MQL5 ScreenShot() method

[Gilberto Graciano De Melo Junior]

Hi,

I tried using the following method for taking chart screenshots, but it's not working, I have searched the MQL5 folder for any pictures of the screenshots and I haven't found anything.

https://www.mql5.com/en/docs/standardlibrary/cchart/cchartscreenshot

Bellow there is a code snipped of the function I'm calling inside the OnTick() loop

#include <Charts\Chart.mqh>
Cchart chart;

OnTick()
	{
	}

void OnTradeTransaction(const MqlTradeTransaction & trans,
                        const MqlTradeRequest & request,
                        const MqlTradeResult & result)
  {
	takeScreenShot();
  }

void takeScreenShot()
  {
   string name="ScreenShot"+GetTickCount()+".gif"; //using GetTickCount to generate unique screenshot names everytime
   ChartNavigate(0,CHART_END,0);
   chart.ScreenShot(name,1000,600,ALIGN_RIGHT);
  }

I guess there must be restrictions on how to use it.

Also tried using the ChartScreenShot() in a similar fashion but it can't be called inside OnTick() (only works inside OnChartEvent() ) for some unknown reason...... maybe it applies also to chart.ScreenShot()

I wanted to take screenshots everytime I enter and exit a trade, I don't have clue how to do it inside the OnChartEvent() since it requires interaction with the chart.

Thanks in advance.

[Gilberto Graciano De Melo Junior]

Anyone?

[Dominik Egert]

At least the right point in time would be using OnTrade() handler.

Do you get an Error code when using GetLastError()?

[Gilberto Graciano De Melo Junior]

Dominik Egert:

At least the right point in time would be using OnTrade() handler.

Do you get an Error code when using GetLastError()?

Sorry for the delay, GetLastError() is returning "0".....

[Denis Sim]

The first parameter isn't a filename, it's a chart ID.

By the way, I cannot take a screenshot except the current chart.