Way to increase gamma in OpenGL?

[Boom]

Is there some software tool out there that can increase the gamma in all openGL apps across the board with my G400? I think nVidia's drivers have something like this for their boards, so it should be possible.

[Nuno]

I think powerstrip can do it

http://tweakfiles.com/video/powerstrip.html

[Liquid Snake]

I use PowerStrip to increase the brightness. It's not only for OpenGL, but increases the brightness everywhere (Desktop, D3D..)

[Boom]

Thanks. I installed PowerStrip v2.78. The only gamma control I could find was in "color calibration," but I could not make it increase gamma for openGL (works well for the desktop though, but that's not what I need). I tried selecting OpenGL in the pulldown menu and cranking the gamma, but it didn't work. Any ideas?

Also, just so I'm clear: PowerStrip can increase gamma in openGL only, right? Not everything together? Because if I wanted to increase gamma in everything, I could just adjust my monitor, or do so in the Matrox drivers....