private static void UpdateZOrderOfOwner(IntPtr hwndOwner)
        {
            var lastOwnedWindow = IntPtr.Zero;

            NativeMethods.EnumThreadWindows(NativeMethods.GetCurrentThreadId(), (hwnd, lParam) =>
            {
                if (NativeMethods.GetWindow(hwnd, 4) == hwndOwner)
                {
                    lastOwnedWindow = hwnd;
                }
                return(true);
            }, IntPtr.Zero);
            if (!(lastOwnedWindow != IntPtr.Zero) || !(NativeMethods.GetWindow(hwndOwner, 3) != lastOwnedWindow))
            {
                return;
            }
            NativeMethods.SetWindowPos(hwndOwner, lastOwnedWindow, 0, 0, 0, 0, 19);
        }