protected virtual void DrawToolBarSeparator (Graphics dc, ToolBarItem item)
{
Rectangle area = item.Rectangle;
int offset = (int) SystemPens.Control.Width + 1;
dc.DrawLine (SystemPens.ControlDark, area.X + 1, area.Y, area.X + 1, area.Bottom);
dc.DrawLine (SystemPens.ControlLight, area.X + offset, area.Y, area.X + offset, area.Bottom);
}