SDL_GetGammaRamp - Gets the color gamma lookup tables for the display
#include "SDL.h" int SDL_GetGammaRamp(Uint16 *redtable, Uint16 *greentable, Uint16 *bluetable);
Gets the gamma translation lookup tables currently used by the display. Each table is an array of 256 Uint16 values. Not all display hardware is able to change gamma.
Returns -1 on error.
SDL_SetGamma SDL_SetGammaRamp