namespace System.Windows
{
    [RuntimeNameProperty("Name")]
    [StyleTypedProperty(Property = "FocusVisualStyle", StyleTargetType = typeof(Control))]
    [UsableDuringInitialization(true)]
    [XmlLangProperty("Language")]
    public class FrameworkContentElement : ContentElement, ISupportInitialize, IFrameworkInputElement, IInputElement, IQueryAmbient
    {
        protected internal void AddLogicalChild(object child);
    }
}