Added IsTopLevel() as a virtual function.

Added fontenum.hto filelist.txt,
  Changed window positioning code again,
  some more related things.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4372 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/frame.h

@@ -135,6 +135,8 @@ public:
     // Compatibility
     bool Iconized() const { return IsIconized(); }
 
+    virtual bool IsTopLevel() const { return TRUE; }
+    
     virtual void Maximize(bool maximize);
     //  virtual bool LoadAccelerators(const wxString& table);