Programming With QuickTime VR 2.1
The QuickTime VR movie controller is a movie controller component that manages the interface for presenting QuickTime VR movies to users and allowing them to navigate and explore in those movies. This component is stored in the QuickTime VR extension and is loaded automatically whenever the user opens a QuickTime VR movie. A special piece of user data in a QuickTime VR movie file indicates the movie controller to use; see "Specifying a Movie Controller" (page 11) for instructions on including that user data in a QuickTime VR file.