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* @Id: term_variables.3x,v 1.2 2010/12/04 18:38:55 tom Exp @
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<H1>term_variables 3x</H1>
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<PRE>
<!-- Manpage converted by man2html 3.0.1 -->
<STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG> <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>
</PRE>
<H2>NAME</H2><PRE>
<STRONG>SP</STRONG>, <STRONG>acs_map</STRONG>, <STRONG>boolcodes</STRONG>, <STRONG>boolfnames</STRONG>, <STRONG>boolnames</STRONG>, <STRONG>cur_term</STRONG>,
<STRONG>numcodes</STRONG>, <STRONG>numfnames</STRONG>, <STRONG>numnames</STRONG>, <STRONG>strcodes</STRONG>, <STRONG>strfnames</STRONG>,
<STRONG>strnames</STRONG>, <STRONG>ttytype</STRONG> - <STRONG>curses</STRONG> terminfo global variables
</PRE>
<H2>SYNOPSIS</H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
<STRONG>#include</STRONG> <STRONG><term.h></STRONG>
<STRONG>chtype</STRONG> <STRONG>acs_map[];</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolcodes;</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolfnames;</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolnames;</STRONG>
<STRONG>TERMINAL</STRONG> <STRONG>*</STRONG> <STRONG>cur_term;</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numcodes;</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numfnames;</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numnames;</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strcodes;</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strfnames;</STRONG>
<STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strnames;</STRONG>
<STRONG>char</STRONG> <STRONG>ttytype[];</STRONG>
</PRE>
<H2>DESCRIPTION</H2><PRE>
This page summarizes variables provided by the <STRONG>curses</STRONG> li-
brary's low-level terminfo interface. A more complete de-
scription is given in the <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG> manual page.
Depending on the configuration, these may be actual vari-
ables, or macros (see <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG>) which provide
read-only access to <EM>curses</EM>'s state. In either case, ap-
plications should treat them as read-only to avoid confus-
ing the library.
<STRONG>Alternate</STRONG> <STRONG>Character</STRONG> <STRONG>Set</STRONG> <STRONG>Mapping</STRONG>
After initializing the curses or terminfo interfaces, the
<STRONG>acs_map</STRONG> array holds information used to translate cells
with the <STRONG>A_ALTCHARSET</STRONG> video attribute into line-drawing
characters.
The encoding of the information in this array has changed
periodically. Application developers need only know that
it is used for the "ACS_" constants in <curses.h>.
The comparable data for the wide-character library is a
private variable.
<STRONG>Current</STRONG> <STRONG>Terminal</STRONG> <STRONG>Data</STRONG>
After initializing the curses or terminfo interfaces, the
<STRONG>cur_term</STRONG> contains data describing the current terminal.
This variable is also set as a side-effect of <STRONG><A HREF="set_term.3x.html">set_term(3x)</A></STRONG>
and <STRONG><A HREF="delscreen.3x.html">delscreen(3x)</A></STRONG>.
It is possible to save a value of <STRONG>cur_term</STRONG> for subsequent
use as a parameter to <STRONG>set_term</STRONG>, for switching between
screens. Alternatively, one can save the return value
from <STRONG>newterm</STRONG> or <STRONG>setupterm</STRONG> to reuse in <STRONG>set_term</STRONG>.
<STRONG>Terminfo</STRONG> <STRONG>Names</STRONG>
The <STRONG><A HREF="tic.1.html">tic(1)</A></STRONG> and <STRONG><A HREF="infocmp.1.html">infocmp(1)</A></STRONG> programs use lookup tables for
the long and short names of terminfo capabilities, as well
as the corresponding names for termcap capabilities.
These are available to other applications, though the
hash-tables are not available.
The long terminfo capability names use a "l" (ell) in
their names: boolfnames numfnames strfnames
These are the short names for terminfo capabilities: bool-
names, numnames, and strnames.
These are the corresponding names used for termcap de-
scriptions: boolcodes, numcodes, and strcodes.
<STRONG>Terminal</STRONG> <STRONG>Type</STRONG>
On initialization of the curses or terminfo interfaces,
<STRONG>setupterm</STRONG> copies the terminal name to the array <STRONG>ttytype</STRONG>.
</PRE>
<H2>NOTES</H2><PRE>
The low-level terminfo interface is initialized using <STRONG>se-</STRONG>
<STRONG><A HREF="setupterm.3x.html">tupterm(3x)</A></STRONG>. The upper-level curses interface uses the
low-level terminfo interface, internally.
</PRE>
<H2>PORTABILITY</H2><PRE>
X/Open Curses does not describe any of these except for
<STRONG>cur_term</STRONG>. (The inclusion of <STRONG>cur_term</STRONG> appears to be an
oversight, since other comparable low-level information is
omitted by X/Open).
Other implementations may have comparable variables. Some
implementations provide the variables in their libraries,
but omit them from the header files.
</PRE>
<H2>SEE ALSO</H2><PRE>
<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>, <STRONG>termin-</STRONG>
<STRONG><A HREF="terminfo.3x.html">fo(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
<STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>
</PRE>
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