SetFocus / SendMessage Error when clicked taskbar.

[[Deleted]]

I made an indicator that can automatically put ea to chart.

If i click windows taskbar (bottom), the indicator loses focus and the setfocus,key_event cannot work anymore.

Is there any function that can setfocus over the taskbar?

I tried SetForegroundWindow and ShowWindow BringWindowToTop ..etc. no one works.

I imagine an indicator / ea that can change chart's ea freely.

This source cannot work when I clicked taskbar.

///////////////////////////////////////

int t_handle=GetAncestor(WindowHandle(Symbol(),Period()),2);

   Print("Focus : ",SetFocus(t_handle)," ",t_handle);   

//  The EA's hotkey is Ctri+1

      keybd_event(VK_CONTROL,0,0,0);

      keybd_event(VK_1,0,0,0);

      keybd_event(VK_1,0,KEYEVENTF_KEYUP,0);

      keybd_event(VK_CONTROL,0,KEYEVENTF_KEYUP,0);