BrrrBayBay.PwmGUIControl.LogicChannelControl.OnPaint C# (CSharp) Метод

        protected override void OnPaint(PaintEventArgs e)
        {
            if (this.coloredBorders)
            {

                e.Graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
                e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

                IntPtr hWnd = this.Handle;
                IntPtr hRgn = IntPtr.Zero;
                IntPtr hdc = GetDCEx(hWnd, hRgn, 1027);

                using (Graphics grfx = Graphics.FromHdc(hdc))
                {
                    Rectangle thicRect = new Rectangle(1, 1, this.Width - 3, this.Height - 3);
                    Rectangle thinRect = new Rectangle(0, 0, this.Width - 1, this.Height - 1);
                    Pen thickPen = new Pen(borderColor, 2F);
                    Pen thinPen = new Pen(Color.Black, 1F);
                    //grfx.DrawRectangle(pen, rect)
                    drawRoundRect(grfx, thickPen, thicRect, 3);
                    drawRoundRect(grfx, thinPen, thinRect, 3);

                }
            }

            base.OnPaint(e);
        }