namespace System.Windows.Controls.Ribbon
{
    [TemplatePart(Name = "PART_ToggleButton", Type = typeof(RibbonToggleButton))]
    [TemplatePart(Name = "PART_Header", Type = typeof(ContentPresenter))]
    [TemplatePart(Name = "PART_HotBackground", Type = typeof(Border))]
    [TemplatePart(Name = "ItemsPresenter", Type = typeof(ItemsPresenter))]
    [TemplatePart(Name = "PART_PopupGrid", Type = typeof(Grid))]
    [TemplatePart(Name = "PART_Popup", Type = typeof(Popup))]
    [TemplatePart(Name = "PART_TemplateContentControl", Type = typeof(ContentControl))]
    public class RibbonGroup : HeaderedItemsControl
    {
        protected internal override void OnRenderSizeChanged(SizeChangedInfo info);
    }
}