 n);</PRE>

<P>
      Invokes <A HREF='../functions/write.html'><CODE>write</CODE></A> on the first filter or device in this chain, which must be non-empty.
</P>

<A NAME="seek"></A>
<H4><CODE>chain::seek</CODE></H4>

<PRE CLASS="broken_ie">    <A CLASS='documented' HREF='../functions/positioning.html#synopsis'>stream_offset</A> seek(<A CLASS='documented' HREF='../functions/positioning.html#synopsis'>stream_offset</A> off, std::ios_base::seekdir way);
</PRE>

<P>
      Invokes <A HREF='../functions/seek.htm