Problem build GdkEventKey on gtkdfb

[Matteo Mazzini]

Hi to everybody,

i'm developing a gtkmm application on embedded system.
and i need to build a GdkEventKey to simulate a keyboard when i receive 
characters from a serial line.

Before all, to try build a GdkEventKey i had write a simple test program with a 
simple Gtk::Window, a callback for key press event, a callback where i build 
the event and put them into the event loop after a timeout.

Here the main:
========================================================
int main(int argc, char ** argv)
{
        LOGGER.debug("gtestMain");
        
        Gtk::Main _gtkMain(argc, argv);

        _testWin = new Gtk::Window();   
        
        Gdk::Event::set_show_events(true);


        
_testWin->signal_key_press_event().connect(sigc::ptr_fun(onKeyPressedEvent), 
false);
                
        Glib::signal_timeout().connect(sigc::ptr_fun(onTimeout), 5000);
                        
        LOGGER.info("Main before gtk event......");

        _testWin->set_title("Frame Example");
        _testWin->set_size_request(300, 200);
        _testWin->set_decorated(false);
        _testWin->set_has_frame(true);
        _testWin->set_position(Gtk::WIN_POS_CENTER_ALWAYS);

        _testWin->show();

        Glib::RefPtr<Gdk::Window> f_rptr = _testWin->get_frame();

        _gtkMain.run();                         

        return 0;
}



Here the callback where i build the event after timeout:
========================================================
bool onTimeout()
{

        LOGGER.debug("=====> Main::build fake GtkEventKey ====");

        GdkEvent* event = NULL;
        event = gdk_event_new(GDK_KEY_PRESS);
        LOGGER.debug("Main == key PRESSED event");

        event->key.send_event = 1;
        event->key.state = 0;
        event->key.length = 1;
        event->key.group = 0;
        event->key.time = time (NULL);

        event->key.keyval = 53;
        event->key.hardware_keycode = 14;
        event->key.string = gdk_keyval_name(53);

        Glib::RefPtr<Gdk::Window> f_rptr = _testWin->get_frame();       

        event->key.window = f_rptr->gobj();     
        
        Gdk::Event gdkev(event);
        gdkev.set_screen(_testWin->get_screen());       

        gdkev.put();
        
        return true;
}


Here the callback for key press:
========================================================

bool onKeyPressedEvent(GdkEventKey *event)
{
        
        LOGGER.debug("=====> Main::onKeyPressedEvent START <=========");
        
        LOGGER.debug(Format("Dump of event structure: type[%$] window[%$] send 
event[%$] time[%$] state[%$] keyval[%$] length[%$] string[%$] 
hardware_keycode[%$] group[%$]")
                                                                                
                  
        %event->type %ptrtoa(event->window) %event->send_event %event->time 
%event->state %event->keyval %event->length %event->string  
%event->hardware_keycode %event->group);

        LOGGER.debug("=====> Main::onKeyPressedEvent END <=========");

        return false;
}

 
The problem is that i tested this on xorg and on directfb, on xorg all go well, 
after i put the event into main event loop i can see on screen the 
onKeyPressedEvent callback log, instead on directfb after i put the event into 
the main event loop i never see the onKeyPressedEvent callback log.

Could anyone help me on what happen?

Thank you very much for your time and help.

Matteo



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