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<p>Wraps a node pointer.
<a href="classTiXmlHandle.html#details">More...</a></p>
<p><code>#include <<a class="el" href="TiXml_8h_source.html">edelib/TiXml.h</a>></code></p>
<p><a href="classTiXmlHandle-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a7a91f73db1ec65f60edf6c3351e9085a">TiXmlHandle</a> (<a class="el" href="classTiXmlNode.html">TiXmlNode</a> *_node)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#ac9e2921a67990ee459e075bb6f79ab6c">TiXmlHandle</a> (const <a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> &ref)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#ae3825271aa876075ea2a1c560afbf312">operator=</a> (const <a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> &ref)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a174b56f23bfa602db4ac29eb64b6d869">FirstChild</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a4a97d7b0ad7a30a427be280287c68f0b">FirstChild</a> (const char *value) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a9735a8caf93a6307565cd268eb2e773b">FirstChildElement</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#abe915ebd64386332a75529f01b4ce49e">FirstChildElement</a> (const char *value) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a287f1d8da399e36d93d6dda84f58d38d">Child</a> (const char *value, int index) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a8e3cf46a5e6698caee8a62d036ed8c86">Child</a> (int index) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a6220b7bc9c4138e60c4ba508cda893ef">ChildElement</a> (const char *value, int index) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#aa3a699f0e75b917861906fa14fdae359">ChildElement</a> (int index) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlNode.html">TiXmlNode</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a9f8b06cd5182e1e981edf742b8e051e7">ToNode</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlElement.html">TiXmlElement</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#ade5d98bd6bda8686b8db804bc22bf505">ToElement</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlText.html">TiXmlText</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#ae869af07f33fc6cc8688ad7e5f878d60">ToText</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlUnknown.html">TiXmlUnknown</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#abccfbf7a34314c8200f00930aba52b26">ToUnknown</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlNode.html">TiXmlNode</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a8ee8431ed0e64eff7e87071c3e104328">Node</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlElement.html">TiXmlElement</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a7861a8552c191f4ddd9a22487126bb18">Element</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlText.html">TiXmlText</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a3020aa52e43b2640bc34b4d4550a4586">Text</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classTiXmlUnknown.html">TiXmlUnknown</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classTiXmlHandle.html#a8ebe774896d89376917b91a9adec1719">Unknown</a> () const </td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>Wraps a node pointer. </p>
<p>A <a class="el" href="classTiXmlHandle.html" title="Wraps a node pointer.">TiXmlHandle</a> is a class that wraps a node pointer with null checks; this is an incredibly useful thing. Note that <a class="el" href="classTiXmlHandle.html" title="Wraps a node pointer.">TiXmlHandle</a> is not part of the TinyXml DOM structure. It is a separate utility class.</p>
<p>Take an example: </p>
<div class="fragment"><pre class="fragment">
* <Document>
* <Element attributeA = "valueA">
* <Child attributeB = "value1" />
* <Child attributeB = "value2" />
* </Element>
* <Document>
* </pre></div><p>Assuming you want the value of "attributeB" in the 2nd "Child" element, it's very easy to write a *lot* of code that looks like:</p>
<div class="fragment"><pre class="fragment">
* TiXmlElement* root = document.FirstChildElement( "Document" );
* if ( root )
* {
* TiXmlElement* element = root->FirstChildElement( "Element" );
* if ( element )
* {
* TiXmlElement* child = element->FirstChildElement( "Child" );
* if ( child )
* {
* TiXmlElement* child2 = child->NextSiblingElement( "Child" );
* if ( child2 )
* {
* Finally do something useful.
