Hierarchical Navigation

Often clients must move between objects based on their parent-child relationships. For example, a client might already have information about a toolbar control, but not have information about the buttons contained within it.

The IAccessible interface exposes the hierarchical relationships between objects. Clients can navigate from a parent object to its children or from a child object to its parent by calling IAccessible::get_accParent or IAccessible::get_accChild.