td>is a pointer to the v_warp_filter IP instance. </td></tr>
    <tr><td class="paramname">CallbackFunc</td><td>is the address of the callback function. </td></tr>
    <tr><td class="paramname">CallbackRef</td><td>is a user data item that will be passed to the callback function when it is invoked.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>None.</dd></dl>
<dl class="section note"><dt>Note</dt><dd>Invoking this function for a handler that already has been installed repl