/// <summary>
/// Extends the glass frame.
/// </summary>
/// <param name="window">The window.</param>
/// <param name="margin">The margin.</param>
/// <returns></returns>
public static bool ExtendGlassFrame(System.Windows.Window window, Thickness margin)
{
if (Environment.OSVersion.Platform == PlatformID.Win32NT && Environment.OSVersion.Version.Major >= 6 && DwmIsCompositionEnabled())
{
IntPtr hwnd = new WindowInteropHelper(window).Handle;
if (hwnd == IntPtr.Zero)
throw new InvalidOperationException("The Window must be shown before extending glass.");
// Set the background to transparent from both the WPF and Win32 perspectives
window.Background = Brushes.Transparent;
HwndSource.FromHwnd(hwnd).CompositionTarget.BackgroundColor = Colors.Transparent;
MARGINS margins = new MARGINS(margin);
DwmExtendFrameIntoClientArea(hwnd, ref margins);
return true;
} else return false;
}
static extern void DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS margins);