int	win[] = {0X0405, 0X0207,
					200, 150, 200, 60};

char	msg[] = {"Hello world!"};

long	src1[10],
		ret[8],
		src2[10] = {7, 0, 12, -1, -1};	/* IO.SSTRG */
		
main() {
	char	str[20];
	int	err;
	src1[5] = _makeabs(win);
	err = vutil(src1, ret, 0XC6, 0);			/* UT.WINDW */
	printf("Error = %d\n", err);
	gets(str);
	src2[4] = ret[4];						/* Channel ID */
	src2[5] = _makeabs(msg);			/* Start of message */
	err = trap3(src2, ret);
	printf("Error = %d\n", err);
	gets(str);
	}