cast to a Document, or null. <br /></td></tr>
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<tr class="memitem:a8675a74aa0ada6eccab0c77ef3e5b9bd inherit pub_methods_classtinyxml2_1_1_x_m_l_node"><td class="memItemLeft" align="right" valign="top"><a id="a8675a74aa0ada6eccab0c77ef3e5b9bd"></a>
virtual <a class="el" href="classtinyxml2_1_1_x_m_l_unknown.html">XMLUnknown</a> *&#160;</td><td class="me