QuickTime 4 Reference

Loading a Movie

QuickTime 2.0 made the data handler component interface available to developers. Data handlers provide a way to access data stored in any location, in any kind of container. Using a data handler, you can access data on a Macintosh hard disk, stored in memory, or stored on a network volume on a non-HFS volume. Although data handlers allow movie data to be stored on any kind of device, before QuickTime 2.0 the movie resource had to be stored on an HFS volume. QuickTime 2.1 provided you with a new function, named NewMovieFromDataRef , that allows a movie to be created from any device that has a corresponding data handler. Use the NewMovieFromDataRef function when you need to instantiate movies from other types of devices.