Description:
Registers a handler in the Rev app which will be called every time a text sample is loaded in the QT movie. The loaded text is passed a parameter.
Parameters:
MovieControllerID:
Target movieControllerID.
TrackName,TrackIndex:
Target track.
Command:
Command which will be called in revolution.
Target:
Long id of target to send command to.
Index:
Index for callback (1-5).
Return:
Empty or false on error.