* </pre></div><p>And that doesn't even cover "else" cases. <a class="el" href="classTiXmlHandle.html" title="Wraps a node pointer.">TiXmlHandle</a> addresses the verbosity of such code. A <a class="el" href="classTiXmlHandle.html" title="Wraps a node pointer.">TiXmlHandle</a> checks for null pointers so it is perfectly safe and correct to use:</p>
<div class="fragment"><pre class="fragment">
* TiXmlHandle docHandle( &document );
* TiXmlElement* child2 = docHandle.FirstChild( "Document" ).FirstChild( "Element" ).Child( "Child", 1 ).ToElement();
* if ( child2 )
* {
* do something useful
* </pre></div><p>Which is MUCH more concise and useful.</p>
<p>It is also safe to copy handles - internally they are nothing more than node pointers. </p>
<div class="fragment"><pre class="fragment">
* TiXmlHandle handleCopy = handle;
* </pre></div><p>What they should not be used for is iteration:</p>
<div class="fragment"><pre class="fragment">
* int i=0;
* while ( true )
* {
* TiXmlElement* child = docHandle.FirstChild( "Document" ).FirstChild( "Element" ).Child( "Child", i ).ToElement();
* if ( !child )
* break;
* do something
* ++i;
* }
* </pre></div><p>It seems reasonable, but it is in fact two embedded while loops. The Child method is a linear walk to find the element, so this code would iterate much more than it needs to. Instead, prefer:</p>
<div class="fragment"><pre class="fragment">
* TiXmlElement* child = docHandle.FirstChild( "Document" ).FirstChild( "Element" ).FirstChild( "Child" ).ToElement();
*
* for( child; child; child=child->NextSiblingElement() )
* {
* do something
* }
* </pre></div> </div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a7a91f73db1ec65f60edf6c3351e9085a"></a><!-- doxytag: member="TiXmlHandle::TiXmlHandle" ref="a7a91f73db1ec65f60edf6c3351e9085a" args="(TiXmlNode *_node)" -->
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<td class="memname"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classTiXmlNode.html">TiXmlNode</a> * </td>
<td class="paramname"><em>_node</em></td><td>)</td>
<td><code> [inline]</code></td>
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<p>Create a handle from any node (at any depth of the tree.) This can be a null pointer. </p>
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<a class="anchor" id="ac9e2921a67990ee459e075bb6f79ab6c"></a><!-- doxytag: member="TiXmlHandle::TiXmlHandle" ref="ac9e2921a67990ee459e075bb6f79ab6c" args="(const TiXmlHandle &ref)" -->
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<td class="memname"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> & </td>
<td class="paramname"><em>ref</em></td><td>)</td>
<td><code> [inline]</code></td>
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<p>Copy constructor </p>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a287f1d8da399e36d93d6dda84f58d38d"></a><!-- doxytag: member="TiXmlHandle::Child" ref="a287f1d8da399e36d93d6dda84f58d38d" args="(const char *value, int index) const " -->
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<td class="memname"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> <a class="el" href="classTiXmlHandle.html#a287f1d8da399e36d93d6dda84f58d38d">Child</a> </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>value</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
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<p>Return a handle to the "index" child with the given name. The first child is 0, the second 1, etc. </p>
</div>
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<a class="anchor" id="a8e3cf46a5e6698caee8a62d036ed8c86"></a><!-- doxytag: member="TiXmlHandle::Child" ref="a8e3cf46a5e6698caee8a62d036ed8c86" args="(int index) const " -->
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<td>(</td>
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<td class="paramname"><em>index</em></td><td>)</td>
<td> const</td>
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<p>Return a handle to the "index" child. The first child is 0, the second 1, etc. </p>
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<a class="anchor" id="a6220b7bc9c4138e60c4ba508cda893ef"></a><!-- doxytag: member="TiXmlHandle::ChildElement" ref="a6220b7bc9c4138e60c4ba508cda893ef" args="(const char *value, int index) const " -->
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<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"><em>value</em>, </td>
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<p>Return a handle to the "index" child element with the given name. The first child element is 0, the second 1, etc. Note that only TiXmlElements are indexed: other types are not counted. </p>
