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tetex-bin  3.0
lib_insdel.c
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00001 /****************************************************************************
00002  * Copyright (c) 1998-2001,2003 Free Software Foundation, Inc.              *
00003  *                                                                          *
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00005  * copy of this software and associated documentation files (the            *
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00011  *                                                                          *
00012  * The above copyright notice and this permission notice shall be included  *
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00014  *                                                                          *
00015  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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00022  *                                                                          *
00023  * Except as contained in this notice, the name(s) of the above copyright   *
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00028 
00029 /****************************************************************************
00030  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
00031  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
00032  ****************************************************************************/
00033 
00034 /*
00035 **     lib_insdel.c
00036 **
00037 **     The routine winsdelln(win, n).
00038 **  positive n insert n lines above current line
00039 **  negative n delete n lines starting from current line
00040 **
00041 */
00042 
00043 #include <curses.priv.h>
00044 
00045 MODULE_ID("$Id: lib_insdel.c,v 1.12 2003/07/26 22:40:06 tom Exp $")
00046 
00047 NCURSES_EXPORT(int)
00048 winsdelln(WINDOW *win, int n)
00049 {
00050     int code = ERR;
00051 
00052     T((T_CALLED("winsdelln(%p,%d)"), win, n));
00053 
00054     if (win) {
00055        if (n != 0) {
00056            _nc_scroll_window(win, -n, win->_cury, win->_maxy,
00057                            win->_nc_bkgd);
00058            _nc_synchook(win);
00059        }
00060        code = OK;
00061     }
00062     returnCode(code);
00063 }