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

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  41 <H1 class="no-header">term_variables 3x</H1>
  42 <PRE>
  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><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
  52
  53
  54 </PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
  55        <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
  56        <STRONG>#include</STRONG> <STRONG>&lt;term.h&gt;</STRONG>
  57
  58        <STRONG>chtype</STRONG> <STRONG>acs_map[];</STRONG>
  59
  60        <STRONG>SCREEN</STRONG> <STRONG>*</STRONG> <STRONG>SP;</STRONG>
  61
  62        <STRONG>TERMINAL</STRONG> <STRONG>*</STRONG> <STRONG>cur_term;</STRONG>
  63
  64        <STRONG>char</STRONG> <STRONG>ttytype[];</STRONG>
  65
  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>
  69
  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>
  73
  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>
  77
  78
  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.
  83
  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-
  88        ing the library.
  89
  90
  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
  95        characters.
  96
  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 &lt;curses.h&gt;.
 100
 101        The comparable data for the wide-character  library  is  a
 102        private variable.
 103
 104
 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">set_term(3x)</A></STRONG>
 109        and <STRONG><A HREF="curs_initscr.3x.html">delscreen(3x)</A></STRONG>.
 110
 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><A HREF="curs_terminfo.3x.html">setupterm(3x)</A></STRONG> to reuse in <STRONG>set_term</STRONG>.
 115
 116
 117 </PRE><H3><a name="h3-Terminfo-Names">Terminfo Names</a></H3><PRE>
 118        The  <STRONG><A HREF="tic.1m.html">tic(1)</A></STRONG>  and <STRONG><A HREF="infocmp.1m.html">infocmp(1)</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
 123        not available.
 124
 125        The long terminfo capability names  use  a  "l"  (ell)  in
 126        their names: <STRONG>boolfnames</STRONG>, <STRONG>numfnames</STRONG>, and <STRONG>strfnames</STRONG>.
 127
 128        These are the short names for terminfo capabilities: <STRONG>bool-</STRONG>
 129        <STRONG>names</STRONG>, <STRONG>numnames</STRONG>, and <STRONG>strnames</STRONG>.
 130
 131        These are the corresponding names  used  for  termcap  de-
 132        scriptions: <STRONG>boolcodes</STRONG>, <STRONG>numcodes</STRONG>, and <STRONG>strcodes</STRONG>.
 133
 134
 135 </PRE><H3><a name="h3-Terminal-Type">Terminal Type</a></H3><PRE>
 136        On  initialization  of  the curses or terminfo interfaces,
 137        <STRONG><A HREF="curs_terminfo.3x.html">setupterm(3x)</A></STRONG> copies the terminal name to the  array  <STRONG>tty-</STRONG>
 138        <STRONG>type</STRONG>.
 139
 140
 141 </PRE><H3><a name="h3-Terminfo-Names">Terminfo Names</a></H3><PRE>
 142        In addition to the variables, <STRONG>&lt;term.h&gt;</STRONG> also defines a sym-
 143        bol for each terminfo capability <EM>long</EM> <EM>name</EM>.  These are  in
 144        terms of the symbol <STRONG>CUR</STRONG>, which is defined
 145
 146        #define CUR cur_term-&gt;type.
 147
 148        These symbols provide a faster method of accessing termin-
 149        fo capabilities than using <STRONG><A HREF="curs_terminfo.3x.html">tigetstr(3x)</A></STRONG>, etc.
 150
 151
 152 </PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
 153        The low-level  terminfo  interface  is  initialized  using
 154        <STRONG><A HREF="curs_terminfo.3x.html">setupterm(3x)</A></STRONG>.   The upper-level curses interface uses the
 155        low-level terminfo interface, internally.
 156
 157
 158 </PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
 159        X/Open Curses does not describe any of  these  except  for
 160        <STRONG>cur_term</STRONG>.   (The  inclusion  of  <STRONG>cur_term</STRONG> appears to be an
 161        oversight, since other comparable low-level information is
 162        omitted by X/Open).
 163
 164        Other implementations may have comparable variables.  Some
 165        implementations provide the variables in their  libraries,
 166        but omit them from the header files.
 167
 168        All  implementations which provide terminfo interfaces add
 169        definitions as described in the  <STRONG>Terminfo</STRONG>  <STRONG>Names</STRONG>  section.
 170        Most,  but  not all, base the definition upon the <STRONG>cur_term</STRONG>
 171        variable.
 172
 173
 174 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
 175        <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>,
 176        <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
 177
 178
 179
 180                                                      <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>
 181 </PRE>
 182 <div class="nav">
 183 <ul>
 184 <li><a href="#h2-NAME">NAME</a></li>
 185 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
 186 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
 187 <ul>
 188 <li><a href="#h3-Alternate-Character-Set-Mapping">Alternate Character Set Mapping</a></li>
 189 <li><a href="#h3-Current-Terminal-Data">Current Terminal Data</a></li>
 190 <li><a href="#h3-Terminfo-Names">Terminfo Names</a></li>
 191 <li><a href="#h3-Terminal-Type">Terminal Type</a></li>
 192 <li><a href="#h3-Terminfo-Names">Terminfo Names</a></li>
 193 </ul>
 194 </li>
 195 <li><a href="#h2-NOTES">NOTES</a></li>
 196 <li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
 197 <li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
 198 </ul>
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