Inside Macintosh: QuickTime /

Chapter 2 - Movie Toolbox / Movie Toolbox Reference

Functions That Modify Movie Properties / Working With Track Time

GetTrackDuration

The GetTrackDuration function returns the duration of a track. The duration corresponds to the ending time of the track in the movie's time coordinate system (remember that all tracks start at movie time 0).

pascal TimeValue GetTrackDuration (Track theTrack);

theTrack

Specifies the track for this operation. Your application obtains this track identifier from such Movie Toolbox functions as NewMovieTrack and GetMovieTrack (described on page 2-136 and page 2-188, respectively).

DESCRIPTION

The GetTrackDuration function returns a time value. This time value indicates the track's duration, and it is expressed in the time scale of the movie that contains the track.

ERROR CODES

invalidTrack

-2009

This track is corrupted or invalid