ncurses 6.0 - patch 20161015
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+  * @Id: curs_trace.3x,v 1.14 2016/10/15 17:26:09 tom Exp @
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+<H1 class="no-header">curs_trace 3x</H1>
 <PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
+<STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>                                           <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>
 
-</PRE>
-<H2>NAME</H2><PRE>
-       <B>_tracef</B>,      <B>_tracedump</B>,     <B>_traceattr</B>,     <B>_traceattr2</B>,
-       <B>_nc_tracebits</B>,  <B>_tracechar</B>,  <B>_tracechtype</B>,  <B>_tracechtype2</B>,
-       <B>_tracemouse</B>, <B>trace</B> - <B>curses</B> debugging routines
 
 
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
-       <B>#include</B> <B>&lt;curses.h&gt;</B>
-       <B>void</B> <B>_tracef(const</B> <B>char</B> <B>*format,</B> <B>...);</B>
-       <B>void</B> <B>_tracedump(const</B> <B>char</B> <B>*label,</B> <B>WINDOW</B> <B>*win);</B>
-       <B>char</B> <B>*_traceattr(attr_t</B> <B>attr);</B>
-       <B>char</B> <B>*_traceattr2(int</B> <B>buffer,</B> <B>chtype</B> <B>ch);</B>
-       <B>char</B> <B>*_nc_tracebits(void);</B>
-       <B>char</B> <B>*_tracechar(const</B> <B>unsigned</B> <B>char</B> <B>ch);</B>
-       <B>char</B> <B>*_tracechtype(chtype</B> <B>ch);</B>
-       <B>char</B> <B>*_tracechtype2(int</B> <B>buffer,</B> <B>chtype</B> <B>ch);</B>
-       <B>char</B> <B>*_tracemouse(const</B> <B>MEVENT</B> <B>*event);</B>
-       <B>void</B> <B>trace(const</B> <B>unsigned</B> <B>int</B> <B>param);</B>
 
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+       <STRONG>_tracef</STRONG>, <STRONG>_tracedump</STRONG>, <STRONG>_traceattr</STRONG>, <STRONG>_traceattr2</STRONG>,
+       <STRONG>_nc_tracebits</STRONG>, <STRONG>_tracecchar_t</STRONG>, <STRONG>_tracecchar_t2</STRONG>, <STRONG>_tracechar</STRONG>,
+       <STRONG>_tracechtype</STRONG>, <STRONG>_tracechtype2</STRONG>, <STRONG>_tracemouse</STRONG>, <STRONG>trace</STRONG> - <STRONG>curses</STRONG>
+       debugging routines
 
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
-       The  <B>trace</B>  routines  are  used  for debugging the ncurses
-       libraries, as well as applications which use  the  ncurses
-       libraries.   These  functions  are normally available only
-       with the debugging library <I>libncurses</I><B>_</B><I>g.a</I>, but may be com-
-       piled into any model (shared, static, profile) by defining
-       the symbol <B>TRACE</B>.
-
-       The principal parts of this interface are the  <B>trace</B>  rou-
-       tine which selectively enables different tracing features,
-       and the <B>_tracef</B> routine which writes formatted data to the
-       <I>trace</I> file.
-
-       Calling  <B>trace</B>  with  a  nonzero  parameter opens the file
-       <B>trace</B> in the current directory for output.  The  parameter
-       is formed by OR'ing values from the list of <B>TRACE_</B><I>xxx</I> def-
-       initions in <B>&lt;curses.h&gt;</B>.  These include:
-
-       TRACE_DISABLE
+
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
+       <STRONG>#include</STRONG> <STRONG>&lt;curses.h&gt;</STRONG>
+
+       <STRONG>void</STRONG> <STRONG>_tracef(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>format</EM><STRONG>,</STRONG> <STRONG>...);</STRONG>
+       <STRONG>void</STRONG> <STRONG>_tracedump(const</STRONG> <STRONG>char</STRONG> <STRONG>*</STRONG><EM>label</EM><STRONG>,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*_traceattr(attr_t</STRONG> <EM>attr</EM><STRONG>);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*_traceattr2(int</STRONG> <EM>buffer</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*_nc_tracebits(void);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>_tracecchar_t(const</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>string</EM><STRONG>);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*</STRONG> <STRONG>_tracecchar_t2(int</STRONG> <EM>buffer</EM><STRONG>,</STRONG> <STRONG>const</STRONG> <STRONG>cchar_t</STRONG> <STRONG>*</STRONG><EM>string</EM><STRONG>);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*_tracechar(int</STRONG> <EM>ch</EM><STRONG>);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*_tracechtype(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*_tracechtype2(int</STRONG> <EM>buffer</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG>
+       <STRONG>char</STRONG> <STRONG>*_tracemouse(const</STRONG> <STRONG>MEVENT</STRONG> <STRONG>*</STRONG><EM>event</EM><STRONG>);</STRONG>
+       <STRONG>void</STRONG> <STRONG>trace(const</STRONG> <STRONG>unsigned</STRONG> <STRONG>int</STRONG> <EM>param</EM><STRONG>);</STRONG>
+
+
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+       The <STRONG>trace</STRONG> routines are used for debugging the ncurses  li-
+       braries, as well as applications which use the ncurses li-
+       braries.  These functions are normally available only with
+       the  debugging  library  e.g.,  <EM>libncurses</EM><STRONG>_</STRONG><EM>g.a</EM>, but may be
+       compiled into  any  model  (shared,  static,  profile)  by
+       defining  the  symbol <STRONG>TRACE</STRONG>.  Additionally, some functions
+       are only available with the  wide-character  configuration
+       of the libraries.
+
+       The principal parts of this interface are
+
+       <STRONG>o</STRONG>   <STRONG>trace</STRONG>,  which  selectively  enables  different tracing
+           features, and
+
+       <STRONG>o</STRONG>   <STRONG>_tracef</STRONG>, which writes  formatted  data  to  the  <EM>trace</EM>
+           file.
+
+       Calling  <STRONG>trace</STRONG>  with  a  nonzero  parameter opens the file
+       <STRONG>trace</STRONG> in the current directory for output.  The  parameter
+       is formed by OR'ing values from the list of <STRONG>TRACE_</STRONG><EM>xxx</EM> def-
+       initions in <STRONG>&lt;curses.h&gt;</STRONG>.  These include:
+
+       <STRONG>TRACE_DISABLE</STRONG>
             turn off tracing.
 
