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<HTML><HEAD><TITLE>SDL_Palette</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="SDL Library Documentation"HREF="index.html"><LINKREL="UP"TITLE="Video"HREF="video.html"><LINKREL="PREVIOUS"TITLE="SDL_Color"HREF="sdlcolor.html"><LINKREL="NEXT"TITLE="SDL_PixelFormat"HREF="sdlpixelformat.html"></HEAD><BODYCLASS="REFENTRY"BGCOLOR="#FFF8DC"TEXT="#000000"LINK="#0000ee"VLINK="#551a8b"ALINK="#ff0000"><DIVCLASS="NAVHEADER"><TABLESUMMARY="Header navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><THCOLSPAN="3"ALIGN="center">SDL Library Documentation</TH></TR><TR><TDWIDTH="10%"ALIGN="left"VALIGN="bottom"><AHREF="sdlcolor.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sdlpixelformat.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLPALETTE"></A>SDL_Palette</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN3129"></A><H2>Name</H2>SDL_Palette -- Color palette for 8-bit pixel formats</DIV><DIVCLASS="REFSECT1"><ANAME="AEN3132"></A><H2>Structure Definition</H2><PRECLASS="PROGRAMLISTING">typedef struct{ int ncolors; SDL_Color *colors;} SDL_Palette;</PRE></DIV><DIVCLASS="REFSECT1"><ANAME="AEN3135"></A><H2>Structure Data</H2><DIVCLASS="INFORMALTABLE"><ANAME="AEN3137"></A><P></P><TABLEBORDER="0"CLASS="CALSTABLE"><TBODY><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>ncolors</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP">Number of colors used in this palette</TD></TR><TR><TDALIGN="LEFT"VALIGN="TOP"><TTCLASS="STRUCTFIELD"><I>colors</I></TT></TD><TDALIGN="LEFT"VALIGN="TOP">Pointer to <AHREF="sdlcolor.html"><SPANCLASS="STRUCTNAME">SDL_Color</SPAN></A> structures that make up the palette.</TD></TR></TBODY></TABLE><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN3150"></A><H2>Description</H2><P>Each pixel in an 8-bit surface is an index into the <TTCLASS="STRUCTFIELD"><I>colors</I></TT> field of the <SPANCLASS="STRUCTNAME">SDL_Palette</SPAN> structure store in <AHREF="sdlpixelformat.html"><SPANCLASS="STRUCTNAME">SDL_PixelFormat</SPAN></A>. A <SPANCLASS="STRUCTNAME">SDL_Palette</SPAN> should never need to be created manually. It is automatically created when SDL allocates a <SPANCLASS="STRUCTNAME">SDL_PixelFormat</SPAN> for a surface. The colors values of a <AHREF="sdlsurface.html"><SPANCLASS="STRUCTNAME">SDL_Surface</SPAN></A>s palette can be set with the <AHREF="sdlsetcolors.html"><TTCLASS="FUNCTION">SDL_SetColors</TT></A>.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN3163"></A><H2>See Also</H2><P><AHREF="sdlcolor.html"><SPANCLASS="STRUCTNAME">SDL_Color</SPAN></A>,<AHREF="sdlsurface.html"><SPANCLASS="STRUCTNAME">SDL_Surface</SPAN></A>,<AHREF="sdlsetcolors.html"><TTCLASS="FUNCTION">SDL_SetColors</TT></A><AHREF="sdlsetpalette.html"><TTCLASS="FUNCTION">SDL_SetPalette</TT></A></P></DIV><DIVCLASS="NAVFOOTER"><HRALIGN="LEFT"WIDTH="100%"><TABLESUMMARY="Footer navigation table"WIDTH="100%"BORDER="0"CELLPADDING="0"CELLSPACING="0"><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top"><AHREF="sdlcolor.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="index.html"ACCESSKEY="H">Home</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top"><AHREF="sdlpixelformat.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">SDL_Color</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="video.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">SDL_PixelFormat</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
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