+G_GNUC_INTERNAL gboolean pager_after_expose_event(GtkTextView *textview, GdkEventExpose *event, winid_t win);
+G_GNUC_INTERNAL void pager_after_size_request(GtkTextView *textview, GtkRequisition *requisition, winid_t win);
+G_GNUC_INTERNAL void pager_update(winid_t win);