public static bool RetractGlassFrame(Window window)
{
if (!Native.DwmIsCompositionEnabled())
{
return(false);
}
try
{
var hwnd = new WindowInteropHelper(window).Handle;
if (hwnd == IntPtr.Zero)
{
throw new InvalidOperationException("The Window must be shown before retracting the glass.");
}
#region Set the background to transparent from both the WPF and Win32 perspectives
var brush = window.TryFindResource("Panel.Background.Level3") as SolidColorBrush ?? new SolidColorBrush(Color.FromArgb(255, 241, 241, 241));
window.Background = brush;
var hwndSource = HwndSource.FromHwnd(hwnd);
if (hwndSource?.CompositionTarget != null)
{
hwndSource.CompositionTarget.BackgroundColor = brush.Color;
}
#endregion
var margins = new Native.Margins(new Thickness(0, 0, 0, 0));
Native.DwmExtendFrameIntoClientArea(hwnd, ref margins);
return(true);
}
catch (Exception ex)
{
LogWriter.Log(ex, "Error • Retracting Glass");
}
return(false);
}
public static bool ExtendGlassFrame(Window window, Thickness margin)
{
if (!Native.DwmIsCompositionEnabled())
{
return(false);
}
try
{
var hwnd = new WindowInteropHelper(window).Handle;
if (hwnd == IntPtr.Zero)
{
throw new InvalidOperationException("The Window must be shown before extending glass.");
}
#region Set the background to transparent from both the WPF and Win32 perspectives
window.Background = Brushes.Transparent;
var hwndSource = HwndSource.FromHwnd(hwnd);
if (hwndSource?.CompositionTarget != null)
{
hwndSource.CompositionTarget.BackgroundColor = Colors.Transparent;
}
#endregion
var margins = new Native.Margins(margin);
Native.DwmExtendFrameIntoClientArea(hwnd, ref margins);
//TODO: Check if margins are dpi sensitive.
return(true);
}
catch (Exception ex)
{
LogWriter.Log(ex, "Error • Glass");
}
return(false);
}