SDL_SetGamma

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SDL Library Documentation
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SDL_SetGamma

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
  
  
    
    
      
        
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