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SDL_SetGamma(3) 		SDL API Reference		 SDL_SetGamma(3)

NAME
     SDL_SetGamma - Sets the color gamma function for the display

SYNOPSIS
     #include "SDL.h"

     int SDL_SetGamma(float redgamma, float greengamma, float bluegamma);

DESCRIPTION
     Sets  the	"gamma	function" for the display of each color component. Gamma
     controls the brightness/contrast of colors displayed on the screen. A gamma
     value of 1.0 is identity (i.e., no adjustment is made).

     This function adjusts the gamma based on the  "gamma  function"  parameter,
     you   can	 directly  specify  lookup  tables  for  gamma	adjustment  with
     SDL_SetGammaRamp.

     Not all display hardware is able to change gamma.

RETURN VALUE
     Returns -1 on error (or if gamma adjustment is not supported).

SEE ALSO
     SDL_GetGammaRamp SDL_SetGammaRamp

SDL			     Tue 11 Sep 2001, 23:01		 SDL_SetGamma(3)

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