doc/html/man/term_variables.3x.html

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  34 <TITLE>term_variables 3x</TITLE>
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  39 <H1>term_variables 3x</H1>
  40 <HR>
  41 <PRE>
  42 <!-- Manpage converted by man2html 3.0.1 -->
  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>
  44
  45
  46
  47
  48 </PRE>
  49 <H2>NAME</H2><PRE>
  50        <STRONG>SP</STRONG>, <STRONG>acs_map</STRONG>, <STRONG>boolcodes</STRONG>, <STRONG>boolfnames</STRONG>, <STRONG>boolnames</STRONG>, <STRONG>cur_term</STRONG>,
  51        <STRONG>numcodes</STRONG>, <STRONG>numfnames</STRONG>, <STRONG>numnames</STRONG>, <STRONG>strcodes</STRONG>, <STRONG>strfnames</STRONG>,
  52        <STRONG>strnames</STRONG>, <STRONG>ttytype</STRONG> - <STRONG>curses</STRONG> terminfo global variables
  53
  54
  55 </PRE>
  56 <H2>SYNOPSIS</H2><PRE>
  57        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
  58        <STRONG>#include</STRONG> <STRONG>&lt;term.h&gt;</STRONG>
  59
  60        <STRONG>chtype</STRONG> <STRONG>acs_map[];</STRONG>
  61        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolcodes;</STRONG>
  62        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolfnames;</STRONG>
  63        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>boolnames;</STRONG>
  64        <STRONG>TERMINAL</STRONG> <STRONG>*</STRONG> <STRONG>cur_term;</STRONG>
  65        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numcodes;</STRONG>
  66        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numfnames;</STRONG>
  67        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>numnames;</STRONG>
  68        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strcodes;</STRONG>
  69        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strfnames;</STRONG>
  70        <STRONG>NCURSES_CONST</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>const</STRONG> <STRONG>*</STRONG> <STRONG>strnames;</STRONG>
  71        <STRONG>char</STRONG> <STRONG>ttytype[];</STRONG>
  72
  73
  74 </PRE>
  75 <H2>DESCRIPTION</H2><PRE>
  76        This  page summarizes variables provided by the <STRONG>curses</STRONG> li-
  77        brary's low-level terminfo interface.  A more complete de-
  78        scription is given in the <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG> manual page.
  79
  80        Depending  on the configuration, these may be actual vari-
  81        ables, or  macros  (see  <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG>)  which  provide
  82        read-only  access  to <EM>curses</EM>'s state.  In either case, ap-
  83        plications should treat them as read-only to avoid confus-
  84        ing the library.
  85
  86    <STRONG>Alternate</STRONG> <STRONG>Character</STRONG> <STRONG>Set</STRONG> <STRONG>Mapping</STRONG>
  87        After  initializing the curses or terminfo interfaces, the
  88        <STRONG>acs_map</STRONG> array holds information used  to  translate  cells
  89        with  the  <STRONG>A_ALTCHARSET</STRONG>  video attribute into line-drawing
  90        characters.
  91
  92        The encoding of the information in this array has  changed
  93        periodically.   Application developers need only know that
  94        it is used for the "ACS_" constants in &lt;curses.h&gt;.
  95
  96        The comparable data for the wide-character  library  is  a
  97        private variable.
  98
  99    <STRONG>Current</STRONG> <STRONG>Terminal</STRONG> <STRONG>Data</STRONG>
 100        After  initializing the curses or terminfo interfaces, the
 101        <STRONG>cur_term</STRONG> contains data describing  the  current  terminal.
 102        This variable is also set as a side-effect of <STRONG><A HREF="set_term.3x.html">set_term(3x)</A></STRONG>
 103        and <STRONG><A HREF="delscreen.3x.html">delscreen(3x)</A></STRONG>.
 104
 105        It is possible to save a value of <STRONG>cur_term</STRONG> for  subsequent
 106        use  as  a  parameter  to  <STRONG>set_term</STRONG>, for switching between
 107        screens.  Alternatively, one can  save  the  return  value
 108        from <STRONG>newterm</STRONG> or <STRONG>setupterm</STRONG> to reuse in <STRONG>set_term</STRONG>.
 109
 110    <STRONG>Terminfo</STRONG> <STRONG>Names</STRONG>
 111        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
 112        the long and short names of terminfo capabilities, as well
 113        as  the  corresponding  names  for  termcap  capabilities.
 114        These are available  to  other  applications,  though  the
 115        hash-tables are not available.
 116
 117        The  long  terminfo  capability  names  use a "l" (ell) in
 118        their names: boolfnames numfnames strfnames
 119
 120        These are the short names for terminfo capabilities: bool-
 121        names, numnames, and strnames.
 122
 123        These  are  the  corresponding  names used for termcap de-
 124        scriptions: boolcodes, numcodes, and strcodes.
 125
 126    <STRONG>Terminal</STRONG> <STRONG>Type</STRONG>
 127        On initialization of the curses  or  terminfo  interfaces,
 128        <STRONG>setupterm</STRONG> copies the terminal name to the array <STRONG>ttytype</STRONG>.
 129
 130
 131 </PRE>
 132 <H2>NOTES</H2><PRE>
 133        The  low-level terminfo interface is initialized using <STRONG>se-</STRONG>
 134        <STRONG><A HREF="setupterm.3x.html">tupterm(3x)</A></STRONG>.  The upper-level curses  interface  uses  the
 135        low-level terminfo interface, internally.
 136
 137
 138 </PRE>
 139 <H2>PORTABILITY</H2><PRE>
 140        X/Open  Curses  does  not describe any of these except for
 141        <STRONG>cur_term</STRONG>.  (The inclusion of <STRONG>cur_term</STRONG>  appears  to  be  an
 142        oversight, since other comparable low-level information is
 143        omitted by X/Open).
 144
 145        Other implementations may have comparable variables.  Some
 146        implementations  provide the variables in their libraries,
 147        but omit them from the header files.
 148
 149
 150 </PRE>
 151 <H2>SEE ALSO</H2><PRE>
 152        <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>
 153        <STRONG><A HREF="terminfo.3x.html">fo(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
 154
 155
 156
 157                                                      <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>
 158 </PRE>
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