internal TaskbarButtonThumbnails(IWin32Window parent)
{
this.parent = parent;
Toolbar = new ThumbnailToolbar();
Toolbar.PropertyChanged += (s, e) => ResetToolbar();
base.CollectionChanged += LocalCollectionChanged;
}
internal ThumbnailToolbarButtonCollection(ThumbnailToolbar parent)
{
Parent = parent;
CollectionChanged += OnCollectionChanged;
}
