public static void RemoveAutomationFocusChangedEventHandler(AutomationFocusChangedEventHandler eventHandler)
{
Utility.ValidateArgumentNonNull(eventHandler, "eventHandler");
try
{
FocusEventListener listener = (FocusEventListener)ClientEventList.Remove(AutomationElement.AutomationFocusChangedEvent, null, eventHandler);
Factory.RemoveFocusChangedEventHandler(listener);
}
catch (System.Runtime.InteropServices.COMException e)
{
Exception newEx; if (Utility.ConvertException(e, out newEx))
{
throw newEx;
}
else
{
throw;
}
}
}
public static void AddAutomationFocusChangedEventHandler(AutomationFocusChangedEventHandler eventHandler)
{
Utility.ValidateArgumentNonNull(eventHandler, "eventHandler");
try
{
FocusEventListener listener = new FocusEventListener(eventHandler);
Factory.AddFocusChangedEventHandler(CacheRequest.CurrentNativeCacheRequest, listener);
ClientEventList.Add(listener);
}
catch (System.Runtime.InteropServices.COMException e)
{
Exception newEx; if (Utility.ConvertException(e, out newEx))
{
throw newEx;
}
else
{
throw;
}
}
}