How to draw secondary indicators on chart?

[Eric Duran]

Hi I'm working on a custom MACD-based indicator which works in a separate window; however, I have two MAs declared in the code (using iMA) which I'd like to show on the chart the indicator's attached to. How do I do that?

[Rashid Umarov]

You can use function ChartIndicatorAdd():

ChartIndicatorAdd

Adds an indicator with the specified handle into a specified chart window.

bool  ChartIndicatorAdd(    long  chart_id,                 // chart ID    int   sub_window                // number of the sub-window    int   indicator_handle          // handle of the indicator    );

Where sub_window is from ChartIndicatorName()

[Eric Duran]

Rosh:

You can use function ChartIndicatorAdd():

Where sub_window is from ChartIndicatorName()

Thanks! How do I change the indicator's line type and color once I've created it?

[Rashid Umarov]

cuallito:
Thanks! How do I change the indicator's line type and color once I've created it?

See function IndicatorSetInteger() and Connection between Indicator Properties and Functions

[Jinsong Zhang]

How to get Properties and parameters of an indicator on chart?

For example: an indicator Boll Band on chart, how to know the details of it such as: shift, deviations, apply price..., I say in MQL5

[Rashid Umarov]

At the moment these features are not available from MQL5.

[ismirnix]

hi, i'll go crazy... my code

 ResetLastError();
 h_hashi1 = iCustom(Symbol(), PERIOD_M1, "heiken_ashi_tf1");
 Print("h_hashi1 = ",h_hashi1,"  error = ",GetLastError());
 
 //ChartIndicatorDelete(0,2,"heiken_ashi_tf1"); needed???
 ChartIndicatorAdd(0,2,h_hashi1); // Heiken Ashi soll in Subwindow 2
 
 ResetLastError();
 h_hashi2 = iCustom(Symbol(), PERIOD_M5, "heiken_ashi_tf2");
 Print("h_hashi2 = ",h_hashi2,"  error = ",GetLastError());
 
 //ChartIndicatorDelete(0,3,"heiken_ashi_tf2");
 ChartIndicatorAdd(0,3,h_hashi2); // Heiken Ashi soll in Subwindow 3

first try was with one file in indicators "heiken_ashi_tf" but it only loads one of the heiken ashi into my ea ;(

i also tought it is ab problem with instances and renamed the file to heiken_ashi_tf1 & heiken_ashi_tf2 for using with different handles like above...

in heiken_ashi_tf1 & heiken_ashi_tf2 is

#property indicator_chart_window
//#property indicator_separate_window
#property indicator_buffers 6
#property indicator_plots   1

#property indicator_type1   DRAW_COLOR_CANDLES
#property indicator_color1  DodgerBlue, Red
#property indicator_label1  "Open;High;Low;Close"

//--- indicator buffers
int    ARR_VAL;
int    ARR_COUNTER;
double ExtOBuffer[];
double ExtHBuffer[];
double ExtLBuffer[];
double ExtCBuffer[];
double ExtDBuffer[];
double ExtColorBuffer[];

////////////////////////////////////////////////////////////////////////////////////////////
// INIT
void OnInit(){

 ////////////////////////////
 ARR_VAL     = 0;
 ARR_COUNTER = 0;
 
 SetIndexBuffer(0,ExtOBuffer,INDICATOR_DATA);
 SetIndexBuffer(1,ExtHBuffer,INDICATOR_DATA);
 SetIndexBuffer(2,ExtLBuffer,INDICATOR_DATA);
 SetIndexBuffer(3,ExtCBuffer,INDICATOR_DATA);
 SetIndexBuffer(4,ExtColorBuffer,INDICATOR_COLOR_INDEX);
 SetIndexBuffer(5,ExtDBuffer,INDICATOR_CALCULATIONS);
 
 IndicatorSetInteger(INDICATOR_DIGITS,_Digits);
 IndicatorSetString(INDICATOR_SHORTNAME,"heiken_ashi_tf1"); // in heiken_ashi_tf2 is shortname heiken_ashi_tf2
 PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0.0);
 
 Print("heiken_ashi_tf1 loaded..."); // in heiken_ashi_tf2 output is heiken_ashi_tf2 loaded, both are shown
}

....

the problem is...

it loads only one heiken ashi, if i change the timeframe sometimes it shows both subwindows but with the same timeframe...

when both are shown, ich see in indikator shotname on my desktop that in subwindow 2 is heiken_ashi_tf1 an in subwindow 3 heiken_ashi_tf2 but both are the same, theres noch difference...

and it loads most time only one subwindow, handle gives no error...

any idea?