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- * @Id: curs_kernel.3x,v 1.47 2023/10/07 21:19:07 tom Exp @
+ * @Id: curs_kernel.3x,v 1.49 2023/10/14 22:03:52 tom Exp @
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-<H1 class="no-header">curs_kernel 3x 2023-10-07 ncurses 6.4 Library calls</H1>
+<H1 class="no-header">curs_kernel 3x 2023-10-14 ncurses 6.4 Library calls</H1>
<PRE>
<STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
</PRE><H3><a name="h3-napms">napms</a></H3><PRE>
- The <STRONG>napms</STRONG> routine is used to sleep for <EM>ms</EM> milliseconds.
+ The <STRONG>napms</STRONG> routine is used to sleep for <EM>ms</EM> milliseconds. If the value
+ of <EM>ms</EM> exceeds 30,000 (thirty seconds), it is capped at that value.
</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
Except for <STRONG>curs_set</STRONG>, these routines always return <STRONG>OK</STRONG>.
- <STRONG>curs_set</STRONG> returns the previous cursor state, or <STRONG>ERR</STRONG> if the requested
+ <STRONG>curs_set</STRONG> returns the previous cursor state, or <STRONG>ERR</STRONG> if the requested
<EM>visibility</EM> is not supported.
X/Open defines no error conditions. In this implementation
Note that <STRONG>getsyx</STRONG> is a macro, so <STRONG>&</STRONG> is not necessary before the variables
<EM>y</EM> and <EM>x</EM>.
- Older SVr4 man pages warn that the return value of <STRONG>curs_set</STRONG> "is
+ Older SVr4 man pages warn that the return value of <STRONG>curs_set</STRONG> "is
currently incorrect". This implementation gets it right, but it may be
unwise to count on the correctness of the return value anywhere else.
Both ncurses and SVr4 will call <STRONG>curs_set</STRONG> in <STRONG>endwin</STRONG> if <STRONG>curs_set</STRONG> has been
- called to make the cursor other than normal, i.e., either invisible or
- very visible. There is no way for ncurses to determine the initial
+ called to make the cursor other than normal, i.e., either invisible or
+ very visible. There is no way for ncurses to determine the initial
cursor state to restore that.
</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
The <EM>virtual</EM> <EM>screen</EM> functions <STRONG>setsyx</STRONG> and <STRONG>getsyx</STRONG> are not described in the
- XSI Curses standard, Issue 4. All other functions are as described in
+ XSI Curses standard, Issue 4. All other functions are as described in
XSI Curses.
- The SVr4 documentation describes <STRONG>setsyx</STRONG> and <STRONG>getsyx</STRONG> as having return
- type int. This is misleading, as they are macros with no documented
+ The SVr4 documentation describes <STRONG>setsyx</STRONG> and <STRONG>getsyx</STRONG> as having return
+ type int. This is misleading, as they are macros with no documented
semantics for the return value.
+ If interrupted, ncurses restarts <STRONG>napms</STRONG>. That, and the limitation to 30
+ seconds, are different from other implementations.
+
</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
<STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>, <STRONG><A HREF="curs_outopts.3x.html">curs_outopts(3x)</A></STRONG>, <STRONG><A HREF="curs_refresh.3x.html">curs_refresh(3x)</A></STRONG>,
-ncurses 6.4 2023-10-
07 <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
+ncurses 6.4 2023-10-
14 <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>
</PRE>
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