SDL_SetGamma - Online Linux Manual PageSection : 3
Updated : Tue 11 Sep 2001, 23:01
Source : SDL
Note : SDL API Reference

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NAMESDL_SetGamma − Sets the color gamma function for the display

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SYNOPSIS#include "SDL​.h" int SDL_SetGamma(float redgamma, float greengamma, float bluegamma);

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DESCRIPTIONSets 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​.

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RETURN VALUEReturns -1 on error (or if gamma adjustment is not supported)​.

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SEE ALSOSDL_GetGammaRamp SDL_SetGammaRamp 0

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