Add wxDataViewCtrl::GetCurrentColumn().

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70375 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/osx/dataview.h

@@ -256,6 +256,8 @@ public:
     m_Deleting = deleting;
   }
 
+  virtual wxDataViewColumn *GetCurrentColumn() const;
+
   virtual wxVisualAttributes GetDefaultAttributes() const
   {
       return GetClassDefaultAttributes(GetWindowVariant());