diff --git a/include/wx/mac/carbon/glcanvas.h b/include/wx/mac/carbon/glcanvas.h
index 6f044609c3..135ef4c71b 100644
--- a/include/wx/mac/carbon/glcanvas.h
+++ b/include/wx/mac/carbon/glcanvas.h
@@ -118,7 +118,7 @@ class WXDLLEXPORT wxGLCanvas: public wxWindow
    
      virtual void MacSuperChangedPosition() ;
      virtual void MacTopLevelWindowChangedPosition() ;
-     virtual void MacSuperShown( bool show ) ;
+    virtual void         MacVisibilityChanged() ;
 
      void MacUpdateView() ;
 
diff --git a/include/wx/mac/carbon/toplevel.h b/include/wx/mac/carbon/toplevel.h
index 3f3bdcb540..9eef94c683 100644
--- a/include/wx/mac/carbon/toplevel.h
+++ b/include/wx/mac/carbon/toplevel.h
@@ -92,6 +92,7 @@ public:
     virtual void MacSetBackgroundBrush( const wxBrush &brush ) ;
 
     bool MacUsesCompositing() { return m_macUsesCompositing; } 
+    virtual void MacInstallTopLevelWindowEventHandler() ;
 
     void MacSetMetalAppearance( bool on ) ;