- GtkActionClass *action_class = GTK_ACTION_CLASS (class);
- PsppireDialogActionClass *pdac = PSPPIRE_DIALOG_ACTION_CLASS (class);
-
- action_class->activate = psppire_dialog_action_sort_activate;
+ PsppireDialogActionClass *pdac = PSPPIRE_DIALOG_ACTION_CLASS (class);
+ psppire_dialog_action_set_activation (class, psppire_dialog_action_sort_activate);