get_columns

Description:

public List<unowned TreeViewColumn> get_columns ()

Returns a `GList` of all the `GtkTreeViewColumn`s currently in this.

Note:

Use [class@Gtk.ListView] or [class@Gtk.ColumnView] instead

The returned list must be freed with g_list_free ().

Parameters:

this

A `GtkTreeView`

Returns:

A list of `GtkTreeViewColumn`s