MACD_ColorHist_Alert_001

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MACD_ColorHist_Alert_001

This script is designed for the MetaTrader 4 platform to enhance the visual representation and notification system of the Moving Average Convergence Divergence (MACD) indicator. It transforms standard data into a color-coded histogram and provides real-time alerts based on specific price action movements.

Visual Enhancements

The primary role of this script is to provide a multi-layered, color-coded histogram that makes it easier to identify market momentum at a glance:

  • Dynamic Coloring: Instead of a single uniform color, the histogram changes shades based on whether the MACD value is positive or negative and whether the current momentum is increasing or decreasing.
  • Momentum Tracking: By comparing the current bar's value against the previous one, the script visually distinguishes between "Rising" and "Declining" trends in both bullish (above zero) and bearish (below zero) zones.
  • Customizable View: Users can toggle the visibility of the main MACD line, the Signal line, and the Histogram itself to suit their preferred trading style.

Core Logic and Automations

The script monitors the relationship between the MACD line and the Signal line in real-time, triggering various notifications based on three distinct types of events:

1. Zero Line Crosses The script detects when the MACD line moves from a negative territory to a positive one (Crossing Up) or vice versa (Crossing Down). These are often viewed as primary trend shifts.

2. Signal Line Crosses It monitors the intersection between the MACD line and the Signal line. When the MACD crosses above the signal, it identifies upward momentum; when it crosses below, it identifies downward momentum.

3. Directional Changes The script tracks the "slope" of the histogram. It recognizes when the movement begins to shift—for example, identifying the exact moment the MACD starts to decline while still in positive territory. It includes a specific toggle to confirm these changes over two bars to filter out minor price fluctuations (noise).

Notification System

Whenever the logic detects one of the movements mentioned above, the script can proactively notify the trader through multiple channels:

  • Sound Alerts: Audible beeps within the trading platform.
  • Email Notifications: Automated emails containing the specific details of the cross (Symbol, Timeframe, and current Price).
  • On-Screen Alerts: Pop-up messages clearly stating the type of movement detected (e.g., "MACD Rising," "Crossing Zero Up," etc.).
Price Data Components
Series array that contains open time of each bar
Indicators Used
Moving average indicatorMoving average indicator
Miscellaneous
Implements a curve of type %1It sends emails
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0 Downloads
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MACD_ColorHist_Alert_001 
//+------------------------------------------------------------------+
//|                                         MACD_ColorHist_Alert.mq4 |
//|                                    Copyright © 2006, Robert Hill |
//|                                                                  |
//+------------------------------------------------------------------+
#property  copyright "Copyright © 2006, Robert Hill"
//---- indicator settings
#property  indicator_separate_window
#property  indicator_buffers 6
#property  indicator_color1  RoyalBlue
#property  indicator_color2  RoyalBlue
#property  indicator_color3  Red
#property  indicator_color4  Red
#property  indicator_color5  Aqua
#property  indicator_color6  White

#property indicator_width1 2
#property indicator_width2 2
#property indicator_width3 2
#property indicator_width4 2
#property indicator_width5 1
#property indicator_width6 1


//---- indicator parameters



extern int FastEMA =5;  //2
extern int SlowEMA =35;  //8
extern int SignalSMA=5;  //6

//extern int  OsmaMultiplier =1;
extern bool ShowHistogram  = true;
extern bool ShowMACDLine   = false;//true
extern bool ShowSignalLine = true;//false

extern bool SoundAlert =true;
extern bool EmailAlert  =false;
extern bool MACDzeroLineCrossAlert   = true;
extern bool MACDSignalLineCrossAlert = False;
extern bool MACDDirectionChangeAlert = true;
extern bool TwoBarsDirChageConfirm   = false;
extern bool ShowAlertStatus = true;
//---- indicator buffers
double     ind_buffer1[];
double     ind_buffer2[];


double HistogramBufferUp[];
double HistogramBufferDown[];

double HistogramBufferUp1[];
double HistogramBufferDown1[];

int flagval11 = 0;
int flagval12 = 0;
int flagval21 = 0;
int flagval22 = 0;
int flagval31 = 0;
int flagval32 = 0;
int flagval41 = 0;
int flagval42 = 0;

