+ delete/insert unless <STRONG>idlok(...,</STRONG> <STRONG>TRUE)</STRONG> has been set on the current
+ window.
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ These functions are described in X/Open Curses, Issue 4. The standard
+ specifies that they return <STRONG>ERR</STRONG> on failure, but specifies no error
+ conditions.