public static void ExtendGlassFrame(Window window, Thickness thikness)
{
try
{
int isGlassEnabled = 0;
DwmIsCompositionEnabled(ref isGlassEnabled);
if (Environment.OSVersion.Version.Major > 5 && isGlassEnabled > 0)
{
// Get the window handle
WindowInteropHelper helper = new WindowInteropHelper(window);
HwndSource mainWindowSrc = (HwndSource)HwndSource.
FromHwnd(helper.Handle);
mainWindowSrc.CompositionTarget.BackgroundColor =
Colors.Transparent;
// Get the dpi of the screen
System.Drawing.Graphics desktop =
System.Drawing.Graphics.FromHwnd(mainWindowSrc.Handle);
float dpiX = desktop.DpiX / 96;
float dpiY = desktop.DpiY / 96;
// Set Margins
MARGINS margins = new MARGINS();
margins.cxLeftWidth = (int)(thikness.Left * dpiX);
margins.cxRightWidth = (int)(thikness.Right * dpiX);
margins.cyBottomHeight = (int)(thikness.Bottom * dpiY);
margins.cyTopHeight = (int)(thikness.Top * dpiY);
window.Background = Brushes.Transparent;
int hr = DwmExtendFrameIntoClientArea(mainWindowSrc.Handle,
ref margins);
}
else
{
window.Background = SystemColors.WindowBrush;
}
}
catch (DllNotFoundException)
{
}
}
static extern int DwmExtendFrameIntoClientArea(IntPtr hWnd, ref MARGINS pMarInset);