private void DragButton_Click(object sender, RoutedEventArgs e)
        {
            if (Owner == null)
            {
                return;
            }

            var opaque = (sender as ToggleButton).IsChecked.Value;

            Owner.IsHitTestVisible = opaque;

            var hwnd = new WindowInteropHelper(Owner).Handle;

            if (opaque)
            {
                WindowsServices.SetWindowExOpaque(hwnd);
            }
            else
            {
                WindowsServices.SetWindowExTransparent(hwnd);
            }

            e.Handled = true;
        }
Beispiel #2
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        private void Window_SourceInitialized(object sender, EventArgs e)
        {
            var hwnd = new WindowInteropHelper(this).Handle;

            WindowsServices.SetWindowExTransparent(hwnd);
        }