Interfaces
 InterfaceDescription
 IButton The IButton interface is a marker interface that indicates that a component acts as a button.
 IFlexDisplayObject The IFlexDisplayObject interface defines the interface for skin elements.
 IFocusManager The IFocusManager interface defines the interface that components must implement to manage the focus on components in response to mouse activity or keyboard activity (Tab key), and to support a default button.
 IFocusManagerContainer The IFocusManagerContainer interface defines the interface that containers implement to host a FocusManager.
 ISystemManager An ISystemManager manages an "application window".
 IUIComponent The IUIComponent interface defines the basic set of APIs that you must implement to create a child of a Flex container or list.