public Monitor(UIElement element)
{
this.Element = element;
this.HwndSource = ScreenLocation.FindTopLevelHwndSource(element);
this.Element.LayoutUpdated += new EventHandler(this.OnLayoutUpdated);
PresentationSource.AddSourceChangedHandler((IInputElement)element, new SourceChangedEventHandler(this.OnPresentationSourceChanged));
}
private void OnPresentationSourceChanged(object sender, SourceChangedEventArgs args)
{
this.HwndSource = ScreenLocation.FindTopLevelHwndSource((UIElement)sender);
this.TryUpdateLocation();
}
