Mark Roberts wrote: > Dear pch0317, > >> Hi list >> I have problem. I can't find which signal is related to emit when I move >> cursor above widget. > >> I use: >> widget.signal_button_press_event().connect(sigc::mem_fun(*this, >> &Something1)); when I want to use Something1 function when i click on >> widget and > >> widget.signal_button_release_event().connect(sigc::mem_fun(*this, >> &Something2)); when I want to use Something2 function when I release >> mouse button. > >> How I must type to use Something3 when I move cursor above widget. > > For when mouse pointer moves from outside the widget to inside, use > signal_enter_notify_event(). For when it moves back outside, use > signal_leave_notify_event(). In order to catch any mouse movement > within your widget, use signal_motion_notify_event(). > > Remember that your users might not all be using a mouse. In > particular, lots of people use the keyboard to navigate dialogs. > > I hope you are all having good weather (though I know it is unlikely). > Mark > Thank Mark I choose signal_motion_notify_event() but when I compile my program ... eBox.set_events(Gdk::ALL_EVENTS_MASK); eBox.signal_motion_notify_event().connect(sigc::mem_fun(*this, &Interfejs::about));
... the error occur: /usr/include/sigc++-2.0/sigc++/functors/slot.h: In static member function ‘static T_return sigc::internal::slot_call1<T_functor, T_return, T_arg1>::call_it(sigc::internal::slot_rep*, typename sigc::type_trait<T_arg3>::take) [with T_functor = sigc::bound_mem_functor0<void, Interfejs>, T_return = bool, T_arg1 = GdkEventMotion*]’: /usr/include/sigc++-2.0/sigc++/functors/slot.h:144: instantiated from ‘static void* (* sigc::internal::slot_call1<T_functor, T_return, T_arg1>::address())(void*) [with T_functor = sigc::bound_mem_functor0<void, Interfejs>, T_return = bool, T_arg1 = GdkEventMotion*]’ /usr/include/sigc++-2.0/sigc++/functors/slot.h:529: instantiated from ‘sigc::slot1<T_return, T_arg1>::slot1(const T_functor&) [with T_functor = sigc::bound_mem_functor0<void, Interfejs>, T_return = bool, T_arg1 = GdkEventMotion*]’ /usr/include/sigc++-2.0/sigc++/functors/slot.h:1157: instantiated from ‘sigc::slot<T_return, T_arg1, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::slot(const T_functor&) [with T_functor = sigc::bound_mem_functor0<void, Interfejs>, T_return = bool, T_arg1 = GdkEventMotion*]’ interface.cpp:163: instantiated from here /usr/include/sigc++-2.0/sigc++/functors/slot.h:137: error: void value not ignored as it ought to be /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h: In member function ‘typename sigc::adaptor_functor<T_functor>::deduce_result_type<T_arg1, void, void, void, void, void, void>::type sigc::adaptor_functor<T_functor>::operator()(T_arg1) const [with T_arg1 = GdkEventMotion* const&, T_functor = sigc::bound_mem_functor0<void, Interfejs>]’: /usr/include/sigc++-2.0/sigc++/functors/slot.h:137: instantiated from ‘static T_return sigc::internal::slot_call1<T_functor, T_return, T_arg1>::call_it(sigc::internal::slot_rep*, typename sigc::type_trait<T_arg3>::take) [with T_functor = sigc::bound_mem_functor0<void, Interfejs>, T_return = bool, T_arg1 = GdkEventMotion*]’ /usr/include/sigc++-2.0/sigc++/functors/slot.h:144: instantiated from ‘static void* (* sigc::internal::slot_call1<T_functor, T_return, T_arg1>::address())(void*) [with T_functor = sigc::bound_mem_functor0<void, Interfejs>, T_return = bool, T_arg1 = GdkEventMotion*]’ /usr/include/sigc++-2.0/sigc++/functors/slot.h:529: instantiated from ‘sigc::slot1<T_return, T_arg1>::slot1(const T_functor&) [with T_functor = sigc::bound_mem_functor0<void, Interfejs>, T_return = bool, T_arg1 = GdkEventMotion*]’ /usr/include/sigc++-2.0/sigc++/functors/slot.h:1157: instantiated from ‘sigc::slot<T_return, T_arg1, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil, sigc::nil>::slot(const T_functor&) [with T_functor = sigc::bound_mem_functor0<void, Interfejs>, T_return = bool, T_arg1 = GdkEventMotion*]’ interface.cpp:163: instantiated from here /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:84: error: no match for call to ‘(sigc::bound_mem_functor0<void, Interfejs>) (GdkEventMotion* const&)’ /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1786: note: candidates are: T_return sigc::bound_mem_functor0<T_return, T_obj>::operator()() const [with T_return = void, T_obj = Interfejs] /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:84: error: return-statement with a value, in function returning 'void' What am I doing wrong? _______________________________________________ gtkmm-list mailing list gtkmm-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtkmm-list