+ maximum trace level, enables all of the separate trace features.
+
+ Some tracing features are enabled whenever the <STRONG>trace</STRONG> parameter is
+ nonzero. Some features overlap. The specific names are used as a
+ guideline.
+
+
+</PRE><H3><a name="h3-Initialization">Initialization</a></H3><PRE>
+ These functions check the <STRONG>NCURSES_TRACE</STRONG> environment variable, to set
+ the tracing feature as if <STRONG>trace</STRONG> was called:
+
+ filter, initscr, new_prescr, newterm, nofilter, restartterm,
+ ripoffline, setupterm, slk_init, tgetent, use_env,
+ use_extended_names, use_tioctl