Hey coders! Is it possible to change background color of the chart when signal comes.? for MT5

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when signal arrow appear on the chart i want to change chart background color, suggest me how to do it.....


//+------------------------------------------------------------------+
//|                                       Indicator: stock-arrow.mq5 |
//+------------------------------------------------------------------+
#property version   "1.00"
#property description ""

//--- indicator settings
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_plots 2

#property indicator_type1 DRAW_ARROW
#property indicator_width1 5
#property indicator_color1 Green
#property indicator_label1 "Buy"

#property indicator_type2 DRAW_ARROW
#property indicator_width2 5
#property indicator_color2 Red
#property indicator_label2 "Sell"

//--- indicator buffers
double Buffer1[];
double Buffer2[];

datetime time_alert; //used when sending alert
bool Send_Email = false;
bool Audible_Alerts = false;
bool Push_Notifications = false;
double myPoint; //initialized in OnInit
int Stochastic_handle;
double Stochastic_Main[];
double Stochastic_Signal[];
double Low[];
double High[];

void myAlert(string type, string message)
  {
   if(type == "print")
      Print(message);
   else if(type == "error")
     {
      Print(type+" | stock-arrow @ "+Symbol()+","+IntegerToString(Period())+" | "+message);
     }
   else if(type == "order")
     {
     }
   else if(type == "modify")
     {
     }
   else if(type == "indicator")
     {
      Print(type+" | stock-arrow @ "+Symbol()+","+IntegerToString(Period())+" | "+message);
      if(Audible_Alerts) Alert(type+" | stock-arrow @ "+Symbol()+","+IntegerToString(Period())+" | "+message);
      if(Send_Email) SendMail("stock-arrow", type+" | stock-arrow @ "+Symbol()+","+IntegerToString(Period())+" | "+message);
      if(Push_Notifications) SendNotification(type+" | stock-arrow @ "+Symbol()+","+IntegerToString(Period())+" | "+message);
     }
  }

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {   
   SetIndexBuffer(0, Buffer1);
   PlotIndexSetDouble(0, PLOT_EMPTY_VALUE, EMPTY_VALUE);
   PlotIndexSetInteger(0, PLOT_ARROW, 233); PlotIndexSetInteger(0,PLOT_ARROW_SHIFT, 20); 
   SetIndexBuffer(1, Buffer2);
   PlotIndexSetDouble(1, PLOT_EMPTY_VALUE, EMPTY_VALUE);
   PlotIndexSetInteger(1, PLOT_ARROW, 234); PlotIndexSetInteger(1,PLOT_ARROW_SHIFT, -20); 
   //initialize myPoint
   myPoint = Point();
   if(Digits() == 5 || Digits() == 3)
     {
      myPoint *= 10;
     }
   Stochastic_handle = iStochastic(NULL, PERIOD_CURRENT, 5, 3, 3, MODE_SMA, STO_LOWHIGH);
   if(Stochastic_handle < 0)
     {
      Print("The creation of iStochastic has failed: Stochastic_handle=", INVALID_HANDLE);
      Print("Runtime error = ", GetLastError());
      return(INIT_FAILED);
     }
   
   return(INIT_SUCCEEDED);
  }

//+------------------------------------------------------------------+
//| 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[])
  {
   int limit = rates_total - prev_calculated;
   //--- counting from 0 to rates_total
   ArraySetAsSeries(Buffer1, true);
   ArraySetAsSeries(Buffer2, true);
   //--- initial zero
   if(prev_calculated < 1)
     {
      ArrayInitialize(Buffer1, EMPTY_VALUE);
      ArrayInitialize(Buffer2, EMPTY_VALUE);
     }
   else
      limit++;
   datetime Time[];
   
   if(BarsCalculated(Stochastic_handle) <= 0) 
      return(0);
   if(CopyBuffer(Stochastic_handle, MAIN_LINE, 0, rates_total, Stochastic_Main) <= 0) return(rates_total);
   ArraySetAsSeries(Stochastic_Main, true);
   if(BarsCalculated(Stochastic_handle) <= 0) 
      return(0);
   if(CopyBuffer(Stochastic_handle, SIGNAL_LINE, 0, rates_total, Stochastic_Signal) <= 0) return(rates_total);
   ArraySetAsSeries(Stochastic_Signal, true);
   if(CopyLow(Symbol(), PERIOD_CURRENT, 0, rates_total, Low) <= 0) return(rates_total);
   ArraySetAsSeries(Low, true);
   if(CopyHigh(Symbol(), PERIOD_CURRENT, 0, rates_total, High) <= 0) return(rates_total);
   ArraySetAsSeries(High, true);
   if(CopyTime(Symbol(), Period(), 0, rates_total, Time) <= 0) return(rates_total);
   ArraySetAsSeries(Time, true);
   //--- main loop
   for(int i = limit-1; i >= 0; i--)
     {
      if (i >= MathMin(5000-1, rates_total-1-50)) continue; //omit some old rates to prevent "Array out of range" or slow calculation   
      
