diff -r ffa851df0825 -r 2fb8b9db1c86 symbian-qemu-0.9.1-12/libsdl-trunk/docs/html/sdlgetrgba.html --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/symbian-qemu-0.9.1-12/libsdl-trunk/docs/html/sdlgetrgba.html Fri Jul 31 15:01:17 2009 +0100 @@ -0,0 +1,222 @@ +SDL_GetRGBA
SDL Library Documentation
PrevNext

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

PrevHomeNext
SDL_GetRGBUpSDL_CreateRGBSurface
\ No newline at end of file