ZForge.Controls.TreeViewAdv.Tree.TreeViewAdv.DrawScrollBarsBox C# (CSharp) Метод

        private void DrawScrollBarsBox(Graphics gr)
        {
            Rectangle r1 = DisplayRectangle;
            Rectangle r2 = ClientRectangle;
            gr.FillRectangle(SystemBrushes.Control,
                new Rectangle(r1.Right, r1.Bottom, r2.Width - r1.Width, r2.Height - r1.Height));
        }