xref: /freebsd-11-stable/contrib/ncurses/ncurses/base/lib_scrreg.c

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/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/

/*
**	lib_scrreg.c
**
**	The routine wsetscrreg().
**
*/

#include <curses.priv.h>

MODULE_ID("$Id: lib_scrreg.c,v 1.11 2009/10/24 22:35:28 tom Exp $")

NCURSES_EXPORT(int)
wsetscrreg(WINDOW *win, int top, int bottom)
{
    T((T_CALLED("wsetscrreg(%p,%d,%d)"), (void *) win, top, bottom));

    if (win &&
	top >= 0 && top <= win->_maxy &&
	bottom >= 0 && bottom <= win->_maxy &&
	bottom > top) {
	win->_regtop = (NCURSES_SIZE_T) top;
	win->_regbottom = (NCURSES_SIZE_T) bottom;

	returnCode(OK);
    } else
	returnCode(ERR);
}