QMedia Movie track commands


QM_GetTrackUsage(movieRef; trackID; trackUsage):error
movieRef Longint Movie reference
trackID Longint Track ID
trackUsage Longint Track usage flags
error Longint Error result

Returns the track's usage in the movie. A track can be used in the movie, in the movie's preview, poster, or any combination in these.

Parameter movieRef is the reference to the movie instance. The movie reference must have been previously obtained with a call to QM_NewMovieFromFile.

Parameter trackID is the ID of the track.

Parameter trackUsage receives the track's usage in the movie. The trackUsage is the combination(with addition or bitwise "or") of any of the following constants.

qm_TrackUsedInMovie 2 Track is used in movie
qm_TrackUsedInPreview 4 Track is used in movie preview
qm_TrackUsedInPoster 8 Track is used in poster frame


  `Get the usage of track ID $trackID of movie $movie
$err:=QM_GetTrackUsage ($movie;$trackID;$trackUsage)

Related commands

QM_SetTrackUsage Specifies the track's usage in the movie.

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