Flash. Extending standart component

Today one of our coworkers encountered an interesting problem. He was trying to extend button class (from Macromedia v2 components) with custom design and functionality. And he failed at first. Because it not obvious stated, I guess, in product documentation, that “Every visual component should have a boundingBox symbol“ (that was his problem). Anyway before doing something it is necessary spending some time for reading about it. Even if you feel being expert…

http://www.macromedia.com/devnet/flash/articles/buildtest_comp.html
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http://livedocs.macromedia.com/flash/mx2004/main_7_2/00003080.html
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http://www.person13.com/articles/components/creatingcomponents.html
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