- event_source.signal_button_press.connect(sigc::mem_fun(this, &Manipulator::button_press));
- event_source.signal_pointer_motion.connect(sigc::mem_fun(this, &Manipulator::pointer_motion));
+ mouse.signal_button_press.connect(sigc::bind_return(sigc::mem_fun(this, &Manipulator::button_press), false));
+ mouse.signal_axis_motion.connect(sigc::bind_return(sigc::mem_fun(this, &Manipulator::axis_motion), false));