2 ****************************************************************************
3 * Copyright (c) 2011-2013,2015 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: term_variables.3x,v 1.7 2015/12/05 18:43:25 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>term_variables 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">
41 <H1 class="no-header">term_variables 3x</H1>
43 <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG> <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>
48 </PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
49 <STRONG>SP</STRONG>, <STRONG>acs_map</STRONG>, <STRONG>boolcodes</STRONG>, <STRONG>boolfnames</STRONG>, <STRONG>boolnames</STRONG>, <STRONG>cur_term</STRONG>,
50 <STRONG>numcodes</STRONG>, <STRONG>numfnames</STRONG>, <STRONG>numnames</STRONG>, <STRONG>strcodes</STRONG>, <STRONG>strfnames</STRONG>,
51 <STRONG>strnames</STRONG>, <STRONG>ttytype</STRONG> - <STRONG>curses</STRONG> terminfo global variables
54 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
55 <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
56 <STRONG>#include</STRONG> <STRONG><term.h></STRONG>
58 <STRONG>chtype</STRONG> <STRONG>acs_map[];</STRONG>
60 <STRONG>SCREEN</STRONG> <STRONG>*</STRONG> <STRONG>SP;</STRONG>
62 <STRONG>TERMINAL</STRONG> <STRONG>*</STRONG> <STRONG>cur_term;</STRONG>
64 <STRONG>char</STRONG> <STRONG>ttytype[];</STRONG>
66 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolcodes;</STRONG>
67 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolfnames;</STRONG>
68 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolnames;</STRONG>
70 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numcodes;</STRONG>
71 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numfnames;</STRONG>
72 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numnames;</STRONG>
74 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strcodes;</STRONG>
75 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strfnames;</STRONG>
76 <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strnames;</STRONG>
79 </PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
80 This page summarizes variables provided by the <STRONG>curses</STRONG> li-
81 brary's low-level terminfo interface. A more complete de-
82 scription is given in the <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG> manual page.
84 Depending on the configuration, these may be actual vari-
85 ables, or macros (see <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG>) which provide
86 read-only access to <EM>curses</EM>'s state. In either case, ap-
87 plications should treat them as read-only to avoid confus-
91 </PRE><H3><a name="h3-Alternate-Character-Set-Mapping">Alternate Character Set Mapping</a></H3><PRE>
92 After initializing the curses or terminfo interfaces, the
93 <STRONG>acs_map</STRONG> array holds information used to translate cells
94 with the <STRONG>A_ALTCHARSET</STRONG> video attribute into line-drawing
97 The encoding of the information in this array has changed
98 periodically. Application developers need only know that
99 it is used for the "ACS_" constants in <curses.h>.
101 The comparable data for the wide-character library is a
105 </PRE><H3><a name="h3-Current-Terminal-Data">Current Terminal Data</a></H3><PRE>
106 After initializing the curses or terminfo interfaces, the
107 <STRONG>cur_term</STRONG> contains data describing the current terminal.
108 This variable is also set as a side-effect of <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>
109 and <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>.
111 It is possible to save a value of <STRONG>cur_term</STRONG> for subsequent
112 use as a parameter to <STRONG>set_term</STRONG>, for switching between
113 screens. Alternatively, one can save the return value
114 from <STRONG>newterm</STRONG> or <STRONG>setupterm</STRONG> to reuse in <STRONG>set_term</STRONG>.
117 </PRE><H3><a name="h3-Terminfo-Names">Terminfo Names</a></H3><PRE>
118 The <STRONG><A HREF="tic.1m.html">tic(1m)</A></STRONG> and <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG> programs use lookup tables for
119 the long and short names of terminfo capabilities, as well
120 as the corresponding names for termcap capabilities.
121 These are available to other applications, although the
122 hash-tables used by the terminfo and termcap functions are
125 The long terminfo capability names use a "l" (ell) in
126 their names: <STRONG>boolfnames</STRONG>, <STRONG>numfnames</STRONG>, and <STRONG>strfnames</STRONG>.
128 These are the short names for terminfo capabilities: <STRONG>bool-</STRONG>
129 <STRONG>names</STRONG>, <STRONG>numnames</STRONG>, and <STRONG>strnames</STRONG>.
131 These are the corresponding names used for termcap de-
132 scriptions: <STRONG>boolcodes</STRONG>, <STRONG>numcodes</STRONG>, and <STRONG>strcodes</STRONG>.
135 </PRE><H3><a name="h3-Terminal-Type">Terminal Type</a></H3><PRE>
136 On initialization of the curses or terminfo interfaces,
137 <STRONG>setupterm</STRONG> copies the terminal name to the array <STRONG>ttytype</STRONG>.
140 </PRE><H3><a name="h3-Terminfo-Names">Terminfo Names</a></H3><PRE>
141 In addition to the variables, <STRONG><term.h></STRONG> also defines a sym-
142 bol for each terminfo capability <EM>long</EM> <EM>name</EM>. These are in
143 terms of the symbol <STRONG>CUR</STRONG>, which is defined
145 #define CUR cur_term->type.
147 These symbols provide a faster method of accessing termin-
148 fo capabilities than using <STRONG><A HREF="tigetstr.3x.html">tigetstr(3x)</A></STRONG>, etc.
151 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
152 The low-level terminfo interface is initialized using
153 <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>. The upper-level curses interface uses the
154 low-level terminfo interface, internally.
157 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
158 X/Open Curses does not describe any of these except for
159 <STRONG>cur_term</STRONG>. (The inclusion of <STRONG>cur_term</STRONG> appears to be an
160 oversight, since other comparable low-level information is
163 Other implementations may have comparable variables. Some
164 implementations provide the variables in their libraries,
165 but omit them from the header files.
167 All implementations which provide terminfo interfaces add
168 definitions as described in the <STRONG>Terminfo</STRONG> <STRONG>Names</STRONG> section.
169 Most, but not all, base the definition upon the <STRONG>cur_term</STRONG>
173 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
174 <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>, <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG>,
175 <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
179 <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>
183 <li><a href="#h2-NAME">NAME</a></li>
184 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
185 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
187 <li><a href="#h3-Alternate-Character-Set-Mapping">Alternate Character Set Mapping</a></li>
188 <li><a href="#h3-Current-Terminal-Data">Current Terminal Data</a></li>
189 <li><a href="#h3-Terminfo-Names">Terminfo Names</a></li>
190 <li><a href="#h3-Terminal-Type">Terminal Type</a></li>
191 <li><a href="#h3-Terminfo-Names">Terminfo Names</a></li>
194 <li><a href="#h2-NOTES">NOTES</a></li>
195 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
196 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>