forked from KolibriOS/kolibrios
265 lines
3.6 KiB
HTML
265 lines
3.6 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>SDL_CDStatus</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.64
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"><LINK
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REL="HOME"
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TITLE="SDL Library Documentation"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="CD-ROM"
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HREF="cdrom.html"><LINK
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REL="PREVIOUS"
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TITLE="SDL_CDOpen"
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HREF="sdlcdopen.html"><LINK
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REL="NEXT"
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TITLE="SDL_CDPlay"
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HREF="sdlcdplay.html"></HEAD
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><BODY
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CLASS="REFENTRY"
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BGCOLOR="#FFF8DC"
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TEXT="#000000"
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LINK="#0000ee"
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VLINK="#551a8b"
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ALINK="#ff0000"
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><DIV
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CLASS="NAVHEADER"
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><TABLE
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>SDL Library Documentation</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="sdlcdopen.html"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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></TD
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="sdlcdplay.html"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><H1
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><A
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NAME="SDLCDSTATUS"
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>SDL_CDStatus</A
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></H1
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><DIV
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CLASS="REFNAMEDIV"
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><A
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NAME="AEN6759"
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></A
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><H2
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>Name</H2
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>SDL_CDStatus -- Returns the current status of the given drive.</DIV
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><DIV
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CLASS="REFSYNOPSISDIV"
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><A
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NAME="AEN6762"
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></A
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><H2
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>Synopsis</H2
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><DIV
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CLASS="FUNCSYNOPSIS"
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><A
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NAME="AEN6763"
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></A
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><P
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></P
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><PRE
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CLASS="FUNCSYNOPSISINFO"
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>#include "SDL.h"</PRE
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><P
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><CODE
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><CODE
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CLASS="FUNCDEF"
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>CDstatus <B
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CLASS="FSFUNC"
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>SDL_CDStatus</B
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></CODE
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>(SDL_CD *cdrom);</CODE
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></P
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><PRE
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CLASS="FUNCSYNOPSISINFO"
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>/* Given a status, returns true if there's a disk in the drive */
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#define CD_INDRIVE(status) ((int)status > 0)</PRE
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><P
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></P
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></DIV
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN6770"
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></A
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><H2
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>Description</H2
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><P
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>This function returns the current status of the given drive. Status is described like so:
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<PRE
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CLASS="PROGRAMLISTING"
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>typedef enum {
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CD_TRAYEMPTY,
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CD_STOPPED,
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CD_PLAYING,
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CD_PAUSED,
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CD_ERROR = -1
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} CDstatus;</PRE
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></P
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><P
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>If the drive has a CD in it, the table of contents of the CD and current
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play position of the CD will be stored in the SDL_CD structure.</P
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><P
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>The macro <TT
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CLASS="LITERAL"
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>CD_INDRIVE</TT
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> is provided for convenience,
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and given a status returns true if there's a disk in the drive.</P
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><DIV
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CLASS="NOTE"
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><BLOCKQUOTE
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CLASS="NOTE"
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><P
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><B
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>Note: </B
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><TT
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CLASS="FUNCTION"
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>SDL_CDStatus</TT
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> also updates the <A
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HREF="sdlcd.html"
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><SPAN
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CLASS="STRUCTNAME"
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>SDL_CD</SPAN
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></A
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> structure passed to it.</P
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></BLOCKQUOTE
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></DIV
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN6782"
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></A
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><H2
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>Example</H2
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><PRE
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CLASS="PROGRAMLISTING"
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>int playTrack(int track)
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{
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int playing = 0;
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if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
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/* clamp to the actual number of tracks on the CD */
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if (track >= cdrom->numtracks) {
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track = cdrom->numtracks-1;
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}
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if ( SDL_CDPlayTracks(cdrom, track, 0, 1, 0) == 0 ) {
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playing = 1;
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}
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}
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return playing;
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}</PRE
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN6785"
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></A
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><H2
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>See Also</H2
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><P
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><A
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HREF="sdlcd.html"
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><TT
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CLASS="FUNCTION"
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>SDL_CD</TT
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></A
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></P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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WIDTH="100%"
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BORDER="0"
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CELLPADDING="0"
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CELLSPACING="0"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="sdlcdopen.html"
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>Prev</A
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="index.html"
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>Home</A
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></TD
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><TD
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WIDTH="33%"
|
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ALIGN="right"
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VALIGN="top"
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><A
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HREF="sdlcdplay.html"
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>Next</A
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></TD
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></TR
|
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><TR
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><TD
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WIDTH="33%"
|
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ALIGN="left"
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VALIGN="top"
|
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>SDL_CDOpen</TD
|
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><TD
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WIDTH="34%"
|
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ALIGN="center"
|
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VALIGN="top"
|
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><A
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HREF="cdrom.html"
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>Up</A
|
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></TD
|
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><TD
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WIDTH="33%"
|
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ALIGN="right"
|
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VALIGN="top"
|
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>SDL_CDPlay</TD
|
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></TR
|
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></TABLE
|
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></DIV
|
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></BODY
|
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></HTML
|
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> |