-be called automatically when the window is resized. Use in connection with
-\helpref{wxWindow::SetSizer}{wxwindowsetsizer} and
-\helpref{wxWindow::SetConstraints}{wxwindowsetconstraints} for laying out
-subwindows.
+be called automatically when the window is resized. It is called implicitly by
+\helpref{wxWindow::SetSizer}{wxwindowsetsizer} but if you use
+\helpref{wxWindow::SetConstraints}{wxwindowsetconstraints} you should call it
+manually or otherwise the window layout won't be correctly updated when its
+size changes.