ed</B> cancels a previous call to
<B>Tcl_CallWhenDeleted</B> with the same arguments, so that
<I>proc</I> will not be called after all when <I>interp</I> is
deleted.
If there is no deletion callback that matches <I>interp</I>,
<I>proc</I>, and <I>clientData</I> then the call to
<B>Tcl_DontCallWhenDeleted</B> has no effect.
<P>
Note that if the callback is being used to delete a resource that <I>must</I>
be released on exit, <B><A HREF="Exit.html">Tcl_CreateExitHandler</A></B> should be used to ensure that
a