SDL_CDStatus

Langue: en

Version: 121891 (mandriva - 01/05/08)

Section: 3 (Bibliothèques de fonctions)

NAME

SDL_CDStatus - Returns the current status of the given drive.

SYNOPSIS

#include "SDL.h"

CDstatus SDL_CDStatus(SDL_CD *cdrom); /* Given a status, returns true if there's a disk in the drive */ #define CD_INDRIVE(status) ((int)status > 0)  

DESCRIPTION

This function returns the current status of the given drive. Status is described like so:

 typedef enum {
   CD_TRAYEMPTY,
   CD_STOPPED,
   CD_PLAYING,
   CD_PAUSED,
   CD_ERROR = -1
 } CDstatus;
 

If the drive has a CD in it, the table of contents of the CD and current play position of the CD will be stored in the SDL_CD structure.

The macro CD_INDRIVE is provided for convenience, and given a status returns true if there's a disk in the drive.

Note:
SDL_CDStatus
also updates the SDL_CD structure passed to it.

EXAMPLE

 int playTrack(int track)
 {
   int playing = 0;
 
   if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
   /* clamp to the actual number of tracks on the CD */
     if (track >= cdrom->numtracks) {
       track = cdrom->numtracks-1;
     }
 
     if ( SDL_CDPlayTracks(cdrom, track, 0, 1, 0) == 0 ) {
       playing = 1;
     }
   }
   return playing;
 }
 

SEE ALSO

SDL_CD