Mercurial > sdl-ios-xcode
view docs/html/sdlpalette.html @ 2318:0c653886cce7
HandleEvent() returns done each time it is called. If done was set to 0 the program should quit, but because done is not checked until *all* events are handled a
following event can reset done to 1 and prevent the program from terminating when told to. I fixed the while loop that handles events to check for the state of done
after handling each event. That could leave some events unhandled when the program exits, but it ensures that the program will exit.
author | Bob Pendleton <bob@pendleton.com> |
---|---|
date | Wed, 20 Feb 2008 23:27:33 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_Palette</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Video" HREF="video.html"><LINK REL="PREVIOUS" TITLE="SDL_Color" HREF="sdlcolor.html"><LINK REL="NEXT" TITLE="SDL_PixelFormat" HREF="sdlpixelformat.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlcolor.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlpixelformat.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLPALETTE" ></A >SDL_Palette</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN3129" ></A ><H2 >Name</H2 >SDL_Palette -- Color palette for 8-bit pixel formats</DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3132" ></A ><H2 >Structure Definition</H2 ><PRE CLASS="PROGRAMLISTING" >typedef struct{ int ncolors; SDL_Color *colors; } SDL_Palette;</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3135" ></A ><H2 >Structure Data</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN3137" ></A ><P ></P ><TABLE BORDER="0" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >ncolors</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Number of colors used in this palette</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >colors</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Pointer to <A HREF="sdlcolor.html" ><SPAN CLASS="STRUCTNAME" >SDL_Color</SPAN ></A > structures that make up the palette.</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3150" ></A ><H2 >Description</H2 ><P >Each pixel in an 8-bit surface is an index into the <TT CLASS="STRUCTFIELD" ><I >colors</I ></TT > field of the <SPAN CLASS="STRUCTNAME" >SDL_Palette</SPAN > structure store in <A HREF="sdlpixelformat.html" ><SPAN CLASS="STRUCTNAME" >SDL_PixelFormat</SPAN ></A >. A <SPAN CLASS="STRUCTNAME" >SDL_Palette</SPAN > should never need to be created manually. It is automatically created when SDL allocates a <SPAN CLASS="STRUCTNAME" >SDL_PixelFormat</SPAN > for a surface. The colors values of a <A HREF="sdlsurface.html" ><SPAN CLASS="STRUCTNAME" >SDL_Surface</SPAN ></A >s palette can be set with the <A HREF="sdlsetcolors.html" ><TT CLASS="FUNCTION" >SDL_SetColors</TT ></A >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3163" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlcolor.html" ><SPAN CLASS="STRUCTNAME" >SDL_Color</SPAN ></A >, <A HREF="sdlsurface.html" ><SPAN CLASS="STRUCTNAME" >SDL_Surface</SPAN ></A >, <A HREF="sdlsetcolors.html" ><TT CLASS="FUNCTION" >SDL_SetColors</TT ></A > <A HREF="sdlsetpalette.html" ><TT CLASS="FUNCTION" >SDL_SetPalette</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlcolor.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlpixelformat.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_Color</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="video.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_PixelFormat</TD ></TR ></TABLE ></DIV ></BODY ></HTML >