public static void AddAutomationEventHandler(AutomationEvent eventId, AutomationElement element, TreeScope scope, AutomationEventHandler eventHandler)
{
Utility.ValidateArgumentNonNull(element, "element");
Utility.ValidateArgumentNonNull(eventHandler, "eventHandler");
Utility.ValidateArgument(eventId != AutomationElement.AutomationFocusChangedEvent, "Use FocusChange notification instead");
Utility.ValidateArgument(eventId != AutomationElement.StructureChangedEvent, "Use StructureChange notification instead");
Utility.ValidateArgument(eventId != AutomationElement.AutomationPropertyChangedEvent, "Use PropertyChange notification instead");
try
{
BasicEventListener listener = new BasicEventListener(eventId, element, eventHandler);
Factory.AddAutomationEventHandler(
eventId.Id,
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 RemoveAutomationEventHandler(AutomationEvent eventId, AutomationElement element, AutomationEventHandler eventHandler)
{
Utility.ValidateArgumentNonNull(element, "element");
Utility.ValidateArgumentNonNull(eventHandler, "eventHandler");
Utility.ValidateArgument(eventId != AutomationElement.AutomationFocusChangedEvent, "Use FocusChange notification instead");
Utility.ValidateArgument(eventId != AutomationElement.StructureChangedEvent, "Use StructureChange notification instead");
Utility.ValidateArgument(eventId != AutomationElement.AutomationPropertyChangedEvent, "Use PropertyChange notification instead");
try
{
BasicEventListener listener = (BasicEventListener)ClientEventList.Remove(eventId, element, eventHandler);
Factory.RemoveAutomationEventHandler(eventId.Id, element.NativeElement, listener);
}
catch (System.Runtime.InteropServices.COMException e)
{
Exception newEx; if (Utility.ConvertException(e, out newEx))
{
throw newEx;
}
else
{
throw;
}
}
}