cannot use wxSizer directly; instead, you will have to use one of the sizer
classes derived from it. Currently there are \helpref{wxBoxSizer}{wxboxsizer},
\helpref{wxStaticBoxSizer}{wxstaticboxsizer},
-\helpref{wxGridSizer}{wxgridsizer}
-\helpref{wxFlexGridSizer}{wxflexgridsizer} and \helpref{wxGridBagSizer}{wxgridbagsizer}.
+\helpref{wxGridSizer}{wxgridsizer},
+\helpref{wxFlexGridSizer}{wxflexgridsizer},
+\helpref{wxWrapSizer}{wxwrapsizer}
+ and \helpref{wxGridBagSizer}{wxgridbagsizer}.
The layout algorithm used by sizers in wxWidgets is closely related to layout
in other GUI toolkits, such as Java's AWT, the GTK toolkit or the Qt toolkit. It is