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(int);
       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
       defining the symbol TRACE.

       The principal parts of this interface are the trace routine 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 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 guide-
       line.

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

       curses(3X).

																    curs_trace(3X)