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231 lines
3.0 KiB
231 lines
3.0 KiB
<HTML |
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>SDL_GetRGB</TITLE |
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TITLE="SDL_MapRGBA" |
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TITLE="SDL_GetRGBA" |
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HREF="sdlgetrgba.html"></HEAD |
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>SDL Library Documentation</TH |
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><H1 |
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><A |
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NAME="SDLGETRGB" |
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>SDL_GetRGB</H1 |
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><DIV |
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CLASS="REFNAMEDIV" |
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><A |
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NAME="AEN1718" |
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></A |
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><H2 |
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>Name</H2 |
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>SDL_GetRGB -- Get RGB values from a pixel in the specified pixel format.</DIV |
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CLASS="REFSYNOPSISDIV" |
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NAME="AEN1721" |
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><H2 |
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>Synopsis</H2 |
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NAME="AEN1722" |
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></A |
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><P |
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></P |
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><PRE |
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CLASS="FUNCSYNOPSISINFO" |
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>#include "SDL.h"</PRE |
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><P |
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><CODE |
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><CODE |
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CLASS="FUNCDEF" |
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>void <B |
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CLASS="FSFUNC" |
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>SDL_GetRGB</B |
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></CODE |
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>(Uint32 pixel, SDL_PixelFormat *fmt, Uint8 *r, Uint8 *g, Uint8 *b);</CODE |
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></P |
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><A |
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NAME="AEN1728" |
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><H2 |
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>Description</H2 |
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><P |
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>Get RGB component values from a pixel stored in the specified pixel format.</P |
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><P |
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>This function uses the entire 8-bit [0..255] range when converting color |
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components from pixel formats with less than 8-bits per RGB component |
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(e.g., a completely white pixel in 16-bit RGB565 format would return |
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[0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8]).</P |
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CLASS="REFSECT1" |
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><A |
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NAME="AEN1732" |
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><H2 |
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>See Also</H2 |
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><P |
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><A |
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HREF="sdlgetrgba.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_GetRGBA</TT |
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></A |
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>, |
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<A |
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HREF="sdlmaprgb.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_MapRGB</TT |
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></A |
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>, |
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<A |
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HREF="sdlmaprgba.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_MapRGBA</TT |
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></A |
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>, |
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<A |
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HREF="sdlpixelformat.html" |
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><SPAN |
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CLASS="STRUCTNAME" |
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>SDL_PixelFormat</SPAN |
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>SDL_MapRGBA</TD |
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