+ // flags for DoSetSelection()
+ enum
+ {
+ SetSelection_SendEvent = 1
+ };
+
+ // choose the default border for this window
+ virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }
+
+ // set the selection to the given page, sending the events (which can
+ // possibly prevent the page change from taking place) if SendEvent flag is
+ // included
+ virtual int DoSetSelection(size_t nPage, int flags = 0);
+
+ // if the derived class uses DoSetSelection() for implementing
+ // [Set|Change]Selection, it must override UpdateSelectedPage(),
+ // CreatePageChangingEvent() and MakeChangedEvent(), but as it might not
+ // use it, these functions are not pure virtual
+
+ // called to notify the control about a new current page
+ virtual void UpdateSelectedPage(size_t WXUNUSED(newsel))
+ { wxFAIL_MSG(wxT("Override this function!")); }
+
+ // create a new "page changing" event
+ virtual wxBookCtrlEvent* CreatePageChangingEvent() const
+ { wxFAIL_MSG(wxT("Override this function!")); return NULL; }
+
+ // modify the event created by CreatePageChangingEvent() to "page changed"
+ // event, usually by just calling SetEventType() on it
+ virtual void MakeChangedEvent(wxBookCtrlEvent& WXUNUSED(event))
+ { wxFAIL_MSG(wxT("Override this function!")); }
+
+
+ // Should we accept NULL page pointers in Add/InsertPage()?
+ //
+ // Default is no but derived classes may override it if they can treat NULL
+ // pages in some sensible way (e.g. wxTreebook overrides this to allow
+ // having nodes without any associated page)
+ virtual bool AllowNullPage() const { return false; }
+