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Wired Movies and Sprites

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Using the Sprite Toolbox to Create Sprite Animations

This chapter discusses the sprite toolbox which is a set of data types and functions you can use to add sprite-based animation to an application. The sprite toolbox handles the following:

• invalidating appropriate areas as sprite properties change
• the composition of sprites and their background on an offscreen buffer
• the transfer of the result to the screen or to an alternate destination.

If you're authoring an animation outside of a movie, you use the sprite toolbox to create sprite worlds and sprite animations. For more information about the constants and data types available to your application in the sprite toolbox, refer to Chapter 7, "Sprite Toolbox API Reference."

To create a sprite track in a QuickTime movie, you create media samples used by the sprite media handler, which, in turn, makes use of the sprite toolbox. For information on how to use the sprite media handler, see Chapter 2, "The Sprite Media Handler."

This chapter is aimed at developers who are using the lower-level sprite toolbox APIs to create sprite animations in their applications, not in a QuickTime movie.