-Tell the sizer to set (and \helpref{Fit}{wxsizerfit}) the minimal size of the \arg{window} to
-match the sizer's minimal size. This is commonly done in the constructor of the window itself,
-see sample in the description of \helpref{wxBoxSizer}{wxboxsizer} if the window is resizable
-(as are many dialogs under Unix and frames on probably all platforms).
+This method first calls \helpref{wxSizer::Fit}{wxsizerfit} and then
+\helpref{SetSizeHints}{wxtoplevelwindowsetsizehints} on the {\it window}
+passed to it. This only makes sense when {\it window} is actually a
+\helpref{wxTopLevelWindow}{wxtoplevelwindow} such as a wxFrame or a
+wxDialog, since SetSizeHints only has any effect in these classes.
+It does nothing in normal windows or controls.