#include <sigslot.hpp>
Implemented in sigslot::signal_base< Lockable, T >, sigslot::signal_base< T... >, sigslot::signal_base< ga::KeyEvent & >, sigslot::signal_base< ga::MouseEvent & >, sigslot::signal_base< ga::TouchEvent & >, sigslot::signal_base< ga::Timeline * >, and sigslot::signal_base< ga::TouchZone::Event & >.