curs_trace(3X)curs_trace(3X)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 com-
piled into any model (shared, static, profile) by defining
the symbol TRACE.
The principal parts of this interface are the trace rou-
tine which selectively 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 current directory for output. The parameter
is formed by OR'ing values from the list of TRACE_xxx def-
initions 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 ALSOcurses(3X).
curs_trace(3X)
