private static Cursor CreateMyCursor(BitmapSource source, int width, int height)
        {
            const int f = 4;
            var bmp = new Bitmap(width, height);
            Graphics g = Graphics.FromImage(bmp);
            g.SmoothingMode = SmoothingMode.HighQuality;
            g.InterpolationMode = InterpolationMode.HighQualityBicubic;
            var pen = new System.Drawing.Pen(System.Drawing.Brushes.Black, 2.0F);
            g.DrawRectangle(pen, new Rectangle(f, f, width - 2 * f, width - 2 * f));
            g.Flush();
            g.Dispose();
            pen.Dispose();
            return BitmapCursor.CreateBmpCursor(bmp);
        }

        public class BitmapCursor : SafeHandle
        {
            public override bool IsInvalid
            {
                get
                {
                    return handle == (IntPtr)(-1);
                }
            }

            public static Cursor CreateBmpCursor(Bitmap cursorBitmap)
            {

                var c = new BitmapCursor(cursorBitmap);

                return CursorInteropHelper.Create(c);
            }

            protected BitmapCursor(Bitmap cursorBitmap)
                : base((IntPtr)(-1), true)
            {
                handle = cursorBitmap.GetHicon();
            }

            protected override bool ReleaseHandle()
            {
                bool result = DestroyIcon(handle);

                handle = (IntPtr)(-1);

                return result;
            }

            [DllImport("user32")]
            private static extern bool DestroyIcon(IntPtr hIcon);
        }