Inside Macintosh: QuickTime

Movie Identifiers

You identify a data structure to the Movie Toolbox by means of a data type that is supplied by the Movie Toolbox. The following data types are currently defined:

Media: Specifies the media for an operation. Your application obtains a media identifier from such Movie Toolbox functions as NewTrackMedia and GetTrackMedia (described on NewTrackMedia and GetTrackMedia , respectively).
Movie: Specifies the movie for an operation. Your application obtains a movie identifier from such functions as NewMovie , NewMovieFromFile , and NewMovieFromHandle (described on NewMovie , NewMovieFromFile , and NewMovieFromHandle , respectively).
MovieEditState: Specifies the movie edit state for an operation. Your application obtains a movie edit state identifier when you create the edit state by calling the NewMovieEditState function (described on NewMovieEditState ).
QTCallBack: Specifies the callback for an operation. You obtain a callback identifier from the NewCallBack function (described on NewCallBack ).
TimeBase: Specifies the time base for an operation. Your application obtains a time base identifier from the NewTimeBase or GetMovieTimeBase functions (described on NewTimeBase and GetMovieTimeBase , respectively).
Track: Specifies the track for an operation. Your application obtains a track identifier from such Movie Toolbox functions as NewMovieTrack and GetMovieTrack (described on NewMovieTrack and GetMovieTrack , respectively).
TrackEditState: Specifies the track edit state for an operation. Your application obtains a track edit state identifier when you create the edit state by calling the NewTrackEditState function (described on NewTrackEditState ).
UserData: Specifies the user data list for an operation. You obtain a user data list identifier by calling the GetMovieUserData , GetTrackUserData , or GetMediaUserData functions (described on GetMovieUserData , GetTrackUserData , and GetMediaUserData , respectively).

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