view docs/html/sdlgetrgb.html @ 4016:3f93ccc2c01e SDL-1.2

Clear the NOFRAME and RESIZABLE flags in the X11 target before setting their new values, so multiple calls to SetVideoMode() that toggle these will end up with the right data. Fixes Bugzilla #441.
author Ryan C. Gordon <icculus@icculus.org>
date Sun, 08 Jul 2007 01:50:26 +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
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><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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><H2
>Description</H2
><P
>Get RGB component values from a pixel stored in the specified pixel format.</P
><P
>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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><A
HREF="sdlgetrgba.html"
><TT
CLASS="FUNCTION"
>SDL_GetRGBA</TT
></A
>,
<A
HREF="sdlmaprgb.html"
><TT
CLASS="FUNCTION"
>SDL_MapRGB</TT
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>,
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><TT
CLASS="FUNCTION"
>SDL_MapRGBA</TT
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>SDL_PixelFormat</SPAN
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