\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.