/**************************************************************************** * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   * *                                                                          * * Permission is hereby granted, free of charge, to any person obtaining a  * * copy of this software and associated documentation files (the            * * "Software"), to deal in the Software without restriction, including      * * without limitation the rights to use, copy, modify, merge, publish,      * * distribute, distribute with modifications, sublicense, and/or sell       * * copies of the Software, and to permit persons to whom the Software is    * * furnished to do so, subject to the following conditions:                 * *                                                                          * * The above copyright notice and this permission notice shall be included  * * in all copies or substantial portions of the Software.                   * *                                                                          * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    * * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               * *                                                                          * * Except as contained in this notice, the name(s) of the above copyright   * * holders shall not be used in advertising or otherwise to promote the     * * sale, use or other dealings in this Software without prior written       * * authorization.                                                           * ****************************************************************************//**************************************************************************** *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               * *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         * ****************************************************************************//***	lib_touch.c****	   The routines	untouchwin(),**			wtouchln(),**			is_linetouched()**			is_wintouched().***/#include <curses.priv.h>MODULE_ID("$Id: lib_touch.c,v 1.9 2000/12/10 02:43:27 tom Exp $")NCURSES_EXPORT(bool)is_linetouched(WINDOW *win, int line){    T((T_CALLED("is_linetouched(%p,%d)"), win, line));    /* XSI doesn't define any error */    if (!win || (line > win->_maxy) || (line < 0))	returnCode((bool) ERR);    returnCode(win->_line[line].firstchar != _NOCHANGE ? TRUE : FALSE);}NCURSES_EXPORT(bool)is_wintouched(WINDOW *win){    int i;    T((T_CALLED("is_wintouched(%p)"), win));    if (win)	for (i = 0; i <= win->_maxy; i++)	    if (win->_line[i].firstchar != _NOCHANGE)		returnCode(TRUE);    returnCode(FALSE);}NCURSES_EXPORT(int)wtouchln(WINDOW *win, int y, int n, int changed){    int i;    T((T_CALLED("wtouchln(%p,%d,%d,%d)"), win, y, n, changed));    if (!win || (n < 0) || (y < 0) || (y > win->_maxy))	returnCode(ERR);    for (i = y; i < y + n; i++) {	if (i > win->_maxy)	    break;	win->_line[i].firstchar = changed ? 0 : _NOCHANGE;	win->_line[i].lastchar = changed ? win->_maxx : _NOCHANGE;    }    returnCode(OK);}