//---- variables

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- drawing settings
//   IndicatorBuffers(3);
   IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS)+1);
   SetIndexBuffer(0,HistogramBufferUp);//lime
   SetIndexBuffer(1,HistogramBufferDown);//red
   SetIndexBuffer(2,HistogramBufferUp1);//green
   SetIndexBuffer(3,HistogramBufferDown1);//maroon
   SetIndexBuffer(4,ind_buffer1);//aqua
   SetIndexBuffer(5,ind_buffer2);//yellow

if(ShowMACDLine)
    {
   SetIndexStyle(4,DRAW_LINE);
   SetIndexDrawBegin(4,SlowEMA);
    }
 else
    {
    SetIndexStyle(4,DRAW_NONE);
    }

if(ShowSignalLine)
    {
   SetIndexStyle(5,DRAW_LINE);
   SetIndexDrawBegin(5,SignalSMA);
    }
 else
    {
    SetIndexStyle(5,DRAW_NONE);
    }
 
 
 if(ShowHistogram)
   {
   SetIndexStyle(0,DRAW_HISTOGRAM);
   SetIndexStyle(1,DRAW_HISTOGRAM);
   SetIndexStyle(2,DRAW_HISTOGRAM);
   SetIndexStyle(3,DRAW_HISTOGRAM);
   }
 else
    {
   SetIndexStyle(0,DRAW_NONE);
   SetIndexStyle(1,DRAW_NONE);
   SetIndexStyle(2,DRAW_NONE);
   SetIndexStyle(3,DRAW_NONE);
   }


//   SetIndexDrawBegin(2,SlowEMA + SignalSMA);
//---- name for DataWindow and indicator subwindow label

   if (ShowAlertStatus)
   {
   string _SoundAlert="",_EmailAlert="";
   if(SoundAlert) _SoundAlert="ON";
   if(!SoundAlert)_SoundAlert="OFF";
   if(EmailAlert) _EmailAlert="ON";
   if(!EmailAlert)_EmailAlert="OFF";
   }
   IndicatorShortName("MACD Hist_Alert "+_SoundAlert+" ("+FastEMA+","+SlowEMA+","+SignalSMA+") ");
   
   SetIndexLabel(4,"MACD");
   SetIndexLabel(5,"Signal");
   SetIndexLabel(0,"");
   SetIndexLabel(1,"");
   SetIndexLabel(2,"");
   SetIndexLabel(3,"");
   
//---- initialization done
   return(0);
  }
//+------------------------------------------------------------------+
//| Moving Averages Convergence/Divergence                           |
//+------------------------------------------------------------------+
int start()
{
   int limit;
   double temp,temp1;
   
   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;
//---- macd counted in the 1-st buffer
   for(int i=0; i<limit; i++)
      ind_buffer1[i]=iMA(NULL,0,FastEMA,0,MODE_EMA,PRICE_CLOSE,i)-iMA(NULL,0,SlowEMA,0,MODE_EMA,PRICE_CLOSE,i);
//---- signal line counted in the 2-nd buffer
   for(i=0; i<limit; i++)
      ind_buffer2[i]=iMAOnArray(ind_buffer1,Bars,SignalSMA,0,MODE_SMA,i);

   for(i=0; i<limit; i++)
   {
      HistogramBufferUp[i]    = 0.0;//lime
      HistogramBufferDown[i]  = 0.0;//red
      HistogramBufferUp1[i]   = 0.0;//green
      HistogramBufferDown1[i] = 0.0;//maroon
       
//       if (OsmaMultiplier<=0)OsmaMultiplier=1;
//      temp =  ind_buffer1[i]*OsmaMultiplier;
//      temp1 = ind_buffer1[i+1]*OsmaMultiplier;
      
      temp =  ind_buffer1[i];
      temp1 = ind_buffer1[i+1];


    
     if (temp >0) 
       {
          if (temp>temp1)     //>0up
            {       
            HistogramBufferUp[i] = temp;    
            }
            else              //>0dn
            { 
            HistogramBufferUp [i] = 0.0;
            HistogramBufferUp1[i] = temp;   
            }
       }    
      else
       {  
         if (temp>temp1)     //<=0 up
          {       
        HistogramBufferDown[i] = temp; 
          }  
        else                  //<=0 dn
           {
        HistogramBufferDown[i] = 0.0;
        HistogramBufferDown1[i] = temp;  
           }
//---
       }
//-
     if (i == 1)
    {

         if ((ind_buffer1[i] > 0)&&(ind_buffer1[i+1] < 0))
         {
// macd Cross 0 up
         if (flagval11==0)
           {
           flagval11=1;
           flagval12=0;
           flagval32=1;
           if ((SoundAlert)&&(MACDzeroLineCrossAlert)) Alert ("MACD crossed Zero Up! ",Symbol()," TF M",Period()," @ ",Bid); 
                if ((EmailAlert)&&(MACDzeroLineCrossAlert)) SendMail("MACD CrossedZero Up", "MACD CrossedZero Up, Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
           }
          }
//
       else if ((ind_buffer1[i]<0 )&&(ind_buffer1[i+1] >0))
        {
//macd Cross 0 down
         if (flagval12==0)
         {
          flagval11=0;
          flagval12=1;
          if ((SoundAlert)&&(MACDzeroLineCrossAlert)) Alert ("MACD crossed Zero Down! " ,Symbol()," TF M",Period()," @ ",Bid); 
               if ((EmailAlert)&&(MACDzeroLineCrossAlert)) SendMail("MACD Crossed Zero Down","MACD CrossedZero Down, Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
         }
        }

