RecentFilter.this

Creates a new #GtkRecentFilter with no rules added to it. Such filter does not accept any recently used resources, so is not particularly useful until you add rules with gtk.recent_filter.RecentFilter.addPattern, gtk.recent_filter.RecentFilter.addMimeType, gtk.recent_filter.RecentFilter.addApplication, gtk.recent_filter.RecentFilter.addAge. To create a filter that accepts any recently used resource, use:

GtkRecentFilter *filter = gtk_recent_filter_new ();
gtk_recent_filter_add_pattern (filter, "*");