QMedia Movie track commands |

### QM_SetTrackOffset

QM_SetTrackOffset(movieRef; trackID; trackOffset):error
| movieRef | Longint | Movie reference
| trackID | Longint | Track ID
| trackOffset | Longint | Track offset
| error | Longint | Error result

Changes the starting offset of a track. The track offset is the duration of the empty space at the beginning of the track. Changing the track's offset also affects the track's duration.

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 trackOffset specifies the track's offset and must be expressed in the movie's time scale.

Example

``Set the offset of track ID $trackID of movie $movie to 5 seconds` `` `C_LONGINT($timeScale)` `$error:=QM_GetTimeScale ($movieRef;$timeScale)` `` `C_LONGINT($offset)` `$offset:=$timeScale*5` `` `$err:=QM_SetTrackOffset ($movie;$trackID;$offset)` `` ``

Related commands

QM_GetTrackOffset | Returns the track's offset.

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