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| * @Id: term_variables.3x,v 1.6 2015/04/22 00:34:49 tom Exp @ |
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| <H1 class="no-header">term_variables 3x</H1> |
| <PRE> |
| <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><a name="h2-NAME">NAME</a></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><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE> |
| <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> |
| <STRONG>#include</STRONG> <STRONG><term.h></STRONG> |
| |
| <STRONG>chtype</STRONG> <STRONG>acs_map[];</STRONG> |
| |
| <STRONG>TERMINAL</STRONG> <STRONG>*</STRONG> <STRONG>cur_term;</STRONG> |
| |
| <STRONG>char</STRONG> <STRONG>ttytype[];</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>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> |
| |
| |
| </PRE> |
| <H2><a name="h2-DESCRIPTION">DESCRIPTION</a></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. |
| |
| |
| </PRE> |
| <H3><a name="h3-Alternate-Character-Set-Mapping">Alternate Character Set Mapping</a></H3><PRE> |
| 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. |
| |
| |
| </PRE> |
| <H3><a name="h3-Current-Terminal-Data">Current Terminal Data</a></H3><PRE> |
| 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="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG> |
| and <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(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>. |
| |
| |
| </PRE> |
| <H3><a name="h3-Terminfo-Names">Terminfo Names</a></H3><PRE> |
| 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 |
| the long and short names of terminfo capabilities, as well |
| as the corresponding names for termcap capabilities. |
| These are available to other applications, although the |
| hash-tables used by the terminfo and termcap functions are |
| not available. |
| |
| The long terminfo capability names use a "l" (ell) in |
| their names: <STRONG>boolfnames</STRONG>, <STRONG>numfnames</STRONG>, and <STRONG>strfnames</STRONG>. |
| |
| These are the short names for terminfo capabilities: <STRONG>bool-</STRONG> |
| <STRONG>names</STRONG>, <STRONG>numnames</STRONG>, and <STRONG>strnames</STRONG>. |
| |
| These are the corresponding names used for termcap de- |
| scriptions: <STRONG>boolcodes</STRONG>, <STRONG>numcodes</STRONG>, and <STRONG>strcodes</STRONG>. |
| |
| |
| </PRE> |
| <H3><a name="h3-Terminal-Type">Terminal Type</a></H3><PRE> |
| On initialization of the curses or terminfo interfaces, |
| <STRONG>setupterm</STRONG> copies the terminal name to the array <STRONG>ttytype</STRONG>. |
| |
| |
| </PRE> |
| <H3><a name="h3-Terminfo-Names">Terminfo Names</a></H3><PRE> |
| In addition to the variables, <STRONG><term.h></STRONG> also defines a sym- |
| bol for each terminfo capability <EM>long</EM> <EM>name</EM>. These are in |
| terms of the symbol <STRONG>CUR</STRONG>, which is defined |
| |
| #define CUR cur_term->type. |
| |
| These symbols provide a faster method of accessing termin- |
| fo capabilities than using <STRONG><A HREF="tigetstr.3x.html">tigetstr(3x)</A></STRONG>, etc. |
| |
| |
| </PRE> |
| <H2><a name="h2-NOTES">NOTES</a></H2><PRE> |
| The low-level terminfo interface is initialized using |
| <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>. The upper-level curses interface uses the |
| low-level terminfo interface, internally. |
| |
| |
| </PRE> |
| <H2><a name="h2-PORTABILITY">PORTABILITY</a></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. |
| |
| All implementations which provide terminfo interfaces add |
| definitions as described in the <STRONG>Terminfo</STRONG> <STRONG>Names</STRONG> section. |
| Most, but not all, base the definition upon the <STRONG>cur_term</STRONG> |
| variable. |
| |
| |
| </PRE> |
| <H2><a name="h2-SEE-ALSO">SEE ALSO</a></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><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>. |
| |
| |
| |
| <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG> |
| </PRE> |
| <div class="nav"> |
| <ul> |
| <li><a href="#h2-NAME">NAME</a></li> |
| <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li> |
| <li><a href="#h2-DESCRIPTION">DESCRIPTION</a> |
| <ul> |
| <li><a href="#h3-Alternate-Character-Set-Mapping">Alternate Character Set Mapping</a></li> |
| <li><a href="#h3-Current-Terminal-Data">Current Terminal Data</a></li> |
| <li><a href="#h3-Terminfo-Names">Terminfo Names</a></li> |
| <li><a href="#h3-Terminal-Type">Terminal Type</a></li> |
| <li><a href="#h3-Terminfo-Names">Terminfo Names</a></li> |
| </ul> |
| </li> |
| <li><a href="#h2-NOTES">NOTES</a></li> |
| <li><a href="#h2-PORTABILITY">PORTABILITY</a></li> |
| <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li> |
| </ul> |
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