On Thu, 2016-06-16 at 20:12 +0200, Stefan Salewski wrote: > I will see if I can find some C code for testing...
Well, looking at the C code of example10 is already enough: gtk+-3.20.1/examples/application10 exampleapp.c static void example_app_activate (GApplication *app) { ExampleAppWindow *win; win = example_app_window_new (EXAMPLE_APP (app)); gtk_window_present (GTK_WINDOW (win)); } static void example_app_open (GApplication *app, GFile **files, gint n_files, const gchar *hint) { GList *windows; ExampleAppWindow *win; int i; windows = gtk_application_get_windows (GTK_APPLICATION (app)); if (windows) win = EXAMPLE_APP_WINDOW (windows->data); else win = example_app_window_new (EXAMPLE_APP (app)); for (i = 0; i < n_files; i++) example_app_window_open (win, files[i]); gtk_window_present (GTK_WINDOW (win)); } static void example_app_class_init (ExampleAppClass *class) { G_APPLICATION_CLASS (class)->startup = example_app_startup; G_APPLICATION_CLASS (class)->activate = example_app_activate; G_APPLICATION_CLASS (class)->open = example_app_open; } So your observed behaviour seems to be intended. When application is started with arguments, example_app_open() is called, which includes the code of example_app_activate(). This indicates that example_app_activate() is not executed when application is started with arguments, so we can assume that "activate" signal is not emitted for that case. (That was not clear for me from the docs) For testing, you may download gtk+ tar file, which includes application10. Building only this one works with these commands cd application10 glib-compile-schemas . glib-compile-resources exampleapp.gresource.xml --target=resources.c --generate-source gcc -o main main.c resources.c exampleapp.c exampleappwin.c exampleappprefs.c `pkg-config --libs --cflags gtk+-3.0` A Nim version is also available, see https://github.com/ngtk3/nim-app http://forum.nim-lang.org/t/2198#13675 Unfortunately there seems to exist no Vala version yet. _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list