gtk:column-view-column-sorter (object)

object -- a gtk:column-view-column object
sorter -- a gtk:sorter object

Accessor of the sorter slot of the gtk:column-view-column class. The gtk:column-view-column-sorter function returns the sorter that is associated with the column. The (setf gtk:column-view-column-sorter) function associates a sorter with the column. If sorter is nil, the column will not let users change the sorting by clicking on its header. This sorter can be made active by clicking on the column header, or by calling the gtk:column-view-sort-by-column function.

See the gtk:column-view-sorter function for the necessary steps for setting up customizable sorting for the column view.