#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.
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