public static void AddStructureChangedEventHandler(AutomationElement element, TreeScope scope, StructureChangedEventHandler eventHandler)
{
Utility.ValidateArgumentNonNull(element, "element");
Utility.ValidateArgumentNonNull(eventHandler, "eventHandler");
Utility.ValidateArgumentNonNull(eventHandler, "eventHandler");
try
{
StructureEventListener listener = new StructureEventListener(AutomationElement.StructureChangedEvent, element, eventHandler);
Factory.AddStructureChangedEventHandler(
element.NativeElement,
(UIAutomationClient.TreeScope)scope,
CacheRequest.CurrentNativeCacheRequest,
listener);
ClientEventList.Add(listener);
}
catch (System.Runtime.InteropServices.COMException e)
{
Exception newEx; if (Utility.ConvertException(e, out newEx))
{
throw newEx;
}
else
{
throw;
}
}
}
public static void RemoveStructureChangedEventHandler(AutomationElement element, StructureChangedEventHandler eventHandler)
{
Utility.ValidateArgumentNonNull(element, "element");
Utility.ValidateArgumentNonNull(eventHandler, "eventHandler");
try
{
StructureEventListener listener = (StructureEventListener)ClientEventList.Remove(AutomationElement.StructureChangedEvent, element, eventHandler);
Factory.RemoveStructureChangedEventHandler(element.NativeElement, listener);
}
catch (System.Runtime.InteropServices.COMException e)
{
Exception newEx; if (Utility.ConvertException(e, out newEx))
{
throw newEx;
}
else
{
throw;
}
}
}