//+------------------------------------------------------------------+
//|                                                    BarsColor.mq4 |
//|                                              Copyright 2017, AM2 |
//|                                      http://www.forexsystems.biz |
//+------------------------------------------------------------------+
#property copyright "Copyright 2017, AM2"
#property link      "http://www.forexsystems.biz"
#property version   "1.00"
#property strict

#property indicator_chart_window

input int n=10;
input int d=200;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping

//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void PutRect(string name,datetime t1,double p1,datetime t2,double p2,color clr)
  {
   ObjectDelete(0,name);
//--- создадим прямоугольник по заданным координатам
   ObjectCreate(0,name,OBJ_RECTANGLE,0,t1,p1,t2,p2);
//--- установим цвет прямоугольника
   ObjectSetInteger(0,name,OBJPROP_COLOR,clr);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
//---
   for(int i=0;i<1000;i++)
     {
      if(MathAbs(close[i]-close[i+n])>d*Point) PutRect((string)i,time[i],close[i],time[i+n],close[i+n],Red);
     }
//--- return value of prev_calculated for next call
   return(rates_total);
  }
//+------------------------------------------------------------------+