I'm currently trying to figure out how to query if any other handler are connected. I didn't connect any, so I'm not sure what to do. I'm looking at http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#g-signal-handlers-disconnect-matched for help, but if anybody has any tips that would be great, as I might do it wrong and it might take me a while.
-Patrick On Thu, Aug 20, 2009 at 9:48 PM, Yu Feng<rainwood...@gmail.com> wrote: > The default signal handler is not invoked if any of the customized > signal handler returns TRUE or something. > Check if there are any handlers connected to this signal later on that > returns TRUE. > > Yu > > ----- > gboolean user_function (GtkWidget *widget, > GdkEvent *event, > gpointer user_data) > : Run Last > The GTK+ main loop will emit three signals for each GDK event delivered to a > widget: one generic > ::event signal, another, more specific, signal that matches the type of event > delivered (e.g. "key-press-event") > and finally a generic "event-after" signal. > > widget : > > the object which received the signal. > event : > > the GdkEvent which triggered this signal > user_data : > > user data set when the signal handler was connected. > Returns : > > TRUE to stop other handlers from being invoked for the event and to cancel the > emission of the second specific ::event signal. FALSE to propagate the event > further > and to allow the emission of the second signal. > The ::event-after signal is emitted regardless of the return value. > > On Thu, 2009-08-20 at 21:04 -0400, Patrick M. Rutkowski wrote: >> Incorrect, >> >> The ISO C standard defines the & operator on a function name to be >> optional when taking asking for a function pointer, I just use it as a >> habit of style. >> >> Here's a demonstration of this effect: >> http://www.rutski89.com/static/funcptr.txt >> >> I still need help with the ->event GTK problem. >> >> -Patrick >> >> On Thu, Aug 20, 2009 at 8:50 PM, Brian J. Tarricone<bj...@cornell.edu> wrote: >> > On 08/20/2009 05:36 PM, Patrick M. Rutkowski wrote: >> >> I've got the following code: http://www.rutski89.com/static/gtkevent.cpp >> >> >> >> I do indeed do this: >> >> >> >> widget_class->event = &any_event_r >> >> >> >> but then any_event_r() never subsequently get's called, and I'm >> >> certain that the "widget_class->event = &any_event_r" line really does >> >> execute. >> >> >> >> Any suggestions? >> > >> > You're setting ->event to a pointer to a pointer to a function when all >> > it wants is a pointer to a function. >> > >> > -brian >> > _______________________________________________ >> > gtk-app-devel-list mailing list >> > gtk-app-devel-list@gnome.org >> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list >> > >> _______________________________________________ >> gtk-app-devel-list mailing list >> gtk-app-devel-list@gnome.org >> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > > _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
