public static EventListener Remove(AutomationEvent eventId, AutomationElement element, Delegate handler)
{
// Create a prototype to seek
int[] runtimeId = (element == null) ? null : element.GetRuntimeId();
EventListener prototype = new EventListener(eventId.Id, runtimeId, handler);
lock (_events)
{
LinkedListNode <EventListener> node = _events.Find(prototype);
if (node == null)
{
throw new ArgumentException("event handler not found");
}
EventListener result = node.Value;
_events.Remove(node);
return(result);
}
}
public BasicEventListener(AutomationEvent eventKind, AutomationElement element, AutomationEventHandler handler) :
base(eventKind.Id, element.GetRuntimeId(), handler)
{
Debug.Assert(handler != null);
this._basicHandler = handler;
}
public StructureEventListener(AutomationEvent eventKind, AutomationElement element, StructureChangedEventHandler handler) :
base(AutomationElement.StructureChangedEvent.Id, element.GetRuntimeId(), handler)
{
Debug.Assert(handler != null);
this._structureChangeHandler = handler;
}
public PropertyEventListener(AutomationEvent eventKind, AutomationElement element, AutomationPropertyChangedEventHandler handler) :
base(AutomationElement.AutomationPropertyChangedEvent.Id, element.GetRuntimeId(), handler)
{
Debug.Assert(handler != null);
this._propChangeHandler = handler;
}
