void wxFrame::Init()
{
+#if wxUSE_MENUS
+ m_hMenu = NULL;
+#endif // wxUSE_MENUS
+
#if wxUSE_TOOLTIPS
m_hwndToolTip = 0;
#endif
wxFrame *frame = wxDynamicCast(win, wxFrame);
if ( frame
#if wxUSE_MDI_ARCHITECTURE
- && !wxDynamicCast(frame, wxMDIChildFrame)
+ && !IsMDIChild()
#endif // wxUSE_MDI_ARCHITECTURE
)
{