window_update_focus
window_update_focus(c->session->curw->window);
window_update_focus(c->session->curw->window);
window_update_focus(old->curw->window);
window_update_focus(s->curw->window);
window_update_focus(old->window);
window_update_focus(wl->window);
void window_update_focus(struct window *);
window_update_focus(c->session->curw->window);
window_update_focus(c->session->curw->window);
window_update_focus(w);