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symbian-qemu-0.9.1-12/libsdl-trunk/docs/html/sdlmaprgb.html
author mikek
Mon, 17 May 2010 18:37:02 +0100
changeset 16 ccc8ba7d117c
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Build was broken by a type in gui_common.h
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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<HTML
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><HEAD
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><TITLE
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>SDL_MapRGB</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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"><LINK
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REL="HOME"
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TITLE="SDL Library Documentation"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="Video"
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HREF="video.html"><LINK
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REL="PREVIOUS"
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TITLE="SDL_SetGammaRamp"
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HREF="sdlsetgammaramp.html"><LINK
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REL="NEXT"
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TITLE="SDL_MapRGBA"
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HREF="sdlmaprgba.html"></HEAD
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><BODY
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CLASS="REFENTRY"
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BGCOLOR="#FFF8DC"
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TEXT="#000000"
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LINK="#0000ee"
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VLINK="#551a8b"
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ALINK="#ff0000"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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SUMMARY="Header navigation table"
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>SDL Library Documentation</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="sdlsetgammaramp.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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></TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="sdlmaprgba.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><H1
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><A
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NAME="SDLMAPRGB"
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></A
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>SDL_MapRGB</H1
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><DIV
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CLASS="REFNAMEDIV"
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><A
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NAME="AEN1652"
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></A
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><H2
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>Name</H2
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>SDL_MapRGB&nbsp;--&nbsp;Map a RGB color value to a pixel format.</DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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><A
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NAME="AEN1655"
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></A
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><H2
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>Synopsis</H2
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><DIV
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CLASS="FUNCSYNOPSIS"
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><A
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NAME="AEN1656"
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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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>Uint32 <B
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CLASS="FSFUNC"
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>SDL_MapRGB</B
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></CODE
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>(SDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b);</CODE
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></P
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><P
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></P
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></DIV
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN1662"
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></A
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><H2
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>Description</H2
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><P
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>Maps the RGB color value to the specified pixel format and returns the
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pixel value as a 32-bit int.</P
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diff changeset 
   125
 
><P
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   126
 
>If the format has a palette (8-bit) the index of the closest matching
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   127
 
color in the palette will be returned.</P
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   128
 
><P
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   129
 
>If the specified pixel format has an alpha component it will be returned
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   130
 
as all 1 bits (fully opaque).</P
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   131
 
></DIV
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   132
 
><DIV
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   133
 
CLASS="REFSECT1"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   134
 
><A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   135
 
NAME="AEN1667"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   136
 
></A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   137
 
><H2
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   138
 
>Return Value</H2
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   139
 
><P
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   140
 
>A pixel value best approximating the given RGB color value for a given
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   141
 
pixel format. If the pixel format bpp (color depth) is less than 32-bpp
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   142
 
then the unused upper bits of the return value can safely be ignored
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   143
 
(e.g., with a 16-bpp format the return value can be assigned to a
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   144
 
<SPAN
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   145
 
CLASS="TYPE"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   146
 
>Uint16</SPAN
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   147
 
>, and similarly a <SPAN
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   148
 
CLASS="TYPE"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   149
 
>Uint8</SPAN
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   150
 
> for an 8-bpp
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   151
 
format).</P
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   152
 
></DIV
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   153
 
><DIV
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   154
 
CLASS="REFSECT1"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   155
 
><A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   156
 
NAME="AEN1672"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   157
 
></A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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   158
 
><H2
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   159
 
>See Also</H2
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   160
 
><P
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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   161
 
><A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   162
 
HREF="sdlgetrgb.html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   163
 
><TT
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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   164
 
CLASS="FUNCTION"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   165
 
>SDL_GetRGB</TT
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   166
 
></A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   167
 
>,
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   168
 
<A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   169
 
HREF="sdlgetrgba.html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   170
 
><TT
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   171
 
CLASS="FUNCTION"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   172
 
>SDL_GetRGBA</TT
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   173
 
></A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   174
 
>,
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   175
 
<A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   176
 
HREF="sdlmaprgba.html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   177
 
><TT
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   178
 
CLASS="FUNCTION"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   179
 
>SDL_MapRGBA</TT
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   180
 
></A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   181
 
>,
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   182
 
<A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   183
 
HREF="sdlpixelformat.html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   184
 
><SPAN
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   185
 
CLASS="STRUCTNAME"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   186
 
>SDL_PixelFormat</SPAN
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   187
 
></A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   188
 
></P
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   189
 
></DIV
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   190
 
><DIV
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   191
 
CLASS="NAVFOOTER"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   192
 
><HR
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   193
 
ALIGN="LEFT"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   194
 
WIDTH="100%"><TABLE
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   195
 
SUMMARY="Footer navigation table"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   196
 
WIDTH="100%"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   197
 
BORDER="0"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   198
 
CELLPADDING="0"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   199
 
CELLSPACING="0"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   200
 
><TR
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   201
 
><TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   202
 
WIDTH="33%"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   203
 
ALIGN="left"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   204
 
VALIGN="top"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   205
 
><A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   206
 
HREF="sdlsetgammaramp.html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   207
 
ACCESSKEY="P"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   208
 
>Prev</A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   209
 
></TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   210
 
><TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   211
 
WIDTH="34%"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   212
 
ALIGN="center"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   213
 
VALIGN="top"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   214
 
><A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   215
 
HREF="index.html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   216
 
ACCESSKEY="H"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   217
 
>Home</A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   218
 
></TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   219
 
><TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   220
 
WIDTH="33%"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   221
 
ALIGN="right"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   222
 
VALIGN="top"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   223
 
><A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
diff changeset 
   224
 
HREF="sdlmaprgba.html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   225
 
ACCESSKEY="N"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   226
 
>Next</A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   227
 
></TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   228
 
></TR
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   229
 
><TR
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   230
 
><TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   231
 
WIDTH="33%"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   232
 
ALIGN="left"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   233
 
VALIGN="top"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   234
 
>SDL_SetGammaRamp</TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   235
 
><TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   236
 
WIDTH="34%"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   237
 
ALIGN="center"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   238
 
VALIGN="top"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   239
 
><A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   240
 
HREF="video.html"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   241
 
ACCESSKEY="U"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   242
 
>Up</A
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   243
 
></TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   244
 
><TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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diff changeset 
   245
 
WIDTH="33%"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   246
 
ALIGN="right"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   247
 
VALIGN="top"
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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   248
 
>SDL_MapRGBA</TD
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
diff changeset 
   249
 
></TR
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   250
 
></TABLE
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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   251
 
></DIV
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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></BODY
2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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2fb8b9db1c86 Initial QEMU (symbian-qemu-0.9.1-12) import
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parents:
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FCL/interim/QEMU