IUIAutomation::RemovePropertyChangedEventHandler Method

Removes a property-changed event handler.

Syntax

HRESULT RemovePropertyChangedEventHandler(      
    IUIAutomationElement *element,
    IUIAutomationPropertyChangedEventHandler *handler
);

Parameters

• element
  [in] The address of the IUIAutomationElement interface of the UI Automation element from which to remove the handler.
• handler
  [in] The interface that was passed to IUIAutomation::AddPropertyChangedEventHandler.

Return Value

Returns S_OK if successful, or an error value otherwise.

Remarks

A UI Automation client should not use multiple threads to add or remove event handlers. Unexpected behavior can result if one event handler is being added or removed while another is being added or removed in the same client process.

See Also

IUIAutomation::RemoveAllEventHandlers, IUIAutomation::RemoveAutomationEventHandler, IUIAutomation::RemoveFocusChangedEventHandler, IUIAutomation::RemoveStructureChangedEventHandler