January 2013
Beginner
312 pages
7h 11m
English
Content preview from Understanding Macromedia Flash 8 ActionScript 2Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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12 Built-in Classes
Built-in Classes
ActionScript 2 makes it possible to create new, custom classes, but it also includes some essential, ready-to-go classes authored by Macromedia. Through these classes, Flash provides functionality that would otherwise be impossible to achieve. AS2's built-in classes are special because they actually act as interfaces to underlying low-level program code. This low-level code interacts directly with the computer's hardware to control the display, audio output, file I/O, and to get input from the keyboard, mouse, network, etc.
AS2 utilizes many built-in classes, but there are several which are important to this book and which deserve special attention. These include:
The MovieClip Class
The Key Class
The Sound ...
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