public static void ExtendAeroToFullWindow(Window wnd)
{
IntPtr hwnd = new WindowInteropHelper(wnd).Handle;
wnd.Background = Brushes.Transparent;
HwndSource.FromHwnd(hwnd).CompositionTarget.BackgroundColor = Colors.Transparent;
DWMMargins m = new DWMMargins();
m.top = -1;
m.bottom = -1;
m.left = -1;
m.right = -1;
DwmExtendFrameIntoClientArea(hwnd, ref m);
}
private static extern void DwmExtendFrameIntoClientArea(IntPtr hwnd, ref DWMMargins margins);
