Gamma Control v3 also offers custom hotkeys! With Gamma Control you can adjust the gamma on your computer. Let me give you an example of when to use it:
If you are playing a game, lets say Counter Strike. In Counter Strike there are a lot of dark places, where you will only be able to spot your enemy, by moving your crosshair over him, so the enemies' name will appear. Well, Gamma Control is the solution to that. When you turn up your gamma, you will make everything a lot brighter, making the dark place your enemy is camping in, a lot brighter. Which will make it a lot easier for you to spot him first. - That was only an example, this program can be used in many games, windows desktop, programs. Enjoy.