OpenGL window stays in taskbar problem

Psycho-Coder · 2002-10-19T16:45:13

I use some part of Nehe OpenGL code for my apps. I have just one smll problem. Sometimes (not allways) when I quit the app via the ESC key the program quits ok, but the window title stays on the taskbar. When i click on it, it dissapears. Its onlya a small problem but it gets frustrating when I have 20+ small boxes on the task bar. This only happens with fullscreen. I use Win98se. It also happens with the NeHe tutorials. Does anybody know how to fix this. Hmm maybe somebody can give me a link to some other openGL basecode that does not do this?

Graphics and GPU Programming Programming OpenGL

Started by Psycho-Coder October 16, 2002 09:38 AM

15 comments, last by Psycho-Coder 21 years, 6 months ago

Psycho-Coder

122

Author

October 17, 2002 04:07 PM

But it causes this warning:

warning C4700: local variable ''dwExStyle'' used without having been initialized
Linking...

How is it possible to pass a non init var to a func and it still works better than ever: I dont know but I hepe somebody in the forum will bring up an explanation.

All of this fuss about a little window stayng in the taskbar

)))))

Anonymous

October 17, 2002 04:17 PM

i had that problem also, i fixed it by minimizing the window before exiting the program.

Landsknecht

234

October 17, 2002 04:47 PM

GeForce 4 is kinda old???? Granted, the MX version is nowhere near as good as the Ti, but still it is damn near the top of gaming cards atm...

God was my co-pilot but we crashed in the mountains and I had to eat him...
Landsknecht

My sig used to be, "God was my co-pilot but we crashed in the mountains and I had to eat him..."
But folks whinned and I had to change it.

Anonymous

October 17, 2002 04:53 PM

PLEASE set dwExStyle to 0:

dwExStyle = 0;

Instead of commenting out the line, replace the WS_EX_OVERLAPPEDWINDOW with a zero. You''ve just been lucky that it hasn''t been anything important in dwExStyle when it''s not initialized. Dangerous stuff

Psycho-Coder

122

Author

October 19, 2002 02:29 AM

Hmm i was wondering about that think too, and it does cause some minor problems, but when u set it to zero, guess what it does the same as on the WS_EX_OVERLAPPEDWINDOW setting, maybe thi window is a little different but when its fullscreen u dont see it.

1 mere Q: how do yoi minimize the window?

onyxmaster

122

October 19, 2002 03:01 AM

Just add ShowWindow(window_handle, SW_HIDE) before closing window (and changing modes too).

-- onyXMaster

Psycho-Coder

122

Author

October 19, 2002 04:45 PM

By adding this code before the release of DC and RC will fix the problem:

  ANIMATIONINFO info;    info.cbSize = sizeof(info);    SystemParametersInfo(SPI_GETANIMATION,sizeof(info),&info,0);    int animationWasOn = info.iMinAnimate;    if(animationWasOn)								// if window anim on disable it    {        info.iMinAnimate = false;        SystemParametersInfo(SPI_SETANIMATION, sizeof(info), &info, 0);    }	ShowWindow(hWnd, SW_MINIMIZE);					// cool this prevents a bug		if(animationWasOn)								// enable it back again    {        info.iMinAnimate = true;        SystemParametersInfo(SPI_SETANIMATION, sizeof(info), &info,0);    }

It minimizes the window, disabling and enabling window animation if necesarry (if on)!

OpenGL window stays in taskbar problem

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