SDL_GetRGBA.3
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Visual C++
- .TH "SDL_GetRGBA" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
- .SH "NAME"
- SDL_GetRGBA- Get RGBA values from a pixel in the specified pixel format&.
- .SH "SYNOPSIS"
- .PP
- fB#include "SDL&.h"
- .sp
- fBvoid fBSDL_GetRGBAfPfR(fBUint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *afR);
- .SH "DESCRIPTION"
- .PP
- Get RGBA component values from a pixel stored in the specified pixel format&.
- .PP
- 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])&.
- .PP
- If the surface has no alpha component, the alpha will be returned as 0xff (100% opaque)&.
- .SH "SEE ALSO"
- .PP
- fISDL_GetRGBfR, fISDL_MapRGBfR, fISDL_MapRGBAfR, fISDL_PixelFormatfR
- ..." created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01