TreeView.getColumns
gtk.tree_view_column.TreeViewColumn[] getColumns()Returns a [glib.list.List] of all the [gtk.tree_view_column.TreeViewColumn]s currently in tree_view. The returned list must be freed with g_list_free ().
Returns
A list of [gtk.tree_view_column.TreeViewColumn]s
Deprecated
Use [gtk.list_view.ListView] or [gtk.column_view.ColumnView] instead