Table of Contents
- atk.Action — the ATK interface provided by UI components that the user
      can activate/interact with, 
 - atk.Component — the ATK interface provided by UI components that occupy a
      physical area on the screen.  
 - atk.Document — the ATK interface which allows access to a DOM associated
      with on object.  
 - atk.EditableText — the ATK interface implemented by components containing
      user-editable text content.  
 - atk.GObjectAccessible — this object class is derived from AtkObject and can be
      used as a basis implementing accessible objects.  
 - atk.Hyperlink — An ATK object which encapsulates a link or set of links in a hypertext document.  
 - atk.Hypertext — the ATK interface which provides standard mechanism for
      manipulating hyperlinks.  
 - atk.Image — the ATK Interface implemented by components that expose
      image or pixmap content on-screen.  
 - atk.Implementor
 - atk.NoOpObject — an 
atk.Object
      which purports to implement all ATK interfaces.   - atk.NoOpObjectFactory — the 
atk.ObjectFactory
      which creates an atk.NoOpObject.
       - atk.Object — the base object class for the Accessibility Toolkit
      API.
 - atk.ObjectFactory — the base object class for a factory used to create
      accessible objects for objects of a specific GType.  
 - atk.Rectangle — an object holding data about a rectangle
 - atk.Registry — an object used to store the GType of the factories used to
      create an accessible object for an object of a particular GType.
      
 - atk.Relation — an object used to describe a relation between a object and
      one or more other objects.  
 - atk.RelationSet — a set of 
atk.Relation
      objects, normally the set of atk.Relation
      objects that an atk.Object
      has. - atk.Selection — the ATK interface implemented by container objects whose
      
atk.Object
      children can be selected.   - atk.StateSet — an 
atk.StateSet
      determines a component's state set. - atk.StreamableContent — the ATK interface which provides access to streamable
      content.  
 - atk.Table — the ATK interface implemented for UI components which
      contain tabular or row/column information.  
 - atk.Text — the ATK interface implemented by components with text
      content.
 - atk.Value — the ATK interface implemented by valuators and components
      which display or select a value from a bounded range of values.
      
 - atk Constants — the built-in constants of the atk module