September 2007
Beginner
264 pages
6h 1m
English
Content preview from Adobe Flash CS3 Professional How-Tos: 100 Essential TechniquesBecome 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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Chapter Three. Using Symbols and the Library
Most of the power of Flash comes from its ability to create and manipulate symbols. A symbol is a master object that resides in one place—a panel called the Library—but can generate multiple copies of itself that can be used anywhere in Flash. Symbols offer a variety of advantages:
• Economy. If you have a visible object that’s intended to appear more than once in a Flash movie, you can convert it to a symbol. You can then place any number of instances (copies) of that symbol on the Stage without any significant increase in the movie’s file size.
• Adaptability. Whenever you make a change in a symbol, that change is instantly reflected in all instances of the symbol.
• Flexibility. Every symbol has ...
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