if (nofb) { return 0; }
int fb_update_sent(int *count) {	static int last_count = 0;	int sent = 0, rc = 0;	rfbClientIteratorPtr i;	rfbClientPtr cl;	i = rfbGetClientIterator(screen);	while( (cl = rfbClientIteratorNext(i)) ) {		sent += cl->framebufferUpdateMessagesSent;	}	rfbReleaseClientIterator(i);	if (sent != last_count) {		rc = 1;	}	if (count != NULL) {		*count = sent;	}	last_count = sent;	return rc; }