OpenGrok

#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)

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.

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;
}

SDL_CD created by instant / docbook-to-man, Tue 11 Sep 2001, 22:58