r><td class="paramname">cbClosure</td><td>a pointer to an user defined object (can be <code>NULL</code>). See the <a class="el" href="group__callbacks_group.html#gad1a5ac566893e13dc8c81ac0e9c87afe" title="Callback used to deliver messages to the application.">natsMsgHandler</a> prototype. </td></tr>
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  </dd>
</dl>

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