SDL_GetRGBA

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SDL Library Documentation
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SDL_GetRGBA

Name

SDL_GetRGBA -- Get RGBA values from a pixel in the specified pixel format.

Synopsis

#include "SDL.h"

void SDL_GetRGBA(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a);


  
    
    Description
    Get RGBA component values from a pixel stored in the specified pixel format.
    This function uses the entire 8-bit [0..255] range when converting color
components from pixel formats with less than 8-bits per RGB component
(e.g., a completely white pixel in 16-bit RGB565 format would return
[0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8]).
    If the surface has no alpha component, the alpha will be returned as 0xff
(100% opaque).
  
  
    
    See Also
    SDL_GetRGB,
SDL_MapRGB,
SDL_MapRGBA,
SDL_PixelFormat
  
  
    
    
      
        
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        SDL_GetRGB
        
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        SDL_CreateRGBSurface



  
  
    
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