GtkTreeSortable
@g_iface:
@sort_column_changed:
@get_sort_column_id:
@set_sort_column_id:
@set_sort_func:
@set_default_sort_func:
@has_default_sort_func:
@model:
@a:
@b:
@user_data:
@Returns:
@sortable:
@sortable:
@sort_column_id:
@order:
@Returns:
@sortable:
@sort_column_id:
@order:
@sortable:
@sort_column_id:
@sort_func:
@user_data:
@destroy:
@sortable:
@sort_func:
@user_data:
@destroy:
@sortable:
@Returns:
@treesortable: the object which received the signal.