Hi
everybody,
I
want to click on the image widget and get coors.
I
used following:
Gtk::Image
image;
image.signal_button_press_event().connect(sigc::mem_fun(*this,
&MainWindow::on_image2_button_press));
but it shows me error
message:
/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, MainWindow>, T_return = bool,
T_arg1 = GdkEventButton*]’:
/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, MainWindow>, T_return = bool,
T_arg1 = GdkEventButton*]’
/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, MainWindow>, T_return
= bool, T_arg1 = GdkEventButton*]’
/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, MainWindow>, T_return
= bool, T_arg1 = GdkEventButton*]’
MainWindow.cpp:198: 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 = GdkEventButton* const&, T_functor =
sigc::bound_mem_functor0<void, MainWindow>]’:
/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, MainWindow>, T_return = bool,
T_arg1 = GdkEventButton*]’
/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, MainWindow>, T_return = bool,
T_arg1 = GdkEventButton*]’
/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, MainWindow>, T_return
= bool, T_arg1 = GdkEventButton*]’
/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, MainWindow>, T_return
= bool, T_arg1 = GdkEventButton*]’
MainWindow.cpp:198: 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, MainWindow>)
(GdkEventButton* 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 = MainWindow]
/usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:84: error:
return-statement with a value, in function returning 'void'
can you help me with this problem?
regards
Petr Hracek
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