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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><!-- **************************************************************************** * Copyright (c) 2000-2002,2005 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * **************************************************************************** * @Id: curs_trace.3x,v 1.7 2005/05/15 17:02:54 tom Exp @--><HTML><HEAD><TITLE>curs_trace 3x</TITLE><link rev=made href="mailto:bug-ncurses@gnu.org"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"></HEAD><BODY><H1>curs_trace 3x</H1><HR><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> <STRONG>_tracef</STRONG>, <STRONG>_tracedump</STRONG>, <STRONG>_traceattr</STRONG>, <STRONG>_traceattr2</STRONG>, <STRONG>_nc_tracebits</STRONG>, <STRONG>_tracechar</STRONG>, <STRONG>_tracechtype</STRONG>, <STRONG>_tracechtype2</STRONG>, <STRONG>_tracemouse</STRONG>, <STRONG>trace</STRONG> - <STRONG>curses</STRONG> debugging routines</PRE><H2>SYNOPSIS</H2><PRE> <STRONG>#include</STRONG> <STRONG><curses.h></STRONG> <STRONG>void</STRONG> <STRONG>_tracef(const</STRONG> <STRONG>char</STRONG> <STRONG>*format,</STRONG> <STRONG>...);</STRONG> <STRONG>void</STRONG> <STRONG>_tracedump(const</STRONG> <STRONG>char</STRONG> <STRONG>*label,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG> <STRONG>char</STRONG> <STRONG>*_traceattr(attr_t</STRONG> <STRONG>attr);</STRONG> <STRONG>char</STRONG> <STRONG>*_traceattr2(int</STRONG> <STRONG>buffer,</STRONG> <STRONG>chtype</STRONG> <STRONG>ch);</STRONG> <STRONG>char</STRONG> <STRONG>*_nc_tracebits(void);</STRONG> <STRONG>char</STRONG> <STRONG>*_tracechar(const</STRONG> <STRONG>unsigned</STRONG> <STRONG>char</STRONG> <STRONG>ch);</STRONG> <STRONG>char</STRONG> <STRONG>*_tracechtype(chtype</STRONG> <STRONG>ch);</STRONG> <STRONG>char</STRONG> <STRONG>*_tracechtype2(int</STRONG> <STRONG>buffer,</STRONG> <STRONG>chtype</STRONG> <STRONG>ch);</STRONG> <STRONG>char</STRONG> <STRONG>*_tracemouse(const</STRONG> <STRONG>MEVENT</STRONG> <STRONG>*event);</STRONG> <STRONG>void</STRONG> <STRONG>trace(const</STRONG> <STRONG>unsigned</STRONG> <STRONG>int</STRONG> <STRONG>param);</STRONG></PRE><H2>DESCRIPTION</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 <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>. The principal parts of this interface are the <STRONG>trace</STRONG> rou- tine which selectively enables different tracing features, and the <STRONG>_tracef</STRONG> routine 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><curses.h></STRONG>. These include: TRACE_DISABLE turn off tracing. TRACE_TIMES trace user and system times of updates. TRACE_TPUTS trace tputs calls. TRACE_UPDATE trace update actions, old & new screens. TRACE_MOVE trace cursor movement and scrolling. TRACE_CHARPUT trace all character outputs. TRACE_ORDINARY trace all update actions. The old and new screen contents are written to the trace file for each re- fresh. TRACE_CALLS 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 <STRONG>addch</STRONG>. TRACE_IEVENT trace low-level input processing, including timeouts. TRACE_BITS trace state of TTY control bits. TRACE_ICALLS trace internal/nested calls. TRACE_CCALLS trace per-character calls. TRACE_DATABASE trace read/write of terminfo/termcap data. TRACE_ATTRS trace changes to video attributes and colors. TRACE_MAXIMUM maximum trace level, enables all of the separate trace features. 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.</PRE><H2>RETURN VALUE</H2><PRE> Routines which return a value are designed to be used as parameters to the <STRONG>_tracef</STRONG> routine.</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>SEE ALSO</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></BODY></HTML>⌨️ 快捷键说明
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