object to which the watch has been attached,
and second a g-io-condition object indicating the watch condition
which has been met (note: the interface for g-io-condition objects is
broken in guile-gnome at present).  The watch is ended either by
&rsquo;func&rsquo; returning #f, or by applying g-source-remove to the return
value of this procedure.  Otherwise the watch will continue.
</p>
<p>See the documentation on the a-sync-glib-read-watch procedure for
some of the difficulties with using g-io-channel watc