private void Form1_Load(object sender, EventArgs e)
        {
            Bitmap bitmap1 = Bitmap.FromHicon(SystemIcons.Hand.Handle);
            Graphics formGraphics = this.CreateGraphics();
            GraphicsUnit units = GraphicsUnit.Point;

            RectangleF bmpRectangleF = bitmap1.GetBounds(ref units);
            Rectangle bmpRectangle = Rectangle.Round(bmpRectangleF);
            formGraphics.DrawRectangle(Pens.Blue, bmpRectangle);
            formGraphics.Dispose();
            this.pictureBox1.Image = bitmap1;
        }