Hide "Use Buffered I/O" button when switching to backend with no control

Which in this case means the JACK backend where the server is already running.

diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index 23c2a72396d8d42238b7b4fe9155066dea5ff0fe..762d1620d5aaeec55fb47db9fc3f07209a44d4e7 100644 (file)
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -880,6 +880,8 @@ EngineControl::update_sensitivity ()
        } else {
                update_devices_button.set_sensitive(false);
                update_devices_button.hide();
+               use_buffered_io_button.set_sensitive(false);
+               use_buffered_io_button.hide();
                start_stop_button.set_sensitive(false);
                start_stop_button.hide();
        }