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-<H1>curs_variables 3x</H1>
-<HR>
+<H1 class="no-header">curs_variables 3x</H1>
<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
-<STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG> <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>
+<STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG> <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>
-</PRE>
-<H2>NAME</H2><PRE>
- <STRONG>COLORS</STRONG>, <STRONG>COLOR_PAIRS</STRONG>, <STRONG>COLS</STRONG>, <STRONG>ESCDELAY</STRONG>, <STRONG>LINES</STRONG>, <STRONG>TABSIZE</STRONG>,
- <STRONG>curscr</STRONG>, <STRONG>newscr</STRONG>, <STRONG>stdscr</STRONG> - <STRONG>curses</STRONG> global variables
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+ <STRONG>COLORS</STRONG>, <STRONG>COLOR_PAIRS</STRONG>, <STRONG>COLS</STRONG>, <STRONG>ESCDELAY</STRONG>, <STRONG>LINES</STRONG>, <STRONG>TABSIZE</STRONG>, <STRONG>curscr</STRONG>, <STRONG>newscr</STRONG>,
+ <STRONG>stdscr</STRONG> - <STRONG>curses</STRONG> global variables
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
<STRONG>int</STRONG> <STRONG>COLOR_PAIRS;</STRONG>
<STRONG>WINDOW</STRONG> <STRONG>*</STRONG> <STRONG>stdscr;</STRONG>
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
- This page summarizes variables provided by the <STRONG>curses</STRONG> li-
- brary. A more complete description is given in the <STRONG>curs-</STRONG>
- <STRONG><A HREF="ncurses.3x.html">es(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> and
- <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>) which provide read-only access to <EM>curs-</EM>
- <EM>es</EM>'s state. In either case, applications should treat
- them as read-only to avoid confusing the library.
-
- <STRONG>COLOR_PAIRS</STRONG>
- After initializing curses, this variable contains the num-
- ber of color pairs which the terminal can support. Usual-
- ly the number of color pairs will be the product <STRONG>COL-</STRONG>
- <STRONG>ORS</STRONG>*<STRONG>COLORS</STRONG>, however this is not always true:
-
- <STRONG>o</STRONG> a few terminals use HLS colors, which do not follow
- this rule
-
- <STRONG>o</STRONG> terminals supporting a large number of colors are lim-
- ited by the number of color pairs that can be repre-
- sented in a <EM>signed</EM> <EM>short</EM> value.
-
- <STRONG>COLORS</STRONG>
- After initializing curses, this variable contains the num-
- ber of colors which the terminal can support.
-
- <STRONG>COLS</STRONG>
- After initializing curses, this variable contains the
- width of the screen, i.e., the number of columns.
-
- <STRONG>ESCDELAY</STRONG>
- This variable holds the number of milliseconds to wait af-
- ter reading an escape character, to distinguish between an
- individual escape character entered on the keyboard from
- escape sequences sent by cursor- and function-keys (see
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>.
-
- <STRONG>LINES</STRONG>
- After initializing curses, this variable contains the
- height of the screen, i.e., the number of lines.
-
- <STRONG>TABSIZE</STRONG>
- This variable holds the number of columns used by the
- <EM>curses</EM> library when converting a tab character to spaces
- as it adds the tab to a window (see <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>.
-
- <STRONG>The</STRONG> <STRONG>Current</STRONG> <STRONG>Screen</STRONG>
- This implementation of curses uses a special window <STRONG>curscr</STRONG>
- to record its updates to the terminal screen.
-
- <STRONG>The</STRONG> <STRONG>New</STRONG> <STRONG>Screen</STRONG>
- This implementation of curses uses a special window <STRONG>newscr</STRONG>
- to hold updates to the terminal screen before applying
- them to <STRONG>curscr</STRONG>.
