C++ MFC Software request focus at startup (blink in task bar)

Question

I have a C++ software based on MFC (CDialog). When it starts it is always requesting for focus, mean it is blinking in the windows task bar.

The issue is that task bar is suppose to be set in out hide mode (because I have some other UI that are supposed to cover the full screen). But since this software always request focus, windows task bar never hide until I show and hide this piece of software...

I have other MFC softwares that do not have this behaviour but so far I cannot find out what could be the difference !

If someone had a idea that would be nice ! Thanks in advance.

Answer 1

Looks like I am doing some progress...

If I had ShowWindow(SW_SHOWNORMAL); just before the return of the OnInitDialog() function, then I don't get this behaviour anymore.

That is of course not perferct because I would like this application to be minimized and silent at startup, but when I try ShowWindow with other agrument I always get this flashing issue back...

Any other ideas are welcome ! Thanks.