2 ****************************************************************************
3 * Copyright (c) 1998-2007,2010 Free Software Foundation, Inc. *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
28 ****************************************************************************
29 * @Id: curs_slk.3x,v 1.22 2010/12/04 18:38:55 tom Exp @
31 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
34 <meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
35 <meta name="generator" content="Manpage converted by man2html - see http://invisible-island.net/scripts/readme.html#others_scripts">
36 <TITLE>curs_slk 3x</TITLE>
37 <link rev=made href="mailto:bug-ncurses@gnu.org">
38 <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
44 <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG> <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
50 <H2><a name="h2-NAME">NAME</a></H2><PRE>
51 <STRONG>slk_init</STRONG>, <STRONG>slk_set</STRONG>, <STRONG>slk_wset</STRONG>, <STRONG>slk_refresh</STRONG>, <STRONG>slk_noutrefresh</STRONG>,
52 <STRONG>slk_label</STRONG>, <STRONG>slk_clear</STRONG>, <STRONG>slk_restore</STRONG>, <STRONG>slk_touch</STRONG>, <STRONG>slk_attron</STRONG>,
53 <STRONG>slk_attrset</STRONG>, <STRONG>slk_attroff</STRONG>, <STRONG>slk_attr_on</STRONG>, <STRONG>slk_attr_set</STRONG>,
54 <STRONG>slk_attr_off</STRONG>, <STRONG>slk_attr</STRONG>, <STRONG>slk_color</STRONG> - <STRONG>curses</STRONG> soft label
59 <H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
60 <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
62 <STRONG>int</STRONG> <STRONG>slk_init(int</STRONG> <STRONG>fmt);</STRONG>
63 <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>
64 <STRONG>int</STRONG> <STRONG>slk_refresh(void);</STRONG>
65 <STRONG>int</STRONG> <STRONG>slk_noutrefresh(void);</STRONG>
66 <STRONG>char</STRONG> <STRONG>*slk_label(int</STRONG> <STRONG>labnum);</STRONG>
67 <STRONG>int</STRONG> <STRONG>slk_clear(void);</STRONG>
68 <STRONG>int</STRONG> <STRONG>slk_restore(void);</STRONG>
69 <STRONG>int</STRONG> <STRONG>slk_touch(void);</STRONG>
70 <STRONG>int</STRONG> <STRONG>slk_attron(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG>
71 <STRONG>int</STRONG> <STRONG>slk_attroff(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG>
72 <STRONG>int</STRONG> <STRONG>slk_attrset(const</STRONG> <STRONG>chtype</STRONG> <STRONG>attrs);</STRONG>
73 <STRONG>int</STRONG> <STRONG>slk_attr_on(attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void*</STRONG> <STRONG>opts);</STRONG>
74 <STRONG>int</STRONG> <STRONG>slk_attr_off(const</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>void</STRONG> <STRONG>*</STRONG> <STRONG>opts);</STRONG>
75 <STRONG>int</STRONG> <STRONG>slk_attr_set(const</STRONG> <STRONG>attr_t</STRONG> <STRONG>attrs,</STRONG> <STRONG>short</STRONG> <STRONG>color_pair,</STRONG>
76 <STRONG>void*</STRONG> <STRONG>opts);</STRONG>
77 <STRONG>attr_t</STRONG> <STRONG>slk_attr(void);</STRONG>
78 <STRONG>int</STRONG> <STRONG>slk_color(short</STRONG> <STRONG>color_pair);</STRONG>
79 <STRONG>int</STRONG> <STRONG>slk_wset(int</STRONG> <STRONG>labnum,</STRONG> <STRONG>const</STRONG> <STRONG>wchar_t</STRONG> <STRONG>*label,</STRONG> <STRONG>int</STRONG> <STRONG>fmt);</STRONG>
83 <H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
84 The slk* functions manipulate the set of soft function-key
85 labels that exist on many terminals. For those terminals
86 that do not have soft labels, <STRONG>curses</STRONG> takes over the bottom
87 line of <STRONG>stdscr</STRONG>, reducing the size of <STRONG>stdscr</STRONG> and the vari-
88 able <STRONG>LINES</STRONG>. <STRONG>curses</STRONG> standardizes on eight labels of up to
89 eight characters each. In addition to this, the ncurses
90 implementation supports a mode where it simulates 12 la-
91 bels of up to five characters each. This is useful for
92 today's PC-like enduser devices. ncurses simulates this
93 mode by taking over up to two lines at the bottom of the
94 screen; it does not try to use any hardware support for
97 The <STRONG>slk_init</STRONG> routine must be called before <STRONG>initscr</STRONG> or
98 <STRONG>newterm</STRONG> is called. If <STRONG>initscr</STRONG> eventually uses a line from
99 <STRONG>stdscr</STRONG> to emulate the soft labels, then <EM>fmt</EM> determines how
100 the labels are arranged on the screen:
102 <STRONG>0</STRONG> indicates a 3-2-3 arrangement of the labels.
104 <STRONG>1</STRONG> indicates a 4-4 arrangement
106 <STRONG>2</STRONG> indicates the PC-like 4-4-4 mode.
108 <STRONG>3</STRONG> is again the PC-like 4-4-4 mode, but in addition
109 an index line is generated, helping the user to
110 identify the key numbers easily.
