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SDL_GetRGBA(3)		       SDL API Reference		SDL_GetRGBA(3)


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


#include "SDL.h" void SDL_GetRGBA(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a);


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 com- ponent (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).


SDL_GetRGB, SDL_MapRGB, SDL_MapRGBA, SDL_PixelFormat SDL Tue 11 Sep 2001, 23:01 SDL_GetRGBA(3)

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