public static Bitmap GetDesktop()
        {
            int screenX;
            int screenY;
            IntPtr hBmp;
            IntPtr hdcScreen = GetDC(GetDesktopWindow());
            IntPtr hdcCompatible = CreateCompatibleDC(hdcScreen);

            screenX = GetSystemMetrics(0);
            screenY = GetSystemMetrics(1);
            hBmp = CreateCompatibleBitmap(hdcScreen, screenX, screenY);

            if (hBmp != IntPtr.Zero)
            {
                IntPtr hOldBmp = (IntPtr)SelectObject(hdcCompatible, hBmp);
                BitBlt(hdcCompatible, 0, 0, screenX, screenY, hdcScreen, 0, 0, 13369376);

                SelectObject(hdcCompatible, hOldBmp);
                DeleteDC(hdcCompatible);
                ReleaseDC(GetDesktopWindow(), hdcScreen);

                Bitmap bmp = System.Drawing.Image.FromHbitmap(hBmp);

                DeleteObject(hBmp);
                GC.Collect();

                return bmp;
            }