\twocolitem{\helpref{wxGridBagSizer}{wxgridbagsizer}}{Another grid sizer that lets you specify the cell an item is in, and items can span rows and/or columns.}
\twocolitem{\helpref{wxBoxSizer}{wxboxsizer}}{A sizer for laying out windows in a row or column}
\twocolitem{\helpref{wxStaticBoxSizer}{wxstaticboxsizer}}{Same as wxBoxSizer, but with a surrounding static box}
+\twocolitem{\helpref{wxWrapSizer}{wxwrapsizer}}{A sizer which wraps its child controls as size permits}
\end{twocollist}
\overview{Constraints overview}{constraintsoverview} describes constraints-based layout.
\twocolitem{\helpref{wxHashSet<T>}{wxhashset}}{A type-safe hash set implementation(macro based)}
\twocolitem{\helpref{wxHashTable}{wxhashtable}}{A simple hash table implementation (deprecated, use wxHashMap)}
\twocolitem{\helpref{wxList<T>}{wxlist}}{A type-safe linked list implementation (macro based)}
-\twocolitem{\helpref{wxVector<T>}{wxvector}}{Template base vector implementation}
+\twocolitem{\helpref{wxVector<T>}{wxvector}}{Template base vector implementation identical to std::vector}
+\end{twocollist}
+
+{\large {\bf Smart pointers}}
+
+wxWidgets provides a few smart pointer class templates.
+
+\twocolwidtha{6cm}
+\begin{twocollist}\itemsep=0pt
+\twocolitem{\helpref{wxObjectDataPtr<T>}{wxobjectdataptr}}{A shared pointer (using intrusive reference counting)}
+\twocolitem{\helpref{wxScopedPtr<T>}{wxscopedptrtemplate}}{A scoped pointer}
+\twocolitem{\helpref{wxSharedPtr<T>}{wxsharedptr}}{A shared pointer (using non-intrusive reference counting)}
+\twocolitem{\helpref{wxWeakRef<T>}{wxweakref}}{A weak reference}
\end{twocollist}
{\large {\bf Run-time class information system}}