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Road Map to QuickTime 4

Movie Toolbox: New Features

The sections in this chapter describe the new features of the movie toolbox, added since QuickTime 1.6 (up to QuickTime 4.0). An overview of all the new features is provided, followed by detailed information on access keys.

New Features of the Movie Toolbox

QuickTime 4 Reference describes all features added to the QuickTime Movie Toolbox after version 1.6 (up to version 4.0). This section provides the best introduction to these topics, and is of interest to most developers, including those already familiar with QuickTime. The new features documented include:

• Preloading Tracks
• Hints
• Data References
• Timecode Media Handler
• Track References
• Chapter Lists
• Modifier Tracks
• Data Handler Components
• QT Atoms (see also: Movie Toolbox: Data Types)
• Support for Access Keys
• Compressed Movie Resources
• Support for Progressive Downloads

Using Access Keys

QuickTime 4 Reference explains how to use access keys for working with encrypted data. The topic is introduced in "New Features of the Movie Toolbox," above. This section contains sample code for registering, unregistering and getting access keys. It also illustrates the Access Keys portion of the QuickTime control panel.

Access Key Functions

QuickTime 4 Reference describes the functions used to get, register, and unregister access keys. Access keys are used when working with encrypted data.

• QTGetAccessKeys
• QTRegisterAccessKey
• QTUnregisterAccessKey