@li If that search failed too, wxWidgets finds 'loose' standard buttons (in any kind of sizer)
and adds them to a wxStdDialogButtonSizer.
If no standard buttons were found, the whole dialog content will scroll.
-@li All the children apart from standard buttons are reparented onto a new wxScrolledWindow
+@li All the children apart from standard buttons are reparented onto a new ::wxScrolledWindow
object, using the old top-level sizer for the scrolled window and creating a new top-level
sizer to lay out the scrolled window and standard button sizer.