112 The <STRONG>slk_set</STRONG> routine (and the <STRONG>slk_wset</STRONG> routine for the
113 wide-character library) has three parameters:
116 is the label number, from <STRONG>1</STRONG> to <STRONG>8</STRONG> (12 for <EM>fmt</EM>
117 in <STRONG>slk_init</STRONG> is <STRONG>2</STRONG> or <STRONG>3</STRONG>);
120 is be the string to put on the label, up to
121 eight (five for <EM>fmt</EM> in <STRONG>slk_init</STRONG> is <STRONG>2</STRONG> or <STRONG>3</STRONG>)
122 characters in length. A null string or a null
123 pointer sets up a blank label.
125 <EM>fmt</EM> is either <STRONG>0</STRONG>, <STRONG>1</STRONG>, or <STRONG>2</STRONG>, indicating whether the
126 label is to be left-justified, centered, or
127 right-justified, respectively, within the la-
130 The <STRONG>slk_refresh</STRONG> and <STRONG>slk_noutrefresh</STRONG> routines correspond to
131 the <STRONG>wrefresh</STRONG> and <STRONG>wnoutrefresh</STRONG> routines.
133 The <STRONG>slk_label</STRONG> routine returns the current label for label
134 number <EM>labnum</EM>, with leading and trailing blanks stripped.
136 The <STRONG>slk_clear</STRONG> routine clears the soft labels from the
139 The <STRONG>slk_restore</STRONG> routine restores the soft labels to the
140 screen after a <STRONG>slk_clear</STRONG> has been performed.
142 The <STRONG>slk_touch</STRONG> routine forces all the soft labels to be
143 output the next time a <STRONG>slk_noutrefresh</STRONG> is performed.
145 The <STRONG>slk_attron</STRONG>, <STRONG>slk_attrset</STRONG>, <STRONG>slk_attroff</STRONG> and <STRONG>slk_attr</STRONG> rou-
146 tines correspond to <STRONG>attron</STRONG>, <STRONG>attrset</STRONG>, <STRONG>attroff</STRONG> and <STRONG>attr_get</STRONG>.
147 They have an effect only if soft labels are simulated on
148 the bottom line of the screen. The default highlight for
149 soft keys is A_STANDOUT (as in System V curses, which does
150 not document this fact).
152 The <STRONG>slk_color</STRONG> routine corresponds to <STRONG>color_set</STRONG>. It has an
153 effect only if soft labels are simulated on the bottom
158 <H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
159 These routines return <STRONG>ERR</STRONG> upon failure and OK (SVr4 speci-
160 fies only "an integer value other than <STRONG>ERR</STRONG>") upon success-
163 X/Open defines no error conditions. In this implementa-
166 <STRONG>slk_attr</STRONG>
167 returns the attribute used for the soft keys.
169 <STRONG>slk_attroff</STRONG>, <STRONG>slk_attron</STRONG>, <STRONG>slk_clear</STRONG>,
170 <STRONG>slk_noutrefresh</STRONG>, <STRONG>slk_refresh</STRONG>, <STRONG>slk_touch</STRONG>
171 return an error if the terminal or the soft-
172 keys were not initialized.
174 <STRONG>slk_attrset</STRONG>
175 returns an error if the terminal or the soft-
176 keys were not initialized.
178 <STRONG>slk_attr_set</STRONG>
179 returns an error if the terminal or the soft-
180 keys were not initialized, or the color pair
181 is outside the range 0..COLOR_PAIRS-1, or opts
184 <STRONG>slk_color</STRONG>
185 returns an error if the terminal or the soft-
186 keys were not initialized, or the color pair
187 is outside the range 0..COLOR_PAIRS-1.
189 <STRONG>slk_init</STRONG>
190 returns an error if the format parameter is
191 outside the range 0..3.
193 <STRONG>slk_label</STRONG>
194 returns <STRONG>NULL</STRONG> on error.
196 <STRONG>slk_set</STRONG>
197 returns an error if the terminal or the soft-
198 keys were not initialized, or the <EM>labnum</EM> pa-
199 rameter is outside the range of label counts,
200 or if the format parameter is outside the
201 range 0..2, or if memory for the labels cannot
206 <H2><a name="h2-NOTES">NOTES</a></H2><PRE>
207 Most applications would use <STRONG>slk_noutrefresh</STRONG> because a <STRONG>wre-</STRONG>
208 <STRONG>fresh</STRONG> is likely to follow soon.
212 <H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
213 The XSI Curses standard, Issue 4, describes these func-
214 tions. It changes the argument type of the attribute-ma-
215 nipulation functions <STRONG>slk_attron</STRONG>, <STRONG>slk_attroff</STRONG>, <STRONG>slk_attrset</STRONG>
216 to be <STRONG>attr_t</STRONG>, and adds <STRONG>const</STRONG> qualifiers. The format codes
217 <STRONG>2</STRONG> and <STRONG>3</STRONG> for <STRONG>slk_init()</STRONG> and the function <STRONG>slk_attr</STRONG> are spe-
222 <H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
223 <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>
224 <STRONG><A HREF="curs_refresh.3x.html">fresh(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>.
228 <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>
232 <li><a href="#h2-NAME">NAME</a></li>
233 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
234 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a></li>
235 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
236 <li><a href="#h2-NOTES">NOTES</a></li>
237 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
238 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>