-
- <STRONG>The</STRONG> <STRONG>Standard</STRONG> <STRONG>Screen</STRONG>
- Upon initializing curses, a default window called <STRONG>stdscr</STRONG>,
- which is the size of the terminal screen, is created.
- Many curses functions use this window.
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+ This page summarizes variables provided by the <STRONG>curses</STRONG> library. A more
+ complete description is given in the <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> manual page.
+ Depending on the configuration, these may be actual variables, or
+ macros (see <STRONG><A HREF="curs_threads.3x.html">curs_threads(3x)</A></STRONG> and <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(3x)</A></STRONG>) which provide read-
+ only access to <EM>curses</EM>'s state. In either case, applications should
+ treat them as read-only to avoid confusing the library.
-</PRE>
-<H2>NOTES</H2><PRE>
- The curses library is initialized using either
- <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>, or <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>.
- If <STRONG>curses</STRONG> is configured to use separate curses/terminfo
- libraries, most of these variables reside in the curses
- library.
+</PRE><H3><a name="h3-COLOR_PAIRS">COLOR_PAIRS</a></H3><PRE>
+ After initializing curses, this variable contains the number of color
+ pairs which the terminal can support. Usually the number of color
+ pairs will be the product <STRONG>COLORS</STRONG>*<STRONG>COLORS</STRONG>, however this is not always
+ true:
+ <STRONG>o</STRONG> a few terminals use HLS colors, which do not follow this rule
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- ESCDELAY and TABSIZE are extensions, not provided in most
- other implementations of curses.
+ <STRONG>o</STRONG> terminals supporting a large number of colors are limited by the
+ number of color pairs that can be represented in a <EM>signed</EM> <EM>short</EM>
+ value.
-</PRE>
-<H2>SEE ALSO</H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_opaque.3x.html">curs_opaque(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="term_variables.3x.html">term_variables(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
+</PRE><H3><a name="h3-COLORS">COLORS</a></H3><PRE>
+ After initializing curses, this variable contains the number of colors
+ which the terminal can support.
+
+
+</PRE><H3><a name="h3-COLS">COLS</a></H3><PRE>
+ After initializing curses, this variable contains the width of the
+ screen, i.e., the number of columns.
+
+
+</PRE><H3><a name="h3-ESCDELAY">ESCDELAY</a></H3><PRE>
+ This variable holds the number of milliseconds to wait after reading an
+ escape character, to distinguish between an individual escape character
+ entered on the keyboard from escape sequences sent by cursor- and func-
+ tion-keys (see <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>).
+
+
+</PRE><H3><a name="h3-LINES">LINES</a></H3><PRE>
+ After initializing curses, this variable contains the height of the
+ screen, i.e., the number of lines.
+
+
+</PRE><H3><a name="h3-TABSIZE">TABSIZE</a></H3><PRE>
+ This variable holds the number of columns used by the <EM>curses</EM> library
+ when converting a tab character to spaces as it adds the tab to a win-
+ dow (see <STRONG><A HREF="curs_addch.3x.html">curs_addch(3x)</A></STRONG>.
+
+
+</PRE><H3><a name="h3-The-Current-Screen">The Current Screen</a></H3><PRE>
+ This implementation of curses uses a special window <STRONG>curscr</STRONG> to record
+ its updates to the terminal screen.
+
+ This is referred to as the "physical screen" in the <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>
+ and <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG> manual pages.
+
+
+</PRE><H3><a name="h3-The-New-Screen">The New Screen</a></H3><PRE>
+ This implementation of curses uses a special window <STRONG>newscr</STRONG> to hold up-
+ dates to the terminal screen before applying them to <STRONG>curscr</STRONG>.
+
+ This is referred to as the "virtual screen" in the <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>,
+ <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG> and <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG> manual pages.
+
+
+</PRE><H3><a name="h3-The-Standard-Screen">The Standard Screen</a></H3><PRE>
+ Upon initializing curses, a default window called <STRONG>stdscr</STRONG>, which is the
+ size of the terminal screen, is created. Many curses functions use
+ this window.
