Mercurial > sdl-ios-xcode
view docs/html/sdlcdplaytracks.html @ 1013:a649064a3215
Date: Tue, 14 Dec 2004 12:08:30 +0100
From: Marcin Konicki
Subject: Re: [SDL] SDL 1.2.8 Prerelease
I'm sending small fix for BeOS, which prevents filling up SDL's message
queue too fast.
Without it, SDL receives "key down" messages from BeOS code, for each key
repeat (BeOS handles key repeats itself, and application can check if
received "key down" message from BeOS is first time key down, or if it's
repeat, and which repeat it is). Since there is no way for "sdl driver" to
turn off "default" SDL's key-repeat mechanism, they were working both at
the same time (and queue could be filled up very fast).
So this patch removes handling "key down" message from BeOS if it's
key_repeat "type".
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 14 Dec 2004 18:23:27 +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 >