have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we
skip the part which handles m_frameMenuBar, m_frameToolBar and (most
importantly) m_mainWidget */
have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we
skip the part which handles m_frameMenuBar, m_frameToolBar and (most
importantly) m_mainWidget */