 that the window can clean itself up (e.g. by
unhighlighting the selection).  <I>Proc</I> should have arguments and
result that match the type <B>Tk_LostSelProc</B>:
<PRE>typedef void <B>Tk_LostSelProc</B>(
        ClientData <I>clientData</I>);</PRE>
The <I>clientData</I> parameter to <I>proc</I> is a copy of the
<I>clientData</I> argument given to <B>Tk_OwnSelection</B>, and is
usually a pointer to a data structure containing application-specific
information about <I>tkwin</I>.
<H3><A NAME="M6">KEYWORDS</