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trace(3NCURSES) trace(3NCURSES)
NAME
_tracef, _tracedump, _traceattr, _traceattr2, _nc_tracebits,
_tracechar, _tracechtype, _tracechtype2, _tracemouse, trace - curses
debugging routines
SYNOPSIS
#include <curses.h>
void _tracef(const char *format, ...);
void _tracedump(const char *label, WINDOW *win);
char *_traceattr(attr_t attr);
char *_traceattr2(int buffer, chtype ch);
char *_nc_tracebits(void);
char *_tracechar(const unsigned char ch);
char *_tracechtype(chtype ch);
char *_tracechtype2(int buffer, chtype ch);
char *_tracemouse(const MEVENT *event);
void trace(const unsigned int param);
DESCRIPTION
The trace 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 libncurses_g.a,
but may be compiled into any model (shared, static, profile) by defin-
ing the symbol TRACE.
The principal parts of this interface are the trace routine which se-
lectively enables different tracing features, and the _tracef routine
which writes formatted data to the trace file.
Calling trace with a nonzero parameter opens the file trace in the cur-
rent directory for output. The parameter is formed by OR'ing values
from the list of TRACE_xxx definitions in <curses.h>. 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 refresh.
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 addch.
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 trace parameter is
nonzero. Some features overlap. The specific names are used as a
guideline.
RETURN VALUE
Routines which return a value are designed to be used as parameters to
the _tracef routine.
PORTABILITY
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.
SEE ALSO
ncurses(3NCURSES).
trace(3NCURSES)
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Sat Sep 8 16:37:31 GMT 2007
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