/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
/*	  All Rights Reserved  	*/

/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T	*/
/*	The copyright notice above does not evidence any   	*/
/*	actual or intended publication of such source code.	*/

#ident	"@(#)open.c	1.1	90/08/19 SMI"	/* SVr4.0 1.1	*/

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved. The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

/*
 * Copyright (c) 1983, 1984 1985, 1986, 1987, 1988, Sun Microsystems, Inc.
 * All Rights Reserved.
 */


#include <sgtty.h>
#include "hp2648.h"

int shakehands;
int currentx;
int currenty;
int buffcount;
int fildes;
float lowx;
float lowy;
float scalex;
float scaley;
struct sgttyb sarg;

openpl()
{
	if ( isatty(fileno( stdout )) ) {
		shakehands = TRUE;
		fildes = open(TERMINAL, 0);
		gtty(fildes, &sarg);
		sarg.sg_flags = sarg.sg_flags | RAW;
		stty(fildes, &sarg);
		sarg.sg_flags = sarg.sg_flags & ~RAW;
	}
	else {
		shakehands = FALSE;
	}
	buffcount = 0;
	currentx = 0;
	currenty = 0;
	buffready(8);
	putchar(ESC);
	putchar(GRAPHIC);
	putchar(DISPLAY);
	putchar('c');
	putchar(ESC);
	putchar(GRAPHIC);
	putchar(PLOT);
	putchar(BINARY);
	space(0,0,720,360);
}