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<HTML><HEAD><TITLE>Tcl Built-In Commands - fblocked manual page</TITLE></HEAD><BODY>
<H3><A NAME="M2">NAME</A></H3>
fblocked - Test whether the last input operation exhausted all available input
<H3><A NAME="M3">SYNOPSIS</A></H3>
<B>fblocked </B><I>channelId</I><BR>
<H3><A NAME="M4">DESCRIPTION</A></H3>
The <B>fblocked</B> command returns 1 if the most recent input operation
on <I>channelId</I> returned less information than requested because all
available input was exhausted.
For example, if <B><A HREF="../TkCmd/gets.htm">gets</A></B> is invoked when there are only three
characters available for input and no end-of-line sequence, <B><A HREF="../TkCmd/gets.htm">gets</A></B>
returns an empty string and a subsequent call to <B>fblocked</B> will
return 1.
<P>
<H3><A NAME="M5">SEE ALSO</A></H3>
<B><A HREF="../TkCmd/gets.htm">gets</A></B>, <B><A HREF="../TkCmd/open.htm">open</A></B>, <B><A HREF="../TkCmd/read.htm">read</A></B>
<H3><A NAME="M6">KEYWORDS</A></H3>
<A href="../Keywords/B.htm#blocking">blocking</A>, <A href="../Keywords/N.htm#nonblocking">nonblocking</A>
<HR><PRE>
<A HREF="../copyright.htm">Copyright</A> &#169; 1996 Sun Microsystems, Inc.
<A HREF="../copyright.htm">Copyright</A> &#169; 1995-1997 Roger E. Critchlow Jr.</PRE>
</BODY></HTML>