System.Drawing.Brush.Setup C# (CSharp) Method

        internal abstract void Setup(Graphics graphics, bool fill);

 public void FillEllipse(Brush brush, RectangleF rect)
 {
     if (brush == null)
     {
         throw new ArgumentNullException("brush");
     }
     brush.Setup(this, true);
     context.FillEllipseInRect(rect);
 }