index buffer for generating a signal
      const int Rates_total, // current number of bars
      const int Prev_calculated, // number of bars on the previous tick
      const double &Close[], // close price
      const int &Spread[]) // spread
      {
      //—
      static uint counter=0;
      if(Rates_total!=Prev_calculated) counter=0;

      bool SellSignal=false;
      bool SeriesTest=ArrayGetAsSeries(ColorArray);
      int index,index1;
      if(SeriesTest)
      {
      index=int(NumberofBar);
      index1=index+1;
      }
      else
      {
      index=Rates_total-int(NumberofBar)-1;
      index1=index-1;
      }
      if(ColorArray[index1]!=ColorIndex && ColorArray[index]==ColorIndex) SellSignal=true;
      if(SellSignal && counter<=NumberofAlerts)
      {
      counter++;
      MqlDateTime tm;
      TimeToStruct(TimeCurrent(),tm);
      string text=TimeToString(TimeCurrent(),TIME_DATE)+” “+string(tm.hour)+“:”+string(tm.min);
      SeriesTest=ArrayGetAsSeries(Close);
      if(SeriesTest) index=int(NumberofBar);
      else index=Rates_total-int(NumberofBar)-1;
      double Ask=Close[index];
      double Bid=Close[index];
      SeriesTest=ArrayGetAsSeries(Spread);
      if(SeriesTest) index=int(NumberofBar);
      else index=Rates_total-int(NumberofBar)-1;
      Bid+=_Point*Spread[index];
      string sAsk=DoubleToString(Ask,_Digits);
      string sBid=DoubleToString(Bid,_Digits);
      string sPeriod=GetStringTimeframe(ChartPeriod());
      if(SoundON) Alert(“SELL signal \n Ask=”,Ask,“\n Bid=”,Bid,“\n currtime=”,text,“\n Symbol=”,Symbol(),” Period=”,sPeriod);
      if(EMailON) SendMail(SignalSirname+“: SELL signal alert”,“SELL signal at Ask=”+sAsk+“, Bid=”+sBid+“, Date=”+text+” Symbol=”+Symbol()+” Period=”+sPeriod);
      if(PushON) SendNotification(SignalSirname+“: SELL signal at Ask=”+sAsk+“, Bid=”+sBid+“, Date=”+text+” Symbol=”+Symbol()+” Period=”+sPeriod);
      }
      //—
      }
      //+——————————————————————+
      //| Getting a timeframe as a string                                  |
      //+——————————————————————+
      string GetStringTimeframe(ENUM_TIMEFRAMES timeframe)
      {
      //—-
      return(StringSubstr(EnumToString(timeframe),7,-1));
      //—-
      }

    3. Added a couple of calls to BuySignal() and SellSignal() functions after the indicator calculation cycles in the OnCalculate() block
      //—
      BuySignal(“Waddah_Attar_Trend_Alert”,ColorIndBuffer,0,rates_total,prev_calculated,close,spread);
      SellSignal(“Waddah_Attar_Trend_Alert”,ColorIndBuffer,1,rates_total,prev_calculated,close,spread);
      //—

    where ColorIndBuffer is a name of a color index buffer for storing a line color as an index, while 0 and 1 are the numbers of colors in the color index buffer.

    It is assumed that the only one call to the BuySignal() and SellSignal() functions will be used in the OnCalculate() block of the indicator code.

    The indicator uses SmoothAlgorithms.mqh library classes (copy it to <terminal_data_folder>\MQL5\Include). The use of the classes was thoroughly described in the article “Averaging Price Series for Intermediate Calculations Without Using Additional Buffers”.

    Fig.1. Waddah_Attar_Trend_Alert indicator on the chart

    Fig.1. Waddah_Attar_Trend_Alert indicator on the chart

    Fig.2. Waddah_Attar_Trend_Alert indicator. Generating alerts

    Fig.2. Waddah_Attar_Trend_Alert indicator. Generating alerts

  • How to install MT5 indicator?
  • 1. On the desktop, double-click to open the MT45 trading platform software you installed.
  • 2. Click on “File” in the upper left corner – “Open Data Folder”, double-click the MQL5 folder, and double-click the Indicators folder
  • 3. Copy the metrics you need to install to the Indicators folder
  • 4. Open MT5, find “Navigator” in the display menu, then click “Technical Indicators” of “Navigator” and right click to refresh, you will see the indicator just copied.
  • 5. In the “Technical Indicators” of “Navigator”, find the indicator file just installed, double click or click manually to the chart window