Exposes methods and properties to support UI Automation client access to controls that visually expand to display content and collapse to hide content.
Collapse Hides all nodes, controls, or content that are descendants of the control. Expand Displays all child nodes, controls or content of the control. ExpandCollapseState Retrieves the state, expanded or collapsed, of the control.
Implemented on a UI Automation provider that must support the TransformPattern control pattern.
Inherits from IUnknown Header and IDL files uiautomation.h, uiautomationcore.idl Minimum operating systems Windows XP