view docs/html/sdlgetrgb.html @ 1775:5572e4204f36

Date: Sun, 7 May 2006 19:22:33 -0400 From: Mike Frysinger Subject: [SDL] [patch] fix building with DirectFB-0.9.25.1 another DirectFB release, another small bit of API breakage :) this time around, DIKI_ALTGR has been removed and DIKI_ALT_R is supposed to be used ... DIKI_ALT_R is not a new define, so there shouldnt be any need for checking the DirectFB version ... it should work with older DirectFB's as well thanks to Sascha Schwarz for pointing this out on the Gentoo bugzilla: http://bugs.gentoo.org/132571 -mike
author Sam Lantinga <slouken@libsdl.org>
date Mon, 08 May 2006 02:09:34 +0000
parents 355632dca928
children
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>SDL_GetRGB</H1
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><H2
>Name</H2
>SDL_GetRGB&nbsp;--&nbsp;Get RGB values from a pixel in the specified pixel format.</DIV
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>Synopsis</H2
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><PRE
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>#include "SDL.h"</PRE
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><CODE
><CODE
CLASS="FUNCDEF"
>void <B
CLASS="FSFUNC"
>SDL_GetRGB</B
></CODE
>(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b);</CODE
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>Description</H2
><P
>Get RGB component values from a pixel stored in the specified pixel format.</P
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>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]).</P
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><TT
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>SDL_GetRGBA</TT
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>,
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><TT
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>SDL_MapRGB</TT
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><TT
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>SDL_MapRGBA</TT
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>SDL_PixelFormat</SPAN
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