Wired Movies and Sprites

Introduction to Wired Movies

Wired movies enable you to create QuickTime movies that are interactive. User input is translated into QuickTime events. In response to these QuickTime events, actions may be performed. Each action has a specific target, which is the element in a movie the action is performed on. Target types include sprites, tracks, and the movie itself. A few actions do not require a target. Actions have a set of parameters that help describe how the target element is changed.

Typical wired actions--such as jumping to a particular time in a movie or setting a sprite's image index--enable you to create a sprite that acts as a button. In response to a mouse down event, for example, a wired sprite could change its own image index property, so that its button-pressed image is displayed. In response to a mouse up event, the sprite can change its image index property back to the button up image and, additionally, specify that the movie jump to a particular time.

Introduction to Wired Movies

Adding Actions

QuickTime Events

Actions and Their Targets

Action Parameters

Expressions

Operators

Operands

External Movie Targets for Wired Actions in QuickTime 4