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/dialog.h

@@ -77,6 +77,8 @@ public:
     virtual bool IsIconized() const;
     void Fit();
 
+    virtual bool IsTopLevel() const { return TRUE; }
+    
     void SetTitle(const wxString& title);
     wxString GetTitle() const ;