Also need to override Show

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40240 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/aui/auibook.cpp

@@ -809,6 +809,8 @@ public:
         *x = m_rect.width;
         *y = m_rect.height;
     }
+
+    bool Show( bool WXUNUSED(show = true) ) { return false; }
     
     void DoSizing()
     {