server_client_set_overlay
server_client_set_overlay(tc, delay, NULL, NULL,
server_client_set_overlay(tc, delay, NULL, NULL,
server_client_set_overlay(c, 0, NULL, menu_mode_cb, menu_draw_cb,
server_client_set_overlay(c, 0, popup_check_cb, popup_mode_cb,
void server_client_set_overlay(struct client *, u_int, overlay_check_cb,