// implementation
GtkWidget* GetGtkHandle() { return m_column; }
+ GtkWidget* GetConstGtkHandle() const { return m_column; }
private:
// holds the GTK handle
virtual wxDataViewColumn* GetColumn( unsigned int pos ) const;
virtual bool DeleteColumn( wxDataViewColumn *column );
virtual bool ClearColumns();
+ virtual int GetColumnPosition( const wxDataViewColumn *column ) const;
virtual wxDataViewColumn *GetSortingColumn() const;