DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
 
 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
 DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
 
     EVT_NOTEBOOK_PAGE_CHANGED(wxID_ANY, wxNotebook::OnSelChange)
     EVT_SIZE(wxNotebook::OnSize)
     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 END_EVENT_TABLE()
 
     EVT_NOTEBOOK_PAGE_CHANGED(wxID_ANY, wxNotebook::OnSelChange)
     EVT_SIZE(wxNotebook::OnSize)
     EVT_SET_FOCUS(wxNotebook::OnSetFocus)
     EVT_NAVIGATION_KEY(wxNotebook::OnNavigationKey)
 END_EVENT_TABLE()
 
 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 
 // ============================================================================
 IMPLEMENT_DYNAMIC_CLASS(wxNotebookEvent, wxNotifyEvent)
 
 // ============================================================================
         vEvent.SetSelection(nPage);
         vEvent.SetOldSelection(m_nSelection);
         vEvent.SetEventObject(this);
         vEvent.SetSelection(nPage);
         vEvent.SetOldSelection(m_nSelection);
         vEvent.SetEventObject(this);