Hello I don't understand how GtkApplication and GApplication should be used.
I actually am not sure to understand why is GtkApplication really useful. I believe it is using DBus to communicate with the session manager, possibly to permit that only one instance is running. But I don't understand the details In particular, I don't understand why GtkApplication don't offer the simplicity of initializing itself with program argument processing like gtk_init_with_args do. Apparently, to initialize such an application, one have to call gtk_application_new with G_APPLICATION_HANDLES_COMMAND_LINE and define a handler for the "command-line" signal. I am not sure to understand why both "activate" and "startup" signal exist for GtkApplications. In fact, I don't understand why they are both needed. My code looks like my_appl = gtk_application_new ("my.program", G_APPLICATION_HANDLES_COMMAND_LINE); g_signal_connect (my_appl, "command-line", G_CALLBACK (my_command_line), NULL); g_signal_connect (my_appl, "activate", G_CALLBACK (my_activate), NULL); g_signal_connect (my_appl, "startup", G_CALLBACK (my_startup), NULL); if (g_application_register (G_APPLICATION (my_appl), NULL, &err)) { g_debug ("application registered"); } else g_error ("failed to register application %s", err->message); g_debug ("before activation"); g_application_activate (G_APPLICATION (my_appl)); g_debug ("before run"); status = g_application_run (G_APPLICATION (my_appl), argc, argv); But I notice that my_startup is called before end of registration, but my_command_line is called only from g_application_run. So my_activate & my_startup routines cannot take into account any program arguments processed by my_command_line! I am probably doing something wrong. But what? I also find very few examples of GtkApplication code. Do you know some? Regards. -- Basile STARYNKEVITCH http://starynkevitch.net/Basile/ email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359 8, rue de la Faiencerie, 92340 Bourg La Reine, France *** opinions {are only mine, sont seulement les miennes} *** _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list