SDL_MapRGBA.3
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Visual C++
- .TH "SDL_MapRGBA" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
- .SH "NAME"
- SDL_MapRGBA- Map a RGBA color value to a pixel format&.
- .SH "SYNOPSIS"
- .PP
- fB#include "SDL&.h"
- .sp
- fBUint32 fBSDL_MapRGBAfPfR(fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b, Uint8 afR);
- .SH "DESCRIPTION"
- .PP
- Maps the RGBA color value to the specified pixel format and returns the pixel value as a 32-bit int&.
- .PP
- If the format has a palette (8-bit) the index of the closest matching color in the palette will be returned&.
- .PP
- If the specified pixel format has no alpha component the alpha value will be ignored (as it will be in formats with a palette)&.
- .SH "RETURN VALUE"
- .PP
- A pixel value best approximating the given RGBA color value for a given pixel format&. If the pixel format bpp (color depth) is less than 32-bpp then the unused upper bits of the return value can safely be ignored (e&.g&., with a 16-bpp format the return value can be assigned to a fBUint16fP, and similarly a fBUint8fP for an 8-bpp format)&.
- .SH "SEE ALSO"
- .PP
- fISDL_GetRGBfR, fISDL_GetRGBAfR, fISDL_MapRGBfR, fISDL_PixelFormatfR
- ..." created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01