+ If ncurses is built without tracing, none of the latter are produced,
+ and fewer diagnostics are provided by the command-line utilities.
+
+
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+ Routines which return a value are designed to be used as parameters to
+ the <STRONG>_tracef</STRONG> routine.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ 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.
+
+ A few functions are not provided when symbol versioning is used:
+
+ _nc_tracebits, _tracedump, _tracemouse
+
+
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>