QMedia Annotation commands |

### QM_SetTrackAnnotation

QM_SetTrackAnnotation(movieRef; trackID; annType; annText):error
| movieRef | Longint | Movie reference
| trackID | Longint | Track ID
| annType | String4 | Annotation type
| annText | Text | Annotation text
| error | Longint | Error result

Changes a text annotation in a track. If the specified annotation does not exist, it is created.

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 annType specifies the annotation type. For a list of QMedia constants for specifying common annotation types, see the QM_GetMovieAnnTypes command.

Parameter annText is the annotation's text.

Example

``Set the track's comment` `` `C_TEXT($comment)` `$comment:="This is a comment"` `$err:=QM_SetTrackAnnotation ($movie;$trackID;qm_CommentAnn;$comment)` ``

Related commands

QM_GetTrackAnnTypes | Returns the annotation types of all annotations present in a track.
QM_GetTrackAnnotation | Returns a text annotation from a track.

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