P>public class SelectButton : Button 
P>    {
P>        protected override void OnPaint(PaintEventArgs e) 
P>        {
P>            base.OnPaint(e);
P>            System.Windows.Forms.ControlPaint.DrawComboButton  (e.Graphics,0,0,this.Width,this.Height,state);
                        e.DrawString(...);
P>        }
P>    }
P>