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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><!-- **************************************************************************** * Copyright (c) 1998-2002,2003 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_termattrs.3x,v 1.9 2003/12/27 18:37:47 tom Exp @--><HTML><HEAD><TITLE>curs_termattrs 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_termattrs 3x</H1><HR><PRE><!-- Manpage converted by man2html 3.0.1 --><STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG> <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(3x)</A></STRONG></PRE><H2>NAME</H2><PRE> <STRONG>baudrate</STRONG>, <STRONG>erasechar</STRONG>, <STRONG>erasewchar</STRONG>, <STRONG>has_ic</STRONG>, <STRONG>has_il</STRONG>, <STRONG>killchar</STRONG>, <STRONG>killwchar</STRONG>, <STRONG>longname</STRONG>, <STRONG>term_attrs</STRONG>, <STRONG>termattrs</STRONG>, <STRONG>termname</STRONG> - <STRONG>curses</STRONG> environment query routines</PRE><H2>SYNOPSIS</H2><PRE> <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> <STRONG>int</STRONG> <STRONG>baudrate(void);</STRONG> <STRONG>char</STRONG> <STRONG>erasechar(void);</STRONG> <STRONG>int</STRONG> <STRONG>erasewchar(wchar_t</STRONG> <STRONG>*</STRONG><EM>ch</EM><STRONG>);</STRONG> <STRONG>bool</STRONG> <STRONG>has_ic(void);</STRONG> <STRONG>bool</STRONG> <STRONG>has_il(void);</STRONG> <STRONG>char</STRONG> <STRONG>killchar(void);</STRONG> <STRONG>int</STRONG> <STRONG>killwchar(wchar_t</STRONG> <STRONG>*</STRONG><EM>ch</EM><STRONG>);</STRONG> <STRONG>char</STRONG> <STRONG>*longname(void);</STRONG> <STRONG>attr_t</STRONG> <STRONG>term_attrs(void);</STRONG> <STRONG>chtype</STRONG> <STRONG>termattrs(void);</STRONG> <STRONG>char</STRONG> <STRONG>*termname(void);</STRONG></PRE><H2>DESCRIPTION</H2><PRE> The <STRONG>baudrate</STRONG> routine returns the output speed of the ter- minal. The number returned is in bits per second, for example <STRONG>9600</STRONG>, and is an integer. The <STRONG>erasechar</STRONG> routine returns the user's current erase character. The <STRONG>erasewchar</STRONG> routine stores the current erase character in the location referenced by <EM>ch</EM>. If no erase character has been defined, the routine fails and the location ref- erenced by <EM>ch</EM> is not changed. The <STRONG>has_ic</STRONG> routine is true if the terminal has insert- and delete- character capabilities. The <STRONG>has_il</STRONG> routine is true if the terminal has insert- and delete-line capabilities, or can simulate them using scrolling regions. This might be used to determine if it would be appropriate to turn on physical scrolling using <STRONG>scrollok</STRONG>. The <STRONG>killchar</STRONG> routine returns the user's current line kill character. The <STRONG>killwchar</STRONG> routine stores the current line-kill charac- ter in the location referenced by <EM>ch</EM>. If no line-kill character has been defined, the routine fails and the location referenced by <EM>ch</EM> is not changed. The <STRONG>longname</STRONG> routine returns a pointer to a static area containing a verbose description of the current terminal. The maximum length of a verbose description is 128 charac- ters. It is defined only after the call to <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG>. The area is overwritten by each call to <STRONG>newterm</STRONG> and is not restored by <STRONG>set_term</STRONG>, so the value should be saved between calls to <STRONG>newterm</STRONG> if <STRONG>longname</STRONG> is going to be used with multiple terminals. If a given terminal doesn't support a video attribute that an application program is trying to use, <STRONG>curses</STRONG> may sub- stitute a different video attribute for it. The <STRONG>termattrs</STRONG> and <STRONG>term_attrs</STRONG> functions return a logical <STRONG>OR</STRONG> of all video attributes supported by the terminal using <EM>A</EM><STRONG>_</STRONG> and <EM>WA</EM><STRONG>_</STRONG> con- stants respectively. This information is useful when a <STRONG>curses</STRONG> program needs complete control over the appearance of the screen. The <STRONG>termname</STRONG> routine returns the terminal name used by <STRONG>setupterm</STRONG>.</PRE><H2>RETURN VALUE</H2><PRE> <STRONG>longname</STRONG> and <STRONG>termname</STRONG> return <STRONG>NULL</STRONG> on error. Routines that return an integer return <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG> (SVr4 only specifies "an integer value other than <STRONG>ERR</STRONG>") upon successful completion.</PRE><H2>NOTES</H2><PRE> Note that <STRONG>termattrs</STRONG> may be a macro.</PRE><H2>PORTABILITY</H2><PRE> The XSI Curses standard, Issue 4 describes these func- tions. It changes the return type of <STRONG>termattrs</STRONG> to the new type <STRONG>attr_t</STRONG>. Most versions of curses truncate the result returned by <STRONG>termname</STRONG> to 14 characters.</PRE><H2>SEE ALSO</H2><PRE> <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>, <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG> <STRONG><A HREF="curs_termattrs.3x.html">curs_termattrs(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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