Opengl brightness!!!!

Hi, you guys know how I could change the default gamma level for all opengl application? I used to have a video card that would let you change gamma settings for all opengl applications in the display properties, but now I have a new one that doesn’t let you.

Can I increase the opengl gamma manually?

Can a program do it for me?

The game I use already has its brigtness settings set to highest, now i need to increase opengl gamma.