</div>
</div>
<a class="anchor" id="aa3a699f0e75b917861906fa14fdae359"></a><!-- doxytag: member="TiXmlHandle::ChildElement" ref="aa3a699f0e75b917861906fa14fdae359" args="(int index) const " -->
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<td>(</td>
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<td class="paramname"><em>index</em></td><td>)</td>
<td> const</td>
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<p>Return a handle to the "index" child element. The first child element is 0, the second 1, etc. Note that only TiXmlElements are indexed: other types are not counted. </p>
</div>
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<a class="anchor" id="a7861a8552c191f4ddd9a22487126bb18"></a><!-- doxytag: member="TiXmlHandle::Element" ref="a7861a8552c191f4ddd9a22487126bb18" args="() const " -->
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<td class="memname"><a class="el" href="classTiXmlElement.html">TiXmlElement</a>* <a class="el" href="classTiXmlHandle.html#a7861a8552c191f4ddd9a22487126bb18">Element</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
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<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000014">Deprecated:</a></b></dt><dd>use ToElement. Return the handle as a <a class="el" href="classTiXmlElement.html" title="Container xml class.">TiXmlElement</a>. This may return null. </dd></dl>
</div>
</div>
<a class="anchor" id="a174b56f23bfa602db4ac29eb64b6d869"></a><!-- doxytag: member="TiXmlHandle::FirstChild" ref="a174b56f23bfa602db4ac29eb64b6d869" args="() const " -->
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<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Return a handle to the first child node. </p>
</div>
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<a class="anchor" id="a4a97d7b0ad7a30a427be280287c68f0b"></a><!-- doxytag: member="TiXmlHandle::FirstChild" ref="a4a97d7b0ad7a30a427be280287c68f0b" args="(const char *value) const " -->
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<td>(</td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<p>Return a handle to the first child node with the given name. </p>
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<a class="anchor" id="a9735a8caf93a6307565cd268eb2e773b"></a><!-- doxytag: member="TiXmlHandle::FirstChildElement" ref="a9735a8caf93a6307565cd268eb2e773b" args="() const " -->
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<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Return a handle to the first child element. </p>
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<a class="anchor" id="abe915ebd64386332a75529f01b4ce49e"></a><!-- doxytag: member="TiXmlHandle::FirstChildElement" ref="abe915ebd64386332a75529f01b4ce49e" args="(const char *value) const " -->
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<td>(</td>
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<td class="paramname"><em>value</em></td><td>)</td>
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<p>Return a handle to the first child element with the given name. </p>
</div>
</div>
<a class="anchor" id="a8ee8431ed0e64eff7e87071c3e104328"></a><!-- doxytag: member="TiXmlHandle::Node" ref="a8ee8431ed0e64eff7e87071c3e104328" args="() const " -->
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<td class="memname"><a class="el" href="classTiXmlNode.html">TiXmlNode</a>* <a class="el" href="classTiXmlHandle.html#a8ee8431ed0e64eff7e87071c3e104328">Node</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
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<div class="memdoc">
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000013">Deprecated:</a></b></dt><dd>use ToNode. Return the handle as a <a class="el" href="classTiXmlNode.html" title="Parent class for everything in DOM.">TiXmlNode</a>. This may return null. </dd></dl>
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<a class="anchor" id="ae3825271aa876075ea2a1c560afbf312"></a><!-- doxytag: member="TiXmlHandle::operator=" ref="ae3825271aa876075ea2a1c560afbf312" args="(const TiXmlHandle &ref)" -->
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<td class="memname"><a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classTiXmlHandle.html">TiXmlHandle</a> & </td>
<td class="paramname"><em>ref</em></td><td>)</td>
<td><code> [inline]</code></td>
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<p>Assignement from <a class="el" href="classTiXmlHandle.html" title="Wraps a node pointer.">TiXmlHandle</a> </p>
