QMedia Movie track commands |

### QM_SetTrackVolume

QM_SetTrackVolume(movieRef; trackID; trackVolume):error
| movieRef | Longint | Movie reference
| trackID | Longint | Track ID
| trackVolume | Longint | Track volume
| error | Longint | Error result

Changes the sound volume of a track.

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

Parameter trackID is the ID of the track.

Parameter trackVolume specifies the track's sound volume. It must be in the range of -255...255. A value of 0 means no sound at all. Negative values also mute the track, but they preserve the absolute sound volume value.

Example

``Set the volume of track ID $trackID of movie $movie to maximum` `` `C_LONGINT($volume)` `` `$volume:=255` `` `$err:=QM_SetTrackVolume ($movie;$trackID;$volume)` `` ``

Related commands

QM_GetTrackVolume | Returns the track's sound volume.

QMedia © Escape OE
Generated by QDoc 2.8 on Thu, Nov 24, 2011 18:41:05