complete testcase:
#include <iostream>
#include <gtkmm.h>


class MyWindow : public Gtk::Window
{
public:
//        virtual bool on_configure_event(GdkEventConfigure *event)
//        {
//                std::cout << "Inherited Configure" << std::endl;
//                return false;
//        }
};



bool on_configure(GdkEventConfigure *arg)
{
        std::cout << "Got Configure" << std::endl;
        return false;
}

// main
int main(int argc, char *argv[])
{
        Gtk::Main kit(argc, argv);

        MyWindow window;

        window.signal_configure_event().connect(sigc::ptr_fun(&on_configure));

        Gtk::Main::run(window);

        return 0;
}

Please try connect(slot, false) or connect_notify().

Please reopen this bug if it is still a problem.

It works with connect_notify in the test case above, but not with connect (slot,
false) statement.