-       TRACE_TIMES
+       <STRONG>TRACE_TIMES</STRONG>
             trace user and system times of updates.
 
-       TRACE_TPUTS
-            trace tputs calls.
+       <STRONG>TRACE_TPUTS</STRONG>
+            trace <STRONG>tputs</STRONG> calls.
 
-       TRACE_UPDATE
+       <STRONG>TRACE_UPDATE</STRONG>
             trace update actions, old &amp; new screens.
 
-       TRACE_MOVE
+       <STRONG>TRACE_MOVE</STRONG>
             trace cursor movement and scrolling.
 
-       TRACE_CHARPUT
+       <STRONG>TRACE_CHARPUT</STRONG>
             trace all character outputs.
 
-       TRACE_ORDINARY
+       <STRONG>TRACE_ORDINARY</STRONG>
             trace all update actions.  The  old  and  new  screen
-            contents  are  written  to  the  trace  file for each
-            refresh.
+            contents  are  written to the trace file for each re-
+            fresh.
 
-       TRACE_CALLS
+       <STRONG>TRACE_CALLS</STRONG>
             trace all curses calls.  The parameters for each call
             are traced, as well as return values.
 
-       TRACE_VIRTPUT
-            trace virtual character puts, i.e., calls to <B>addch</B>.
+       <STRONG>TRACE_VIRTPUT</STRONG>
+            trace virtual character puts, i.e., calls to <STRONG>addch</STRONG>.
 
-       TRACE_IEVENT
+       <STRONG>TRACE_IEVENT</STRONG>
             trace low-level input processing, including timeouts.
 
-       TRACE_BITS
+       <STRONG>TRACE_BITS</STRONG>
             trace state of TTY control bits.
 
-       TRACE_ICALLS
+       <STRONG>TRACE_ICALLS</STRONG>
             trace internal/nested calls.
 
-       TRACE_CCALLS
+       <STRONG>TRACE_CCALLS</STRONG>
             trace per-character calls.
 
-       TRACE_DATABASE
+       <STRONG>TRACE_DATABASE</STRONG>
             trace read/write of terminfo/termcap data.
 
-       TRACE_ATTRS
+       <STRONG>TRACE_ATTRS</STRONG>
             trace changes to video attributes and colors.
 
-       TRACE_MAXIMUM
-            maximum trace level,  enables  all  of  the  separate
+       <STRONG>TRACE_MAXIMUM</STRONG>
+            maximum  trace  level,  enables  all  of the separate
             trace features.
 
-            Some  tracing features are enabled whenever the <B>trace</B>
-            parameter is nonzero.  Some  features  overlap.   The
-            specific names are used as a guideline.
+       Some tracing features are enabled whenever the  <STRONG>trace</STRONG>  pa-
+       rameter  is nonzero.  Some features overlap.  The specific
+       names are used as a guideline.
 
+       The other functions either return a pointer to  a  string-
+       area  (allocated by the corresponding function), or return
+       no value (such as <STRONG>_tracedump</STRONG>, which implements the  screen
+       dump  for <STRONG>TRACE_UPDATE</STRONG>).  The caller should not free these
+       strings, since the  allocation  is  reused  on  successive
+       calls.  To work around the problem of a single string-area
+       per function, some use a buffer-number parameter,  telling
+       the library to allocate additional string-areas.
 
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
-       Routines  which  return a value are designed to be used as
-       parameters to the <B>_tracef</B> routine.
+       These  functions check the <STRONG>NCURSES_TRACE</STRONG> environment vari-
+       able, to set the tracing feature as if <STRONG>trace</STRONG> was called:
 
+              filter, initscr, new_prescr, newterm, nofilter,
+              restartterm, ripoffline, setupterm, slk_init, tge-
+              tent, use_env, use_extended_names, use_tioctl
 
-</PRE>
-<H2>PORTABILITY</H2><PRE>
-       These functions are not part of the XSI  interface.   Some
-       other  curses  implementations  are known to have similar,
-       undocumented features, but they are  not  compatible  with
-       ncurses.
 
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+       Routines which return a value are designed to be  used  as
+       parameters to the <STRONG>_tracef</STRONG> routine.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+       These  functions  are not part of the XSI interface.  Some
+       other curses implementations are known  to  have  similar,
+       undocumented  features,  but  they are not compatible with
+       ncurses.
 
-</PRE>
-<H2>SEE ALSO</H2><PRE>
-       <B><A HREF="ncurses.3x.html">curses(3x)</A></B>.
 
+</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_trace.3x.html">curs_trace(3x)</A></STRONG>
 </PRE>
-<HR>
-<ADDRESS>
-Man(1) output converted with
-<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
-</ADDRESS>
+<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></li>
+<li><a href="#h2-RETURN-VALUE">RETURN VALUE</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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