//
       else if ((ind_buffer1[i] < ind_buffer2[i])&&(ind_buffer1[i+1] > ind_buffer2[i+1]))
         {
//Macd xSigDn
         if (flagval21==0)
           {
           flagval21=1;
           flagval22=0;
           flagval41=1;
           if ((SoundAlert)&&(MACDSignalLineCrossAlert)) Alert ("MACD crossed SignalLane & going Down! ",Symbol()," TF M",Period()," @ ",Bid); 
                if ((EmailAlert)&&(MACDSignalLineCrossAlert)) SendMail("MACD xSignalLane & going Down", "MACD xSignalLane & going Down, Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
           }
         }

       else if ((ind_buffer1[i] > ind_buffer2[i])&&(ind_buffer1[i+1] < ind_buffer2[i+1]))
         {
//Macd xSigUp
         if (flagval22==0)
           {
         flagval21=0;
           flagval22=1;
           if ((SoundAlert)&&(MACDSignalLineCrossAlert)) Alert ("MACD crossed SignalLane & going Up! ",Symbol()," TF M",Period()," @ ",Bid); 
                if ((EmailAlert)&&(MACDSignalLineCrossAlert)) SendMail("MACD xSignalLane & going Up", "MACD xSignalLane & going Up, Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
           }
         }



// 
       else if  (((ind_buffer1[i]>0)&&(ind_buffer1[i] < ind_buffer1[i+1])&&(ind_buffer1[i+1] < ind_buffer1[i+2])&&(TwoBarsDirChageConfirm))||
                 ((ind_buffer1[i]>0)&&(ind_buffer1[i] < ind_buffer1[i+1])&&(!TwoBarsDirChageConfirm)))
         {
// >0dn
         if (flagval31==0)
           {
           flagval31=1;
           flagval32=0;
           if ((SoundAlert)&&(MACDDirectionChangeAlert)) Alert ("MACD>0 Declining... ",Symbol()," TF M",Period()," @ ",Bid); 
                if ((EmailAlert)&&(MACDDirectionChangeAlert)) SendMail("MACD Declining...", "MACD fDeclining.., Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
           }
         }

       else if (((ind_buffer1[i]>0)&&(ind_buffer1[i] > ind_buffer1[i+1])&&(ind_buffer1[i+1] > ind_buffer1[i+2])&&(TwoBarsDirChageConfirm))||
                ((ind_buffer1[i]>0)&&(ind_buffer1[i] > ind_buffer1[i+1])&&(!TwoBarsDirChageConfirm)))
         {
// >0up
         if (flagval32==0)
           {
           flagval31=0;
           flagval32=1;
           if ((SoundAlert)&&(MACDDirectionChangeAlert)) Alert ("MACD>0 Rising... ",Symbol()," TF M",Period()," @ ",Bid); 
                if ((EmailAlert)&&(MACDDirectionChangeAlert)) SendMail("MACD Rising...", "MACD Rising.., Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
           }
         }
       else if (((ind_buffer1[i]<=0)&&(ind_buffer1[i] < ind_buffer1[i+1])&&(ind_buffer1[i+1] < ind_buffer1[i+2])&&(TwoBarsDirChageConfirm))||
                ((ind_buffer1[i]<=0)&&(ind_buffer1[i] < ind_buffer1[i+1])&&(!TwoBarsDirChageConfirm)) )
         {
// <0dn
         if (flagval41==0)
           {
           flagval41=1;
           flagval42=0;
           if ((SoundAlert)&&(MACDDirectionChangeAlert)) Alert ("MACD<0 Declining... ",Symbol()," TF M",Period()," @ ",Bid); 
                if ((EmailAlert)&&(MACDDirectionChangeAlert)) SendMail("MACD Declining...", "MACD fDeclining.., Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
           }
         }
//
       else if  (((ind_buffer1[i]<=0)&&(ind_buffer1[i] > ind_buffer1[i+1])&&(ind_buffer1[i+1] > ind_buffer1[i+2])&&(TwoBarsDirChageConfirm))||
                 ((ind_buffer1[i]<=0)&&(ind_buffer1[i] > ind_buffer1[i+1])&&(!TwoBarsDirChageConfirm)))

         {
// <0up
         if (flagval42==0)
           {
           flagval41=0;
           flagval42=1;
           if ((SoundAlert)&&(MACDDirectionChangeAlert)) Alert ("MACD<0 Rising... ",Symbol()," TF M",Period()," @ ",Bid); 
                if ((EmailAlert)&&(MACDDirectionChangeAlert)) SendMail("MACD Rising...", "MACD Rising.., Date="+TimeToStr(CurTime(),TIME_DATE)+" "+TimeHour(CurTime())+":"+TimeMinute(CurTime())+" Symbol="+Symbol()+" Period="+Period());
           }
         }
//

      }
//-

   }
       
//---- done
   return(0);
 }

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