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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><!-- **************************************************************************** * Copyright (c) 1998,2001,2005 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. * **************************************************************************** * @Id: curs_instr.3x,v 1.12 2005/05/15 17:48:23 tom Exp @--><HTML><HEAD><TITLE>curs_instr 3x</TITLE><link rev=made href="mailto:bug-ncurses@gnu.org"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></HEAD><BODY><H1>curs_instr 3x</H1><HR><PRE><!-- Manpage converted by man2html 3.0.1 --><STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG> <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG></PRE><H2>NAME</H2><PRE> <STRONG>instr</STRONG>, <STRONG>innstr</STRONG>, <STRONG>winstr</STRONG>, <STRONG>winnstr</STRONG>, <STRONG>mvinstr</STRONG>, <STRONG>mvinnstr</STRONG>, <STRONG>mvwin-</STRONG> <STRONG>str</STRONG>, <STRONG>mvwinnstr</STRONG> - get a string of characters from a <STRONG>curses</STRONG> window</PRE><H2>SYNOPSIS</H2><PRE> <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> <STRONG>int</STRONG> <STRONG>instr(char</STRONG> <STRONG>*str);</STRONG> <STRONG>int</STRONG> <STRONG>innstr(char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG> <STRONG>int</STRONG> <STRONG>winstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG> <STRONG>int</STRONG> <STRONG>winnstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG> <STRONG>int</STRONG> <STRONG>mvinstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG> <STRONG>int</STRONG> <STRONG>mvinnstr(int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG> <STRONG>int</STRONG> <STRONG>mvwinstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str);</STRONG> <STRONG>int</STRONG> <STRONG>mvwinnstr(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>char</STRONG> <STRONG>*str,</STRONG> <STRONG>int</STRONG> <STRONG>n);</STRONG></PRE><H2>DESCRIPTION</H2><PRE> These routines return a string of characters in <EM>str</EM>, extracted starting at the current cursor position in the named window. Attributes are stripped from the charac- ters. The four functions with <EM>n</EM> as the last argument return a leading substring at most <EM>n</EM> characters long (exclusive of the trailing NUL).</PRE><H2>RETURN VALUE</H2><PRE> All of the functions return <STRONG>ERR</STRONG> upon failure, or the num- ber of characters actually read into the string. X/Open defines no error conditions. In this implementa- tion, if the window parameter is null or the str parameter is null, a zero is returned.</PRE><H2>NOTES</H2><PRE> Note that all routines except <STRONG>winnstr</STRONG> may be macros.</PRE><H2>PORTABILITY</H2><PRE> SVr4 does not document whether a length limit includes or excludes the trailing NUL. The ncurses library extends the XSI description by allow- ing a negative value for <EM>n</EM>. In this case, the functions return the string ending at the right margin.</PRE><H2>SEE ALSO</H2><PRE> <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>. <STRONG><A HREF="curs_instr.3x.html">curs_instr(3x)</A></STRONG></PRE><HR><ADDRESS>Man(1) output converted with<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a></ADDRESS></BODY></HTML>⌨️ 快捷键说明
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