.TH "SDL_MapRGB" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 

.SH "NAME"

SDL_MapRGB \- Map a RGB color value to a pixel format\&.

.SH "SYNOPSIS"

.PP

\fB#include "SDL\&.h"

.sp

\fBUint32 \fBSDL_MapRGB\fP\fR(\fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b\fR);

.SH "DESCRIPTION"

.PP

Maps the RGB 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 an alpha component it will be returned as all 1 bits (fully opaque)\&.

.SH "RETURN VALUE"

.PP

A pixel value best approximating the given RGB 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 \fBUint16\fP, and similarly a \fBUint8\fP for an 8-bpp format)\&.

.SH "SEE ALSO"

.PP

\fI\fBSDL_GetRGB\fP\fR, \fI\fBSDL_GetRGBA\fP\fR, \fI\fBSDL_MapRGBA\fP\fR, \fI\fBSDL_PixelFormat\fR\fR

...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01