User Guide

The Flash Document Object Model 17
Finally, some objects are subclasses of other objects, rather than being children of other
objects. An object that is a subclass of another object has methods and/or properties of its own
in addition to the methods and properties of the other object (the superclass). Subclasses share
the same level in the hierarchy as their superclass. For example, the Item object is a superclass
of the BitmapItem object (see Item object and BitmapItem object). These relationships are
illustrated in the following outline:
01 Top-Level Functions and Methods
01 FLfile object
01 flash object (fl)
02 componentsPanel object
02 Document object (
fl.documents array)
03 Filter object
03 Matrix object
03 Fill object
03 Stroke object
03 library object
04 Item object (
library.items array)
04 BitmapItem object (subclass of Item object)
04 folderItem object (subclass of Item object)
04 fontItem object (subclass of Item object)
04 SoundItem object (subclass of Item object)
04 SymbolItem object (subclass of Item object)
04 VideoItem object (subclass of Item object)
03 Timeline object (
document.timelines array)
04 Layer object (timeline.layers array)
05 Frame object (
layer.frames array)
06 Element object (frame.elements array)
07 Matrix object (Element.matrix)