Accessibility Data Model
To use the accessibility framework, you first need to get a reference to the registry. This can be done by activating the identifier OAFIID:Accessibility_Registry:1.0.
The registry's getDesktop() method can be used to get access to the desktop(s) in the login session.
The desktop object is the root of a tree of Accessible objects, with applications as the children.
Application accessibles have window frames as children.