SDL_GetRGBA — Get RGBA values from a pixel in the specified pixel format.
#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 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).
SDL_GetRGB, SDL_MapRGB, SDL_MapRGBA, SDL_PixelFormat
| COPYRIGHT |
|---|
|
This manual page is taken from the SDL library, licensed under GNU LGPL. |