25 lines
1.7 KiB
HTML
25 lines
1.7 KiB
HTML
<HTML><HEAD><TITLE>Tcl Built-In Commands - flush manual page</TITLE></HEAD><BODY>
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<H3><A NAME="M2">NAME</A></H3>
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flush - Flush buffered output for a channel
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<H3><A NAME="M3">SYNOPSIS</A></H3>
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<B>flush </B><I>channelId</I><BR>
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<H3><A NAME="M4">DESCRIPTION</A></H3>
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Flushes any output that has been buffered for <I>channelId</I>.
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<I>ChannelId</I> must be a channel identifier such as returned by a previous
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<B><A HREF="../TkCmd/open.htm">open</A></B> or <B><A HREF="../TkCmd/socket.htm">socket</A></B> command, and it must have been opened for writing.
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If the channel is in blocking mode the command does not return until all the
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buffered output has been flushed to the channel. If the channel is in
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nonblocking mode, the command may return before all buffered output has been
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flushed; the remainder will be flushed in the background as fast as the
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underlying file or device is able to absorb it.
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<H3><A NAME="M5">SEE ALSO</A></H3>
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<B><A HREF="../TkCmd/file.htm">file</A></B>, <B><A HREF="../TkCmd/open.htm">open</A></B>, <B><A HREF="../TkCmd/socket.htm">socket</A></B>
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<H3><A NAME="M6">KEYWORDS</A></H3>
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<A href="../Keywords/B.htm#blocking">blocking</A>, <A href="../Keywords/B.htm#buffer">buffer</A>, <A href="../Keywords/C.htm#channel">channel</A>, <A href="../Keywords/F.htm#flush">flush</A>, <A href="../Keywords/N.htm#nonblocking">nonblocking</A>, <A href="../Keywords/O.htm#output">output</A>
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<HR><PRE>
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<A HREF="../copyright.htm">Copyright</A> © 1993 The Regents of the University of California.
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<A HREF="../copyright.htm">Copyright</A> © 1994-1996 Sun Microsystems, Inc.
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<A HREF="../copyright.htm">Copyright</A> © 1995-1997 Roger E. Critchlow Jr.</PRE>
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</BODY></HTML>
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