CustomSorter.setSortFunc
void setSortFunc(CustomSortDelegate sortFunc)Sets (or unsets) the function used for sorting items. If sort_func is %NULL, all items are considered equal. If the sort func changes its sorting behavior, [Gtk.Sorter.changed] needs to be called. If a previous function was set, its user_destroy will be called now.
Parameters
sortFunc | function to sort items |