📄 sdllistmodes.html

📁 VC5.6.7的一个扩展库。跟DirectX的功能差不多。
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<HTML><HEAD><TITLE>SDL_ListModes</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_VideoDriverName"HREF="sdlvideodrivername.html"><LINKREL="NEXT"TITLE="SDL_VideoModeOK"HREF="sdlvideomodeok.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="sdlvideodrivername.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sdlvideomodeok.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLLISTMODES"></A>SDL_ListModes</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN1159"></A><H2>Name</H2>SDL_ListModes&nbsp;--&nbsp;Returns a pointer to an array of available screen dimensions for the given format and video flags</DIV><DIVCLASS="REFSYNOPSISDIV"><ANAME="AEN1162"></A><H2>Synopsis</H2><DIVCLASS="FUNCSYNOPSIS"><ANAME="AEN1163"></A><P></P><PRECLASS="FUNCSYNOPSISINFO">#include "SDL.h"</PRE><P><CODE><CODECLASS="FUNCDEF">SDL_Rect **<BCLASS="FSFUNC">SDL_ListModes</B></CODE>(SDL_PixelFormat *format, Uint32 flags);</CODE></P><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN1169"></A><H2>Description</H2><P>Return a pointer to an array of available screen dimensions for the givenformat and video flags, sorted largest to smallest.  Returns<TTCLASS="LITERAL">NULL</TT> if there are no dimensions available for a particularformat, or <SPANCLASS="RETURNVALUE">-1</SPAN> if any dimension is okay forthe given format.</P><P>If <TTCLASS="PARAMETER"><I>format</I></TT> is <TTCLASS="LITERAL">NULL</TT>, the mode listwill be for the format returned by <AHREF="sdlgetvideoinfo.html">SDL_GetVideoInfo()</A>-&#62;<TTCLASS="STRUCTFIELD"><I>vfmt</I></TT>. The <TTCLASS="PARAMETER"><I>flag</I></TT> parameter is an OR'd combination of <AHREF="sdlsurface.html">surface</A> flags. The flags are the same as those used <AHREF="sdlsetvideomode.html"><TTCLASS="FUNCTION">SDL_SetVideoMode</TT></A> and they play a strong role in deciding what modes are valid. For instance, if you pass <TTCLASS="LITERAL">SDL_HWSURFACE</TT> as a flag only modes that support hardware video surfaces will be returned.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN1184"></A><H2>Example</H2><PRECLASS="PROGRAMLISTING">SDL_Rect **modes;int i;.../* Get available fullscreen/hardware modes */modes=SDL_ListModes(NULL, SDL_FULLSCREEN|SDL_HWSURFACE);/* Check is there are any modes available */if(modes == (SDL_Rect **)0){  printf("No modes available!\n");  exit(-1);}/* Check if our resolution is restricted */if(modes == (SDL_Rect **)-1){  printf("All resolutions available.\n");}else{  /* Print valid modes */  printf("Available Modes\n");  for(i=0;modes[i];++i)    printf("  %d x %d\n", modes[i]-&#62;w, modes[i]-&#62;h);}..</PRE></DIV><DIVCLASS="REFSECT1"><ANAME="AEN1187"></A><H2>See Also</H2><P><AHREF="sdlsetvideomode.html"><TTCLASS="FUNCTION">SDL_SetVideoMode</TT></A>,<AHREF="sdlgetvideoinfo.html"><TTCLASS="FUNCTION">SDL_GetVideoInfo</TT></A>,<AHREF="sdlrect.html"><SPANCLASS="STRUCTNAME">SDL_Rect</SPAN></A>,<AHREF="sdlpixelformat.html"><SPANCLASS="STRUCTNAME">SDL_PixelFormat</SPAN></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="sdlvideodrivername.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="sdlvideomodeok.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">SDL_VideoDriverName</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="video.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">SDL_VideoModeOK</TD></TR></TABLE></DIV></BODY></HTML>
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