#include static void activate (GtkApplication *app, gpointer user_data) { GtkWidget *window; window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_window_set_application (GTK_WINDOW (window), GTK_APPLICATION (app)); gtk_window_set_title (GTK_WINDOW (window), "Hello GNOME"); gtk_widget_show_all (GTK_WIDGET (window)); } int main (int argc, char **argv) { GtkApplication *app; int status; app = gtk_application_new ("org.gtk.example",G_APPLICATION_FLAGS_NONE); g_signal_connect (app, "activate", G_CALLBACK (activate), NULL); status = g_application_run (G_APPLICATION (app), argc, argv); g_object_unref (app); return status; }