+ wxMenuBar *menubar = NULL;
+
+ const int style = GetStyle();
+ wxASSERT_MSG(!style || !m_instance,
+ "cannot use <style> with pre-created menubar");
+
+ if ( m_instance )
+ menubar = wxDynamicCast(m_instance, wxMenuBar);
+ if ( !menubar )
+ menubar = new wxMenuBar(style);
+