Change Color of Bar base on indicator

if you want to change a single bar you have to use objects for that

to change the entire chart use ChartSetInteger ENUM_CHART_PROPERTY_INTEGER:

Thank you for your answer. I wanna change entire chart, but i dont understand how to use this ChartSetInterger with my conditions. Can you write a simple code with my example?

RSI >50, bar is red. RSI < 50 bar is blue

complex ? why ?

it's so simple MQ already done the dirty work for you just pick the right function put it in your EA/indicator/Script

the only thing they left for you, is to call the right function when you want or need it

for instance if for some reason i want to change the background color to blue i copy the fonction to my EA/Ind......

//+------------------------------------------------------------------+
//| The function sets chart background color.                        |
//+------------------------------------------------------------------+
bool ChartBackColorSet(const color clr,const long chart_ID=0)
  {
//--- reset the error value
   ResetLastError();
//--- set the chart background color
   if(!ChartSetInteger(chart_ID,CHART_COLOR_BACKGROUND,clr))
     {
      //--- display the error message in Experts journal
      Print(__FUNCTION__+", Error Code = ",GetLastError());
      return(false);
     }
//--- successful execution
   return(true);
  }

and i call it whenever i want

if (Bla Bla Bla)
   ChartBackColorSet(clrBlue);