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SDL_GetRGB

Get RGB values from a pixel in the specified format.

Syntax

void SDL_GetRGB(Uint32 pixel,
                const SDL_PixelFormat * format,
                Uint8 * r, Uint8 * g, Uint8 * b);

Function Parameters

pixel

a pixel value

format

an SDL_PixelFormat structure describing the format of the pixel

r

a pointer filled in with the red component

g

a pointer filled in with the green component

b

a pointer filled in with the blue component

Remarks

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]).

SDL_GetRGBA
SDL_MapRGB
SDL_MapRGBA

CategoryAPI, CategoryPixels


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