IUIAutomation::RemoveFocusChangedEventHandler Method

Removes a focus-changed event handler.

Syntax

HRESULT RemoveFocusChangedEventHandler(      
    IUIAutomationFocusChangedEventHandler *handler
);

Parameters

• handler
  [in] The address of the IUIAutomationFocusChangedEventHandler interface of the event handler that was passed to IUIAutomation::AddFocusChangedEventHandler.

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::RemovePropertyChangedEventHandler, IUIAutomation::RemoveStructureChangedEventHandler