private static void OnIsPopupEventTransparentPropertyChanged(DependencyObject target, DependencyPropertyChangedEventArgs e)
{
FrameworkElement element = target as FrameworkElement;
if ((bool)e.NewValue == true)
{
FrameworkElement topParent = VisualTreeHelpers.GetTopParent(element) as FrameworkElement;
topParent.Opacity = 0.4;
HwndSource popupHwndSource = HwndSource.FromVisual(element) as HwndSource;
WindowHelper.SetWindowExTransparent(popupHwndSource.Handle);
}
else
{
FrameworkElement topParent = VisualTreeHelpers.GetTopParent(element) as FrameworkElement;
topParent.Opacity = 1.0;
HwndSource popupHwndSource = HwndSource.FromVisual(element) as HwndSource;
WindowHelper.UndoWindowExTransparent(popupHwndSource.Handle, element);
}
}
