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<td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="functions.html"><font color="#004faf">All Functions</font></a> · <a href="overviews.html"><font color="#004faf">Overviews</font></a></td></tr></table><h1 class="title">QDomProcessingInstruction Class Reference<br /><span class="small-subtitle">[<a href="qtxml.html">QtXml</a> module]</span>
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<p>The QDomProcessingInstruction class represents an XML processing instruction. <a href="#details">More...</a></p>
<pre> #include <QDomProcessingInstruction></pre><p><b>This class is not part of the Qt GUI Framework Edition.</b></p>
<p>Inherits <a href="qdomnode.html">QDomNode</a>.</p>
<p><b>Note:</b> All functions in this class are <a href="threads-reentrancy.html#reentrant">reentrant</a>.</p>
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<li><a href="qdomprocessinginstruction-members.html">List of all members, including inherited members</a></li>
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<h2>Public Functions</h2>
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<tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qdomprocessinginstruction.html#QDomProcessingInstruction">QDomProcessingInstruction</a></b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"></td><td class="memItemRight" valign="bottom"><b><a href="qdomprocessinginstruction.html#QDomProcessingInstruction-2">QDomProcessingInstruction</a></b> ( const QDomProcessingInstruction & <i>x</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><b><a href="qdomprocessinginstruction.html#data">data</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QDomNode::NodeType </td><td class="memItemRight" valign="bottom"><b><a href="qdomprocessinginstruction.html#nodeType">nodeType</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><b><a href="qdomprocessinginstruction.html#setData">setData</a></b> ( const QString & <i>d</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QString </td><td class="memItemRight" valign="bottom"><b><a href="qdomprocessinginstruction.html#target">target</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QDomProcessingInstruction & </td><td class="memItemRight" valign="bottom"><b><a href="qdomprocessinginstruction.html#operator-eq">operator=</a></b> ( const QDomProcessingInstruction & <i>x</i> )</td></tr>
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<li><div bar="2" class="fn"></div>66 public functions inherited from <a href="qdomnode.html#public-functions">QDomNode</a></li>
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<h2>Detailed Description</h2>
<p>The QDomProcessingInstruction class represents an XML processing instruction.</p>
<p>Processing instructions are used in XML to keep processor-specific information in the text of the document.</p>
<p>The XML declaration that appears at the top of an XML document, typically <tt><?xml version='1.0' encoding='UTF-8'?></tt>, is treated by QDom as a processing instruction. This is unfortunate, since the XML declaration is not a processing instruction; among other differences, it cannot be inserted into a document anywhere but on the first line.</p>
<p>Do not use this function to create an xml declaration, since although it has the same syntax as a processing instruction, it isn't, and might not be treated by QDom as such.</p>
<p>The content of the processing instruction is retrieved with <a href="qdomprocessinginstruction.html#data">data</a>() and set with <a href="qdomprocessinginstruction.html#setData">setData</a>(). The processing instruction's target is retrieved with <a href="qdomprocessinginstruction.html#target">target</a>().</p>
<p>For further information about the Document Object Model see <a href="http://www.w3.org/TR/REC-DOM-Level-1/">Level 1</a> and <a href="http://www.w3.org/TR/DOM-Level-2-Core/">Level 2 Core</a>. For a more general introduction of the DOM implementation see the <a href="qdomdocument.html">QDomDocument</a> documentation.</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn"><a name="QDomProcessingInstruction"></a>QDomProcessingInstruction::QDomProcessingInstruction ()</h3>
<p>Constructs an empty processing instruction. Use <a href="qdomdocument.html#createProcessingInstruction">QDomDocument::createProcessingInstruction</a>() to create a processing instruction with content.</p>
<h3 class="fn"><a name="QDomProcessingInstruction-2"></a>QDomProcessingInstruction::QDomProcessingInstruction ( const QDomProcessingInstruction & <i>x</i> )</h3>
<p>Constructs a copy of <i>x</i>.</p>
<p>The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use <a href="qdomnode.html#cloneNode">cloneNode</a>().</p>
<a name="//apple_ref/cpp/instm/QDomProcessingInstruction/data"></a>
<h3 class="fn"><a name="data"></a><a href="qstring.html">QString</a> QDomProcessingInstruction::data () const</h3>
<p>Returns the content of this processing instruction.</p>
<p>See also <a href="qdomprocessinginstruction.html#setData">setData</a>() and <a href="qdomprocessinginstruction.html#target">target</a>().</p>
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<h3 class="fn"><a name="nodeType"></a><a href="qdomnode.html#NodeType-enum">QDomNode::NodeType</a> QDomProcessingInstruction::nodeType () const</h3>
<p>Returns <tt>ProcessingInstructionNode</tt>.</p>
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<h3 class="fn"><a name="setData"></a>void QDomProcessingInstruction::setData ( const <a href="qstring.html">QString</a> & <i>d</i> )</h3>
<p>Sets the data contained in the processing instruction to <i>d</i>.</p>
<p>See also <a href="qdomprocessinginstruction.html#data">data</a>().</p>
<a name="//apple_ref/cpp/instm/QDomProcessingInstruction/target"></a>
<h3 class="fn"><a name="target"></a><a href="qstring.html">QString</a> QDomProcessingInstruction::target () const</h3>
<p>Returns the target of this processing instruction.</p>
<p>See also <a href="qdomprocessinginstruction.html#data">data</a>().</p>
<a name="//apple_ref/cpp/instm/QDomProcessingInstruction/operator="></a>
<h3 class="fn"><a name="operator-eq"></a>QDomProcessingInstruction & QDomProcessingInstruction::operator= ( const QDomProcessingInstruction & <i>x</i> )</h3>
<p>Assigns <i>x</i> to this processing instruction.</p>
<p>The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use <a href="qdomnode.html#cloneNode">cloneNode</a>().</p>
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