Block all events in wxSpinCtrl::SetValue etc.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47289 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/spinctrl.h

@@ -55,8 +55,8 @@ public:
     // implementation
     void OnChar( wxKeyEvent &event );
     
-    void GtkDisableEvents();
-    void GtkEnableEvents();
+    void GtkDisableEvents() const;
+    void GtkEnableEvents() const;
 
     int m_pos;