namespace System.Windows.Forms
{
    [DefaultEvent("ButtonClick")]
    [ToolStripItemDesignerAvailability(ToolStripItemDesignerAvailability.ToolStrip | ToolStripItemDesignerAvailability.StatusStrip)]
    public class ToolStripSplitButton : ToolStripDropDownItem
    {
        protected virtual void OnDefaultItemChanged(EventArgs e);
    }
}