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.
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. Inc. All rights reserved.