Extending product function with VBA : Automation and System Architect : Automation : Viewing automation objects
  
Viewing automation objects
Once a reference has been set to another application, then a list of the objects, attributes and methods of all the currently referenced type libraries may be viewed. The Microsoft VBA editor has its own object browser to view all of these properties.
To access the Microsoft VBA Object Browser, either press F2 or click View > Object Browser in the Microsoft VBA Editor.
The object browser lists all libraries that have been selected in the type library references although an individual set of objects may be chosen. In the example below, SA2001 has been chosen as the type library, and in particular the Definition class of automation objects.
The members of the Definition class are listed and GetProperty is selected. The parameters including type and return type are detailed in the lower pane. By declaring a reference to an automation object all this internal application information becomes available to the Microsoft VBA programmer for building an integrated solution.
See also
Automation