Custom accessible objects
- 
AtkGObjectAccessible — This object class is derived from AtkObject and
can be used as a basis implementing accessible objects.
- 
AtkHyperlink — An ATK object which encapsulates a link or set
of links in a hypertext document.
- 
AtkNoOpObject — An AtkObject which purports to implement all ATK interfaces.
- 
AtkPlug — Toplevel for embedding into other processes
- 
AtkSocket — Container for AtkPlug objects from other processes