+ /**
+ Get the default size for a new top level window.
+
+ This is used internally by wxWidgets on some platforms to determine the
+ default size for a window created using ::wxDefaultSize so it is not
+ necessary to use it when creating a wxTopLevelWindow, however it may be
+ useful if a rough estimation of the window size is needed for some
+ other reason.
+
+ @since 2.9.2
+ */
+ static wxSize GetDefaultSize();
+