SetGamma
SetGamma is a command line gamma ramp adjustment utility. It adjusts the hardware gamma ramp on the primary display adapter.
Usage: setgamma [gamma] [-reset] [-red gamma -green gamma -blue gamma]
|    gamma |    Uniform RGB gamma value. |
|    -reset |    Reset gamma ramp to 1.0. |
|    -red |    Red gamma value. |
|    -green |    Green gamma value. |
|    -blue |    Blue gamma value. |
Copyright 2004 Chris Dohnal