- Likewise, the <STRONG>meta</STRONG> function allows the caller to change
- the output of <STRONG>keyname</STRONG>, i.e., it determines whether to use
- the `M-' prefix for "meta" keys (codes in the range 128 to
- 255). Both <STRONG>use_legacy_coding</STRONG> and <STRONG>meta</STRONG> succeed only after
- curses is initialized. X/Open Curses does not document
- the treatment of codes 128 to 159. When treating them as
- "meta" keys (or if <STRONG>keyname</STRONG> is called before initializing
- curses), this implementation returns strings "M-^@",
- "M-^A", etc.
+ Likewise, the <STRONG><A HREF="curs_inopts.3x.html">meta(3x)</A></STRONG> function allows the caller to
+ change the output of <STRONG>keyname</STRONG>, i.e., it determines whether
+ to use the "M-" prefix for "meta" keys (codes in the range
+ 128 to 255). Both <STRONG>use_legacy_coding</STRONG> and <STRONG>meta</STRONG> succeed only
+ after curses is initialized. X/Open Curses does not docu-
+ ment the treatment of codes 128 to 159. When treating
+ them as "meta" keys (or if <STRONG>keyname</STRONG> is called before ini-
+ tializing curses), this implementation returns strings
+ "M-^@", "M-^A", etc.
+
+
+</PRE><H3><a name="h3-use_env_use_tioctl">use_env/use_tioctl</a></H3><PRE>
+ If <STRONG>ncurses</STRONG> is configured to provide the sp-functions ex-
+ tension, the state of <STRONG>use_env</STRONG> and <STRONG>use_tioctl</STRONG> may be updat-
+ ed before creating each <EM>screen</EM> rather than once only
+ (<STRONG><A HREF="curs_sp_funcs.3x.html">curs_sp_funcs(3x)</A></STRONG>). This feature of <STRONG>use_env</STRONG> is not pro-
+ vided by other implementation of curses.