      //Indicator Buffer 1
      if(Stochastic_Main[i] > Stochastic_Signal[i]
      && Stochastic_Main[i+1] < Stochastic_Signal[i+1] //Stochastic Oscillator crosses above Stochastic Oscillator
      )
        {
         Buffer1[i] = Low[i]; //Set indicator value at Candlestick Low
         if(i == 0 && Time[0] != time_alert) { myAlert("indicator", "Buy"); time_alert = Time[0]; } //Instant alert, only once per bar
        }
      else
        {
         Buffer1[i] = EMPTY_VALUE;
        }
      //Indicator Buffer 2
      if(Stochastic_Main[i] < Stochastic_Signal[i]
      && Stochastic_Main[i+1] > Stochastic_Signal[i+1] //Stochastic Oscillator crosses below Stochastic Oscillator
      )
        {
         Buffer2[i] = High[i]; //Set indicator value at Candlestick High
         if(i == 0 && Time[0] != time_alert) { myAlert("indicator", "Sell"); time_alert = Time[0]; } //Instant alert, only once per bar
        }
      else
        {
         Buffer2[i] = EMPTY_VALUE;
        }
     }
   return(rates_total);
  }
//+------------------------------------------------------------------+
 
https://www.mql5.com/en/forum/36467
Background Chart Colour
Background Chart Colour
  • 2014.09.26
  • www.mql5.com
Hi I have the attached indicator, but have been unable to get hold of the clever programmer...
 
Yashar Seyyedin #:
https://www.mql5.com/en/forum/36467

I doubts,he asking chart background color changing according to arrows (up/down) an selectable color choice when arrow up and different coloring choice when arrow to down

 
mntiwana #:

I doubts,he asking chart background color changing according to arrows (up/down) an selectable color choice when arrow up and different coloring choice when arrow to down

Exactly, i think you understand, what i want, please suggest me, how to do that.
 

I don't see why not

Global variable:

input color colorChangeOnSignal = clrBlack;


In OnCalculate:

if(signal){

  ChartSetInteger(0, CHART_COLOR_BACKGROUND, colorChangeOnSignal);
}
 
phade #: if(signal){   ChartSetInteger(0, CHART_COLOR_BACKGROUND, colorChangeOnSignal); }

please add it on attached code.

 
maxtitu835 #: please add it on attached code, iam newbie on coding.
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maxtitu835 #:

please add it on attached code.

But you didn't say what the signal should be.


If the indicator should change background when the Alert occurs...for example...then it would be as such:


// global variables at the top of the script
input bool bgChangerActive = true;
input color colorChangeOnSignal = clrRed;
  for(int i = limit-1; i >= 0; i--)
     {
      if (i >= MathMin(5000-1, rates_total-1-50)) continue; //omit some old rates to prevent "Array out of range" or slow calculation   
      
      //Indicator Buffer 1
      if(Stochastic_Main[i] > Stochastic_Signal[i] && Stochastic_Main[i+1] < Stochastic_Signal[i+1]) //Stochastic Oscillator crosses above Stochastic Oscillator
        {
         if(bgChangerActive){ 
            ChartSetInteger(0, CHART_COLOR_BACKGROUND, colorChangeOnSignal);
         }
         Buffer1[i] = Low[i]; //Set indicator value at Candlestick Low
         if(i == 0 && Time[0] != time_alert) { myAlert("indicator", "Buy"); time_alert = Time[0]; } //Instant alert, only once per bar
        }
      else
        {
         Buffer1[i] = EMPTY_VALUE;
        }
      //Indicator Buffer 2
      if(Stochastic_Main[i] < Stochastic_Signal[i] && Stochastic_Main[i+1] > Stochastic_Signal[i+1]) //Stochastic Oscillator crosses below Stochastic Oscillator      
        {
         Buffer2[i] = High[i]; //Set indicator value at Candlestick High
         if(i == 0 && Time[0] != time_alert) { myAlert("indicator", "Sell"); time_alert = Time[0]; } //Instant alert, only once per bar
        }
      else
        {
         Buffer2[i] = EMPTY_VALUE;
        }
     }
 
phade #:

But you didn't say what the signal should be.


If the indicator should change background when the Alert occurs...for example...then it would be as such:


thankyou but, doesn't work,  background  doesn't change when Alert occurs

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