Inside Macintosh: QuickTime /

Chapter 2 - Movie Toolbox / Movie Toolbox Reference

Functions That Modify Movie Properties / Locating a Movie's Tracks and Media Structures

GetTrackID

The GetTrackID function allows your application to determine a track's unique track ID value. This ID value remains unique throughout the life of the movie.

pascal long GetTrackID (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 GetTrackID function returns the track's ID value. If the function could not determine the ID value, it sets this returned value to 0.

ERROR CODES

invalidTrack

-2009

This track is corrupted or invalid