wxMenu *file_menu = new wxMenu;
file_menu->Append(VALIDATE_TEST_DIALOG, wxT("&Test"), wxT("Demonstrate validators"));
- file_menu->Append(VALIDATE_TOGGLE_BELL, wxT("&Bell on error"), wxT("Toggle bell on error"), true);
+ file_menu->AppendCheckItem(VALIDATE_TOGGLE_BELL, wxT("&Bell on error"), wxT("Toggle bell on error"));
file_menu->AppendSeparator();
file_menu->Append(wxID_EXIT, wxT("E&xit"));