1/*
2 * Copyright 2001 Sun Microsystems, Inc.  All rights reserved.
3 * Use is subject to license terms.
4 */
5
6/*	Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T	*/
7/*	  All Rights Reserved  	*/
8
9/*
10 * Copyright (c) 1980 Regents of the University of California.
11 * All rights reserved.  The Berkeley software License Agreement
12 * specifies the terms and conditions for redistribution.
13 */
14
15#pragma ident	"%Z%%M%	%I%	%E% SMI"
16
17/*LINTLIBRARY*/
18
19#ifndef lint
20static char
21sccsid[] = "@(#)scroll.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
22#endif /* not lint */
23
24#include	"curses.ext"
25
26/*
27 *	This routine scrolls the window up a line.
28 */
29
30int
31scroll(WINDOW *win)
32{
33	int	oy, ox;
34
35#ifdef DEBUG
36	fprintf(outf, "SCROLL(%0.2o)\n", win);
37#endif
38
39	if (!win->_scroll)
40		return (ERR);
41
42	getyx(win, oy, ox);
43	(void) wmove(win, 0, 0);
44	(void) wdeleteln(win);
45	(void) wmove(win, oy, ox);
46
47	if (win == curscr) {
48		(void) _putchar('\n');
49		if (!NONL)
50			win->_curx = 0;
51#ifdef DEBUG
52		fprintf(outf, "SCROLL: win == curscr\n");
53#endif
54	}
55
56	return (OK);
57}
58