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<a class="anchor" id="a3020aa52e43b2640bc34b4d4550a4586"></a><!-- doxytag: member="TiXmlHandle::Text" ref="a3020aa52e43b2640bc34b4d4550a4586" args="() const " -->
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<td class="memname"><a class="el" href="classTiXmlText.html">TiXmlText</a>* <a class="el" href="classTiXmlHandle.html#a3020aa52e43b2640bc34b4d4550a4586">Text</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
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<div class="memdoc">
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000015">Deprecated:</a></b></dt><dd>use <a class="el" href="classTiXmlHandle.html#ae869af07f33fc6cc8688ad7e5f878d60">ToText()</a> Return the handle as a <a class="el" href="classTiXmlText.html" title="XML text.">TiXmlText</a>. This may return null. </dd></dl>
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<a class="anchor" id="ade5d98bd6bda8686b8db804bc22bf505"></a><!-- doxytag: member="TiXmlHandle::ToElement" ref="ade5d98bd6bda8686b8db804bc22bf505" args="() const " -->
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<td class="memname"><a class="el" href="classTiXmlElement.html">TiXmlElement</a>* <a class="el" href="classTiXmlHandle.html#ade5d98bd6bda8686b8db804bc22bf505">ToElement</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
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<div class="memdoc">
<p>Return the handle as a <a class="el" href="classTiXmlElement.html" title="Container xml class.">TiXmlElement</a>. This may return null. </p>
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<a class="anchor" id="a9f8b06cd5182e1e981edf742b8e051e7"></a><!-- doxytag: member="TiXmlHandle::ToNode" ref="a9f8b06cd5182e1e981edf742b8e051e7" args="() const " -->
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<td class="memname"><a class="el" href="classTiXmlNode.html">TiXmlNode</a>* <a class="el" href="classTiXmlHandle.html#a9f8b06cd5182e1e981edf742b8e051e7">ToNode</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return the handle as a <a class="el" href="classTiXmlNode.html" title="Parent class for everything in DOM.">TiXmlNode</a>. This may return null. </p>
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</div>
<a class="anchor" id="ae869af07f33fc6cc8688ad7e5f878d60"></a><!-- doxytag: member="TiXmlHandle::ToText" ref="ae869af07f33fc6cc8688ad7e5f878d60" args="() const " -->
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<td class="memname"><a class="el" href="classTiXmlText.html">TiXmlText</a>* <a class="el" href="classTiXmlHandle.html#ae869af07f33fc6cc8688ad7e5f878d60">ToText</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return the handle as a <a class="el" href="classTiXmlText.html" title="XML text.">TiXmlText</a>. This may return null. </p>
</div>
</div>
<a class="anchor" id="abccfbf7a34314c8200f00930aba52b26"></a><!-- doxytag: member="TiXmlHandle::ToUnknown" ref="abccfbf7a34314c8200f00930aba52b26" args="() const " -->
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<td class="memname"><a class="el" href="classTiXmlUnknown.html">TiXmlUnknown</a>* <a class="el" href="classTiXmlHandle.html#abccfbf7a34314c8200f00930aba52b26">ToUnknown</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return the handle as a <a class="el" href="classTiXmlUnknown.html" title="Unknown XML element.">TiXmlUnknown</a>. This may return null. </p>
</div>
</div>
<a class="anchor" id="a8ebe774896d89376917b91a9adec1719"></a><!-- doxytag: member="TiXmlHandle::Unknown" ref="a8ebe774896d89376917b91a9adec1719" args="() const " -->
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<td class="memname"><a class="el" href="classTiXmlUnknown.html">TiXmlUnknown</a>* <a class="el" href="classTiXmlHandle.html#a8ebe774896d89376917b91a9adec1719">Unknown</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="deprecated"><dt><b><a class="el" href="deprecated.html#_deprecated000016">Deprecated:</a></b></dt><dd>use <a class="el" href="classTiXmlHandle.html#abccfbf7a34314c8200f00930aba52b26">ToUnknown()</a> Return the handle as a <a class="el" href="classTiXmlUnknown.html" title="Unknown XML element.">TiXmlUnknown</a>. This may return null. </dd></dl>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>edelib/<a class="el" href="TiXml_8h_source.html">TiXml.h</a></li>
</ul>
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Generated on Tue Jun 5 2012 17:49:02 for edelib by  <a href="http://www.doxygen.org/index.html">
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</a> 1.7.6.1
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