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30 * @Id: curs_trace.3x,v 1.5 2002/02/16 22:39:52 tom Exp @
34 <TITLE>curs_trace 3x</TITLE>
35 <link rev=made href="mailto:bug-ncurses@gnu.org">
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39 <H1>curs_trace 3x</H1>
42 <!-- Manpage converted by man2html 3.0.1 -->
43 <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG> <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>
50 <STRONG>_tracef</STRONG>, <STRONG>_tracedump</STRONG>, <STRONG>_traceattr</STRONG>, <STRONG>_traceattr2</STRONG>,
51 <STRONG>_nc_tracebits</STRONG>, <STRONG>_tracechar</STRONG>, <STRONG>_tracechtype</STRONG>, <STRONG>_tracechtype2</STRONG>,
52 <STRONG>_tracemouse</STRONG>, <STRONG>trace</STRONG> - <STRONG>curses</STRONG> debugging routines
56 <H2>SYNOPSIS</H2><PRE>
57 <STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
58 <STRONG>void</STRONG> <STRONG>_tracef(const</STRONG> <STRONG>char</STRONG> <STRONG>*format,</STRONG> <STRONG>...);</STRONG>
59 <STRONG>void</STRONG> <STRONG>_tracedump(const</STRONG> <STRONG>char</STRONG> <STRONG>*label,</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win);</STRONG>
60 <STRONG>char</STRONG> <STRONG>*_traceattr(attr_t</STRONG> <STRONG>attr);</STRONG>
61 <STRONG>char</STRONG> <STRONG>*_traceattr2(int</STRONG> <STRONG>buffer,</STRONG> <STRONG>chtype</STRONG> <STRONG>ch);</STRONG>
62 <STRONG>char</STRONG> <STRONG>*_nc_tracebits(void);</STRONG>
63 <STRONG>char</STRONG> <STRONG>*_tracechar(const</STRONG> <STRONG>unsigned</STRONG> <STRONG>char</STRONG> <STRONG>ch);</STRONG>
64 <STRONG>char</STRONG> <STRONG>*_tracechtype(chtype</STRONG> <STRONG>ch);</STRONG>
65 <STRONG>char</STRONG> <STRONG>*_tracechtype2(int</STRONG> <STRONG>buffer,</STRONG> <STRONG>chtype</STRONG> <STRONG>ch);</STRONG>
66 <STRONG>char</STRONG> <STRONG>*_tracemouse(const</STRONG> <STRONG>MEVENT</STRONG> <STRONG>*event);</STRONG>
67 <STRONG>void</STRONG> <STRONG>trace(const</STRONG> <STRONG>unsigned</STRONG> <STRONG>int</STRONG> <STRONG>param);</STRONG>
71 <H2>DESCRIPTION</H2><PRE>
72 The <STRONG>trace</STRONG> routines are used for debugging the ncurses
73 libraries, as well as applications which use the ncurses
74 libraries. These functions are normally available only
75 with the debugging library <EM>libncurses</EM><STRONG>_</STRONG><EM>g.a</EM>, but may be com-
76 piled into any model (shared, static, profile) by defining
77 the symbol <STRONG>TRACE</STRONG>.
79 The principal parts of this interface are the <STRONG>trace</STRONG> rou-
80 tine which selectively enables different tracing features,
81 and the <STRONG>_tracef</STRONG> routine which writes formatted data to the
84 Calling <STRONG>trace</STRONG> with a nonzero parameter opens the file
85 <STRONG>trace</STRONG> in the current directory for output. The parameter
86 is formed by OR'ing values from the list of <STRONG>TRACE_</STRONG><EM>xxx</EM> def-
87 initions in <STRONG><curses.h></STRONG>. These include:
93 trace user and system times of updates.
99 trace update actions, old & new screens.
102 trace cursor movement and scrolling.
105 trace all character outputs.
108 trace all update actions. The old and new screen
109 contents are written to the trace file for each
113 trace all curses calls. The parameters for each call
114 are traced, as well as return values.
117 trace virtual character puts, i.e., calls to <STRONG>addch</STRONG>.
120 trace low-level input processing, including timeouts.
123 trace state of TTY control bits.
126 trace internal/nested calls.
129 trace per-character calls.
132 trace read/write of terminfo/termcap data.
135 trace changes to video attributes and colors.
138 maximum trace level, enables all of the separate
141 Some tracing features are enabled whenever the <STRONG>trace</STRONG>
142 parameter is nonzero. Some features overlap. The
143 specific names are used as a guideline.
147 <H2>RETURN VALUE</H2><PRE>
148 Routines which return a value are designed to be used as
149 parameters to the <STRONG>_tracef</STRONG> routine.
153 <H2>PORTABILITY</H2><PRE>
154 These functions are not part of the XSI interface. Some
155 other curses implementations are known to have similar,
156 undocumented features, but they are not compatible with
161 <H2>SEE ALSO</H2><PRE>
162 <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>.
166 <STRONG><A HREF="curs_trace.3x.html">curs_trace(3x)</A></STRONG>
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