📄 sdlcdplaytracks.html
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<HTML><HEAD><TITLE>SDL_CDPlayTracks</TITLE><METANAME="GENERATOR"CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+"><LINKREL="HOME"TITLE="SDL Library Documentation"HREF="index.html"><LINKREL="UP"TITLE="CD-ROM"HREF="cdrom.html"><LINKREL="PREVIOUS"TITLE="SDL_CDPlay"HREF="sdlcdplay.html"><LINKREL="NEXT"TITLE="SDL_CDPause"HREF="sdlcdpause.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="sdlcdplay.html"ACCESSKEY="P">Prev</A></TD><TDWIDTH="80%"ALIGN="center"VALIGN="bottom"></TD><TDWIDTH="10%"ALIGN="right"VALIGN="bottom"><AHREF="sdlcdpause.html"ACCESSKEY="N">Next</A></TD></TR></TABLE><HRALIGN="LEFT"WIDTH="100%"></DIV><H1><ANAME="SDLCDPLAYTRACKS"></A>SDL_CDPlayTracks</H1><DIVCLASS="REFNAMEDIV"><ANAME="AEN7375"></A><H2>Name</H2>SDL_CDPlayTracks -- Play the given CD track(s)</DIV><DIVCLASS="REFSYNOPSISDIV"><ANAME="AEN7378"></A><H2>Synopsis</H2><DIVCLASS="FUNCSYNOPSIS"><ANAME="AEN7379"></A><P></P><PRECLASS="FUNCSYNOPSISINFO">#include "SDL.h"</PRE><P><CODE><CODECLASS="FUNCDEF">int <BCLASS="FSFUNC">SDL_CDPlayTracks</B></CODE>(SDL_CD *cdrom, int start_track, int start_frame, int ntracks, int nframes));</CODE></P><P></P></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN7385"></A><H2>Description</H2><P><TTCLASS="FUNCTION">SDL_CDPlayTracks</TT> plays the given CD starting at track<TTCLASS="PARAMETER"><I>start_track</I></TT>, for <TTCLASS="PARAMETER"><I>ntracks</I></TT> tracks. </P><P><TTCLASS="PARAMETER"><I>start_frame</I></TT> is the frame offset, from the beginning of the <TTCLASS="PARAMETER"><I>start_track</I></TT>, at which to start. <TTCLASS="PARAMETER"><I>nframes</I></TT> is the frame offset, from the beginning of the last track (<TTCLASS="PARAMETER"><I>start_track</I></TT>+<TTCLASS="PARAMETER"><I>ntracks</I></TT>), at which to end playing.</P><P><TTCLASS="FUNCTION">SDL_CDPlayTracks</TT> should only be called after calling <AHREF="sdlcdstatus.html"><TTCLASS="FUNCTION">SDL_CDStatus</TT></A> to get track information about the CD.</P><DIVCLASS="NOTE"><BLOCKQUOTECLASS="NOTE"><P><B>Note: </B>Data tracks are ignored.</P></BLOCKQUOTE></DIV></DIV><DIVCLASS="REFSECT1"><ANAME="AEN7403"></A><H2>Return Value</H2><P>Returns <SPANCLASS="RETURNVALUE">0</SPAN>, or <SPANCLASS="RETURNVALUE">-1</SPAN> if there was an error.</P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN7408"></A><H2>Examples</H2><P><PRECLASS="PROGRAMLISTING">/* assuming cdrom is a previously opened device *//* Play the entire CD */if(CD_INDRIVE(SDL_CDStatus(cdrom))) SDL_CDPlayTracks(cdrom, 0, 0, 0, 0);/* Play the first track */if(CD_INDRIVE(SDL_CDStatus(cdrom))) SDL_CDPlayTracks(cdrom, 0, 0, 1, 0);/* Play first 15 seconds of the 2nd track */if(CD_INDRIVE(SDL_CDStatus(cdrom))) SDL_CDPlayTracks(cdrom, 1, 0, 0, CD_FPS*15);</PRE> </P></DIV><DIVCLASS="REFSECT1"><ANAME="AEN7412"></A><H2>See Also</H2><P><AHREF="sdlcdplay.html"><TTCLASS="FUNCTION">SDL_CDPlay</TT></A>,<AHREF="sdlcdstatus.html"><TTCLASS="FUNCTION">SDL_CDStatus</TT></A>,<AHREF="sdlcd.html"><TTCLASS="FUNCTION">SDL_CD</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="sdlcdplay.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="sdlcdpause.html"ACCESSKEY="N">Next</A></TD></TR><TR><TDWIDTH="33%"ALIGN="left"VALIGN="top">SDL_CDPlay</TD><TDWIDTH="34%"ALIGN="center"VALIGN="top"><AHREF="cdrom.html"ACCESSKEY="U">Up</A></TD><TDWIDTH="33%"ALIGN="right"VALIGN="top">SDL_CDPause</TD></TR></TABLE></DIV></BODY></HTML>⌨️ 快捷键说明
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