ScreenToGif.Modern.OnPaint C# (CSharp) Method

        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);

            //Creates a border around the form
            Graphics g = e.Graphics;
            var rectOutside = new Rectangle(new Point(0, 0), new Size(this.Width - 1, this.Height - 1));
            var rectInside = new Rectangle(new Point(panelTransparent.Left - 1, panelTransparent.Top - 1), new Size(panelTransparent.Width + 1, panelTransparent.Height + 1));

            Pen pen;

            if (_stage == Stage.Recording)
            {
                pen = new Pen(Color.FromArgb(255, 25, 0));
            }
            else if (_stage == Stage.Editing)
            {
                pen = new Pen(Color.FromArgb(30, 180, 30));
            }
            else
            {
                pen = new Pen(Color.FromArgb(0, 151, 251));
            }

            g.DrawRectangle(pen, rectOutside);
            g.DrawRectangle(pen, rectInside);

            //Create a round border, not so beautiful
            //System.IntPtr ptrBorder = CreateRoundRectRgn(0, 0,
            //this.ClientSize.Width, this.ClientSize.Height, 15, 15);
            //SetWindowRgn(this.Handle, ptrBorder, true);

            //Create a rectangle around the form, to make a hit test
            Rectangle rc = new Rectangle(this.ClientSize.Width - cGrip,
                this.ClientSize.Height - cGrip, cGrip, cGrip);

            //Paints the size grip
            //ControlPaint.DrawSizeGrip(e.Graphics, this.BackColor, rc);

        }