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CentOS 7.0 - man page for sdl_getgammaramp (centos section 3)

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SDL_GetGammaRamp(3)			SDL API Reference		      SDL_GetGammaRamp(3)

NAME
       SDL_GetGammaRamp - Gets the color gamma lookup tables for the display

SYNOPSIS
       #include "SDL.h"

       int SDL_GetGammaRamp(Uint16 *redtable, Uint16 *greentable, Uint16 *bluetable);

DESCRIPTION
       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.

RETURN VALUE
       Returns -1 on error.

SEE ALSO
       SDL_SetGamma SDL_SetGammaRamp

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