+
+
+</PRE><H2><a name="h2-NOTES">NOTES</a></H2><PRE>
+ The curses library is initialized using either <STRONG><A HREF="curs_initscr.3x.html">initscr(3x)</A></STRONG>, or
+ <STRONG><A HREF="curs_initscr.3x.html">newterm(3x)</A></STRONG>.
+
+ If <STRONG>curses</STRONG> is configured to use separate curses/terminfo libraries, most
+ of these variables reside in the curses library.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ <STRONG>TABSIZE</STRONG> is a feature of SVr4 curses which is not documented by X/Open
+ curses.
+
+ <STRONG>o</STRONG> In SVr4 curses, <STRONG>TABSIZE</STRONG> is initially set from the terminal descrip-
+ tion's <STRONG>init_tabs</STRONG> capability. After that, it can be altered by the
+ applications using SVr4 curses.
+
+ SVr4 curses uses the current value of <STRONG>TABSIZE</STRONG> to compute the posi-
+ tion of tabstops for updating both the virtual screen with <STRONG>add-</STRONG>
+ <STRONG><A HREF="addch.3x.html">ch(3x)</A></STRONG> as well as the physical screen with <STRONG><A HREF="curs_terminfo.3x.html">mvcur(3x)</A></STRONG>.
+
+ <STRONG>o</STRONG> This implementation uses the current value of <STRONG>TABSIZE</STRONG> only for up-
+ dating the virtual screen. It uses the terminal description's <STRONG>it</STRONG>
+ (<STRONG>init_tabs</STRONG>) capability for computing hardware tabs (i.e., tab stops
+ on the physical screen).
+
+ <STRONG>o</STRONG> Other implementations differ. For instance, NetBSD curses allows
+ <STRONG>TABSIZE</STRONG> to be set through an environment variable. This implemen-
+ tation does not.
+
+ NetBSD curses does not support hardware tabs; it uses the <STRONG>init_tabs</STRONG>
+ capability and the <STRONG>TABSIZE</STRONG> variable only for updating the virtual
+ screen.
+
+ <STRONG>ESCDELAY</STRONG> is an extension in AIX curses:
+
+ <STRONG>o</STRONG> In AIX, the units for <STRONG>ESCDELAY</STRONG> are <EM>fifths</EM> of a millisecond.
+
+ <STRONG>o</STRONG> The default value for AIX's <STRONG>ESCDELAY</STRONG> is 0.1 seconds.
+
+ <STRONG>o</STRONG> AIX also enforces a limit of 10,000 seconds for <STRONG>ESCDELAY</STRONG>; this im-
+ plementation currently has no upper limit.
+
+ This implementation has long used <STRONG>ESCDELAY</STRONG> with units of milliseconds,
+ making it impossible to be completely compatible with AIX. Likewise,
+ most users have either decided to override the value, or rely upon its
+ default value.
+
+
+</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_opaque.3x.html">curs_opaque(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="term_variables.3x.html">term_variables(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
- <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>
+
<STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>
</PRE>
-<HR>
-Man(1) output converted with <a href="http://invisible-island.net/scripts/readme.html#others_scripts">man2html</a>
+<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-COLOR_PAIRS">COLOR_PAIRS</a></li>
+<li><a href="#h3-COLORS">COLORS</a></li>
+<li><a href="#h3-COLS">COLS</a></li>
+<li><a href="#h3-ESCDELAY">ESCDELAY</a></li>
+<li><a href="#h3-LINES">LINES</a></li>
+<li><a href="#h3-TABSIZE">TABSIZE</a></li>
+<li><a href="#h3-The-Current-Screen">The Current Screen</a></li>
+<li><a href="#h3-The-New-Screen">The New Screen</a></li>
+<li><a href="#h3-The-Standard-Screen">The Standard Screen</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>
+</div>
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