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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_slk.3x,v 1.14 2005/05/15 16:19:06 tom Exp @--><HTML><HEAD><TITLE>curs_slk 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_slk 3x</H1><HR><PRE><!-- Manpage converted by man2html 3.0.1 --><STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG> <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG></PRE><H2>NAME</H2><PRE> <STRONG>slk_init</STRONG>, <STRONG>slk_set</STRONG>, <STRONG>slk_refresh</STRONG>, <STRONG>slk_noutrefresh</STRONG>, <STRONG>slk_label</STRONG>, <STRONG>slk_clear</STRONG>, <STRONG>slk_restore</STRONG>, <STRONG>slk_touch</STRONG>, <STRONG>slk_attron</STRONG>, <STRONG>slk_attrset</STRONG>, <STRONG>slk_attroff</STRONG>, <STRONG>slk_attr_on</STRONG>, <STRONG>slk_attr_set</STRONG>, <STRONG>slk_attr_off</STRONG>, <STRONG>slk_attr</STRONG>, <STRONG>slk_color</STRONG> - <STRONG>curses</STRONG> soft label routines</PRE><H2>SYNOPSIS</H2><PRE> <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> <STRONG>int</STRONG> <STRONG>slk_init(int</STRONG> <STRONG>fmt);</STRONG> <STRONG>int</STRONG> <STRONG>slk_set(int</STRONG> <STRONG>labnum,</STRONG> <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*label,</STRONG> <STRONG>int</STRONG> <STRONG>fmt);</STRONG> <STRONG>int</STRONG> <STRONG>slk_refresh(void);</STRONG> <STRONG>int</STRONG> <STRONG>slk_noutrefresh(void);</STRONG> <STRONG>char</STRONG> <STRONG>*slk_label(int</STRONG> <STRONG>labnum);</STRONG> <STRONG>int</STRONG> <STRONG>slk_clear(void);</STRONG> <STRONG>int</STRONG> <STRONG>slk_restore(void);</STRONG> <STRONG>int</STRONG> <STRONG>slk_touch(void);</STRONG> <STRONG>int</STRONG> <STRONG>slk_attron(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG> <STRONG>int</STRONG> <STRONG>slk_attroff(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG> <STRONG>int</STRONG> <STRONG>slk_attrset(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG> <STRONG>int</STRONG> <STRONG>slk_attr_on(attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void*</STRONG> <STRONG>opts);</STRONG> <STRONG>int</STRONG> <STRONG>slk_attr_off(const</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void</STRONG> <STRONG>*</STRONG> <STRONG>opts);</STRONG> <STRONG>int</STRONG> <STRONG>slk_attr_set(const</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>short</STRONG> <STRONG>color_pair_number,</STRONG> <STRONG>void*</STRONG> <STRONG>opts);</STRONG> <STRONG>attr_t</STRONG> <STRONG>slk_attr(void);</STRONG> <STRONG>int</STRONG> <STRONG>slk_color(short</STRONG> <STRONG>color_pair_number);</STRONG></PRE><H2>DESCRIPTION</H2><PRE> The slk* functions manipulate the set of soft function-key labels that exist on many terminals. For those terminals that do not have soft labels, <STRONG>curses</STRONG> takes over the bottom line of <STRONG>stdscr</STRONG>, reducing the size of <STRONG>stdscr</STRONG> and the vari- able <STRONG>LINES</STRONG>. <STRONG>curses</STRONG> standardizes on eight labels of up to eight characters each. In addition to this, the ncurses implementation supports a mode where it simulates 12 la- bels of up to five characters each. This is most common for todays PC like enduser devices. Please note that ncurses simulates this mode by taking over up to two lines at the bottom of the screen, it doesn't try to use any hardware support for this mode. The <STRONG>slk_init</STRONG> routine must be called before <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG> is called. If <STRONG>initscr</STRONG> eventually uses a line from <STRONG>stdscr</STRONG> to emulate the soft labels, then <EM>fmt</EM> determines how the labels are arranged on the screen. Setting <EM>fmt</EM> to <STRONG>0</STRONG> indicates a 3-2-3 arrangement of the labels, <STRONG>1</STRONG> indicates a 4-4 arrangement and <STRONG>2</STRONG> indicates the PC like 4-4-4 mode. If <STRONG>fmt</STRONG> is set to <STRONG>3</STRONG>, it is again the PC like 4-4-4 mode, but in addition an index line is generated, helping the user to identify the key numbers easily. The <STRONG>slk_set</STRONG> routine requires <EM>labnum</EM> to be a label number, from <STRONG>1</STRONG> to <STRONG>8</STRONG> (resp. <STRONG>12</STRONG>); <EM>label</EM> must be the string to be put on the label, up to eight (resp. five) characters in length. A null string or a null pointer sets up a blank label. <EM>fmt</EM> is either <STRONG>0</STRONG>, <STRONG>1</STRONG>, or <STRONG>2</STRONG>, indicating whether the label is to be left-justified, centered, or right-justi- fied, respectively, within the label. The <STRONG>slk_refresh</STRONG> and <STRONG>slk_noutrefresh</STRONG> routines correspond to the <STRONG>wrefresh</STRONG> and <STRONG>wnoutrefresh</STRONG> routines. The <STRONG>slk_label</STRONG> routine returns the current label for label number <EM>labnum</EM>, with leading and trailing blanks stripped. The <STRONG>slk_clear</STRONG> routine clears the soft labels from the screen. The <STRONG>slk_restore</STRONG> routine restores the soft labels to the screen after a <STRONG>slk_clear</STRONG> has been performed. The <STRONG>slk_touch</STRONG> routine forces all the soft labels to be output the next time a <STRONG>slk_noutrefresh</STRONG> is performed. The <STRONG>slk_attron</STRONG>, <STRONG>slk_attrset</STRONG>, <STRONG>slk_attroff</STRONG> and <STRONG>slk_attr</STRONG> rou- tines correspond to <STRONG>attron</STRONG>, <STRONG>attrset</STRONG>, <STRONG>attroff</STRONG> and <STRONG>attr_get</STRONG>. They have an effect only if soft labels are simulated on the bottom line of the screen. The default highlight for soft keys is A_STANDOUT (as in System V curses, which does not document this fact). The <STRONG>slk_color</STRONG> routine corresponds to <STRONG>color_set</STRONG>. It has an effect only if soft labels are simulated on the bottom line of the screen.</PRE><H2>RETURN VALUE</H2><PRE> These routines return <STRONG>ERR</STRONG> upon failure and OK (SVr4 speci- fies only "an integer value other than <STRONG>ERR</STRONG>") upon success- ful completion. X/Open defines no error conditions. In this implementa- tion <STRONG>slk_attr</STRONG> returns the attribute used for the soft keys. <STRONG>slk_attroff</STRONG>, <STRONG>slk_attron</STRONG>, <STRONG>slk_clear</STRONG>, <STRONG>slk_noutrefresh</STRONG>, <STRONG>slk_refresh</STRONG>, <STRONG>slk_touch</STRONG> return an error if the terminal or the soft- keys were not initialized. <STRONG>slk_attrset</STRONG> returns an error if the terminal or the soft- keys were not initialized. <STRONG>slk_attr_set</STRONG> returns an error if the terminal or the soft- keys were not initialized, or the color pair is outside the range 0..COLOR_PAIRS-1, or opts is not null. <STRONG>slk_color</STRONG> returns an error if the terminal or the soft- keys were not initialized, or the color pair is outside the range 0..COLOR_PAIRS-1. <STRONG>slk_init</STRONG> returns an error if the format parameter is outside the range 0..3. <STRONG>slk_label</STRONG> returns <STRONG>NULL</STRONG> on error. <STRONG>slk_set</STRONG> returns an error if the terminal or the soft- keys were not initialized, or the <EM>labnum</EM> pa- rameter is outside the range of label counts, or if the format parameter is outside the range 0..2, or if memory for the labels cannot be allocated.</PRE><H2>NOTES</H2><PRE> Most applications would use <STRONG>slk_noutrefresh</STRONG> because a <STRONG>wre-</STRONG> <STRONG>fresh</STRONG> is likely to follow soon.</PRE><H2>PORTABILITY</H2><PRE> The XSI Curses standard, Issue 4, describes these func- tions. It changes the argument type of the attribute-ma- nipulation functions <STRONG>slk_attron</STRONG>, <STRONG>slk_attroff</STRONG>, <STRONG>slk_attrset</STRONG> to be <STRONG>attr_t</STRONG>, and adds <STRONG>const</STRONG> qualifiers. The format codes <STRONG>2</STRONG> and <STRONG>3</STRONG> for <STRONG>slk_init()</STRONG> and the function <STRONG>slk_attr</STRONG> are spe- cific to ncurses.</PRE><H2>SEE ALSO</H2><PRE> <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_attr.3x.html">curs_attr(3x)</A></STRONG>, <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>, <STRONG>curs_re-</STRONG> <STRONG><A HREF="curs_refresh.3x.html">fresh(3x)</A></STRONG> <STRONG><A HREF="curs_slk.3x.html">curs_slk(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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