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Revision 10 as of 2010-08-22 01:22:27
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Editor: SheenaSmith
Comment: add 'draft' note
Revision 11 as of 2010-09-26 17:07:42
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Editor: SheenaSmith
Comment: update content (w/ Sam); remove 'draft' note
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*<<BR>>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]). <<BR>>* 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]).
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 .[[SDL_MapRGB]] *
 .[[SDL_MapRGBA]] *
 .[[SDL_MapRGB]]
 .[[SDL_MapRGBA]]

SDL_GetRGB

Use this function to 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 to a value that will be filled with the red component

g

a pointer to a value that will be filled with the green component

b

a pointer to a value that will be filled with the blue component

Code Examples

You can add your code example here

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]).


CategoryAPI, CategoryPixels

None: SDL_GetRGB (last edited 2010-10-16 05:52:23 by SheenaSmith)

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