Mercurial > sdl-ios-xcode
view docs/html/sdlcdplaytracks.html @ 2328:91e601d9df8b
re: bug#563. checking in some commented out trace code and a fix so that the in testalpha.c the background only flashes when alpha == 255. The problem that is being
fixed is caused by clearing SDL_COPY_RLE_COLORKEY without setting SDL_COPY_RLE_DESIRED in SDL_UnRELSurface.
author | Bob Pendleton <bob@pendleton.com> |
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date | Fri, 14 Mar 2008 18:17:49 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_CDPlayTracks</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="CD-ROM" HREF="cdrom.html"><LINK REL="PREVIOUS" TITLE="SDL_CDPlay" HREF="sdlcdplay.html"><LINK REL="NEXT" TITLE="SDL_CDPause" HREF="sdlcdpause.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="sdlcdplay.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlcdpause.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLCDPLAYTRACKS" ></A >SDL_CDPlayTracks</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7375" ></A ><H2 >Name</H2 >SDL_CDPlayTracks -- Play the given CD track(s)</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN7378" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN7379" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_CDPlayTracks</B ></CODE >(SDL_CD *cdrom, int start_track, int start_frame, int ntracks, int nframes));</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7385" ></A ><H2 >Description</H2 ><P ><TT CLASS="FUNCTION" >SDL_CDPlayTracks</TT > plays the given CD starting at track <TT CLASS="PARAMETER" ><I >start_track</I ></TT >, for <TT CLASS="PARAMETER" ><I >ntracks</I ></TT > tracks. </P ><P ><TT CLASS="PARAMETER" ><I >start_frame</I ></TT > is the frame offset, from the beginning of the <TT CLASS="PARAMETER" ><I >start_track</I ></TT >, at which to start. <TT CLASS="PARAMETER" ><I >nframes</I ></TT > is the frame offset, from the beginning of the last track (<TT CLASS="PARAMETER" ><I >start_track</I ></TT >+<TT CLASS="PARAMETER" ><I >ntracks</I ></TT >), at which to end playing.</P ><P ><TT CLASS="FUNCTION" >SDL_CDPlayTracks</TT > should only be called after calling <A HREF="sdlcdstatus.html" ><TT CLASS="FUNCTION" >SDL_CDStatus</TT ></A > to get track information about the CD.</P ><DIV CLASS="NOTE" ><BLOCKQUOTE CLASS="NOTE" ><P ><B >Note: </B >Data tracks are ignored.</P ></BLOCKQUOTE ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7403" ></A ><H2 >Return Value</H2 ><P >Returns <SPAN CLASS="RETURNVALUE" >0</SPAN >, or <SPAN CLASS="RETURNVALUE" >-1</SPAN > if there was an error.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7408" ></A ><H2 >Examples</H2 ><P ><PRE CLASS="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 ><DIV CLASS="REFSECT1" ><A NAME="AEN7412" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlcdplay.html" ><TT CLASS="FUNCTION" >SDL_CDPlay</TT ></A >, <A HREF="sdlcdstatus.html" ><TT CLASS="FUNCTION" >SDL_CDStatus</TT ></A >, <A HREF="sdlcd.html" ><TT CLASS="FUNCTION" >SDL_CD</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="sdlcdplay.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="sdlcdpause.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_CDPlay</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="cdrom.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_CDPause</TD ></TR ></TABLE ></DIV ></BODY ></HTML >