curstrace(3X)                                                  curstrace(3X)



NAME
       tracef,    tracedump,    traceattr,    traceattr2,   nctracebits,
       tracechar, tracechtype, tracechtype2, tracemouse,  trace  -  curses
       debugging routines

SYNOPSIS
       ##include <>
       void tracef(const char **format,, ...);;
       void tracedump(const char **label,, WINDOW **win);;
       char **traceattr(attrt attr);;
       char **traceattr2(int buffer,, chtype ch);;
       char **nctracebits(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 libncursesg.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
       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 cur-
       rent directory for output.  The parameter is formed  by  OR'ing  values
       from the list of TRACExxx definitions in <>.  These include:

       TRACEDISABLE
            turn off tracing.

       TRACETIMES
            trace user and system times of updates.

       TRACETPUTS
            trace tputs calls.

       TRACEUPDATE
            trace update actions, old & new screens.

       TRACEMOVE
            trace cursor movement and scrolling.

       TRACECHARPUT
            trace all character outputs.

       TRACEORDINARY
            trace  all  update  actions.   The old and new screen contents are
            written to the trace file for each refresh.

       TRACECALS
            trace all curses calls.  The parameters for each call are  traced,
            as well as return values.

       TRACEVIRTPUT
            trace virtual character puts, i.e., calls to addch.

       TRACEIEVENT
            trace low-level input processing, including timeouts.

       TRACEBITS
            trace state of TY control bits.

       TRACEICALS
            trace internal/nested calls.

       TRACECALS
            trace per-character calls.

       TRACEDATABASE
            trace read/write of terminfo/termcap data.

       TRACEATRS
            trace changes to video attributes and colors.

       TRACEMAXIMUM
            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
       curses(3X).



                                                                curstrace(3X)