CSPspEmu.Gui.Winforms.Winforms.GLControl.OnPaintBackground C# (CSharp) Метод

        protected override void OnPaintBackground(PaintEventArgs e)
        {
            if (DesignMode)
            {
                e.Graphics.FillRectangle(new SolidBrush(Color.BlueViolet), e.ClipRectangle);
            }
        }