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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><!-- **************************************************************************** * Copyright (c) 1998-2003,2005 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_inopts.3x,v 1.13 2005/05/15 16:18:07 tom Exp @--><HTML><HEAD><TITLE>curs_inopts 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_inopts 3x</H1><HR><PRE><!-- Manpage converted by man2html 3.0.1 --><STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG> <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG></PRE><H2>NAME</H2><PRE> <STRONG>cbreak</STRONG>, <STRONG>nocbreak</STRONG>, <STRONG>echo</STRONG>, <STRONG>noecho</STRONG>, <STRONG>halfdelay</STRONG>, <STRONG>intrflush</STRONG>, <STRONG>keypad</STRONG>, <STRONG>meta</STRONG>, <STRONG>nodelay</STRONG>, <STRONG>notimeout</STRONG>, <STRONG>raw</STRONG>, <STRONG>noraw</STRONG>, <STRONG>noqiflush</STRONG>, <STRONG>qiflush</STRONG>, <STRONG>timeout</STRONG>, <STRONG>wtimeout</STRONG>, <STRONG>typeahead</STRONG> - <STRONG>curses</STRONG> input options</PRE><H2>SYNOPSIS</H2><PRE> <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> <STRONG>int</STRONG> <STRONG>cbreak(void);</STRONG> <STRONG>int</STRONG> <STRONG>nocbreak(void);</STRONG> <STRONG>int</STRONG> <STRONG>echo(void);</STRONG> <STRONG>int</STRONG> <STRONG>noecho(void);</STRONG> <STRONG>int</STRONG> <STRONG>halfdelay(int</STRONG> <STRONG>tenths);</STRONG> <STRONG>int</STRONG> <STRONG>intrflush(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>bool</STRONG> <STRONG>bf);</STRONG> <STRONG>int</STRONG> <STRONG>keypad(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>bool</STRONG> <STRONG>bf);</STRONG> <STRONG>int</STRONG> <STRONG>meta(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>bool</STRONG> <STRONG>bf);</STRONG> <STRONG>int</STRONG> <STRONG>nodelay(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>bool</STRONG> <STRONG>bf);</STRONG> <STRONG>int</STRONG> <STRONG>raw(void);</STRONG> <STRONG>int</STRONG> <STRONG>noraw(void);</STRONG> <STRONG>void</STRONG> <STRONG>noqiflush(void);</STRONG> <STRONG>void</STRONG> <STRONG>qiflush(void);</STRONG> <STRONG>int</STRONG> <STRONG>notimeout(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>bool</STRONG> <STRONG>bf);</STRONG> <STRONG>void</STRONG> <STRONG>timeout(int</STRONG> <STRONG>delay);</STRONG> <STRONG>void</STRONG> <STRONG>wtimeout(WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>delay);</STRONG> <STRONG>int</STRONG> <STRONG>typeahead(int</STRONG> <STRONG>fd);</STRONG></PRE><H2>DESCRIPTION</H2><PRE> Normally, the tty driver buffers typed characters until a newline or carriage return is typed. The <STRONG>cbreak</STRONG> routine disables line buffering and erase/kill character-process- ing (interrupt and flow control characters are unaffect- ed), making characters typed by the user immediately available to the program. The <STRONG>nocbreak</STRONG> routine returns the terminal to normal (cooked) mode. Initially the terminal may or may not be in <STRONG>cbreak</STRONG> mode, as the mode is inherited; therefore, a program should call <STRONG>cbreak</STRONG> or <STRONG>nocbreak</STRONG> explicitly. Most interactive programs using <STRONG>curses</STRONG> set the <STRONG>cbreak</STRONG> mode. Note that <STRONG>cbreak</STRONG> over- rides <STRONG>raw</STRONG>. [See <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG> for a discussion of how these routines interact with <STRONG>echo</STRONG> and <STRONG>noecho</STRONG>.] The <STRONG>echo</STRONG> and <STRONG>noecho</STRONG> routines control whether characters typed by the user are echoed by <STRONG>getch</STRONG> as they are typed. Echoing by the tty driver is always disabled, but initial- ly <STRONG>getch</STRONG> is in echo mode, so characters typed are echoed. Authors of most interactive programs prefer to do their own echoing in a controlled area of the screen, or not to echo at all, so they disable echoing by calling <STRONG>noecho</STRONG>. [See <STRONG><A HREF="curs_getch.3x.html">curs_getch(3x)</A></STRONG> for a discussion of how these routines interact with <STRONG>cbreak</STRONG> and <STRONG>nocbreak</STRONG>.] The <STRONG>halfdelay</STRONG> routine is used for half-delay mode, which is similar to <STRONG>cbreak</STRONG> mode in that characters typed by the user are immediately available to the program. However, after blocking for <EM>tenths</EM> tenths of seconds, ERR is re- turned if nothing has been typed. The value of <STRONG>tenths</STRONG> must be a number between 1 and 255. Use <STRONG>nocbreak</STRONG> to leave half-delay mode. If the <STRONG>intrflush</STRONG> option is enabled, (<EM>bf</EM> is <STRONG>TRUE</STRONG>), when an interrupt key is pressed on the keyboard (interrupt, break, quit) all output in the tty driver queue will be flushed, giving the effect of faster response to the in- terrupt, but causing <STRONG>curses</STRONG> to have the wrong idea of what is on the screen. Disabling (<EM>bf</EM> is <STRONG>FALSE</STRONG>), the option prevents the flush. The default for the option is inher- ited from the tty driver settings. The window argument is ignored. The <STRONG>keypad</STRONG> option enables the keypad of the user's termi- nal. If enabled (<EM>bf</EM> is <STRONG>TRUE</STRONG>), the user can press a func- tion key (such as an arrow key) and <STRONG>wgetch</STRONG> returns a sin- gle value representing the function key, as in <STRONG>KEY_LEFT</STRONG>. If disabled (<EM>bf</EM> is <STRONG>FALSE</STRONG>), <STRONG>curses</STRONG> does not treat function keys specially and the program has to interpret the escape sequences itself. If the keypad in the terminal can be turned on (made to transmit) and off (made to work local-⌨️ 快捷键说明
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