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    <a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#protected-functions">Protected Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QNearFieldTagType2 Class Reference</h1>
<!-- $$$QNearFieldTagType2-brief -->
<p>The QNearFieldTagType2 class provides an interface for communicating with an NFC Tag Type 2 tag. <a href="#details">More...</a></p>
<!-- @@@QNearFieldTagType2 -->
<pre class="cpp"> <span class="preprocessor">#include &lt;QNearFieldTagType2&gt;</span></pre><p><b>Inherits: </b><a href="qnearfieldtarget.html">QNearFieldTarget</a>.</p>
<p>This class was introduced in Qt Mobility 1.2.</p>
<ul>
<li><a href="qnearfieldtagtype2-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#QNearFieldTagType2">QNearFieldTagType2</a></b> ( QObject * <i>parent</i> = 0 )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#dtor.QNearFieldTagType2">~QNearFieldTagType2</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#memorySize">memorySize</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual RequestId </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#readBlock">readBlock</a></b> ( quint8 <i>blockAddress</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual RequestId </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#selectSector">selectSector</a></b> ( quint8 <i>sector</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> quint8 </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#version">version</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual RequestId </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#writeBlock">writeBlock</a></b> ( quint8 <i>blockAddress</i>, const QByteArray &amp; <i>data</i> )</td></tr>
</table>
<a name="reimplemented-public-functions"></a>
<h2>Reimplemented Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#hasNdefMessage">hasNdefMessage</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual RequestId </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#readNdefMessages">readNdefMessages</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual Type </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#type">type</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#waitForRequestCompleted">waitForRequestCompleted</a></b> ( const RequestId &amp; <i>id</i>, int <i>msecs</i> = 5000 )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual RequestId </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#writeNdefMessages">writeNdefMessages</a></b> ( const QList&lt;QNdefMessage&gt; &amp; <i>messages</i> )</td></tr>
</table>
<ul>
<li class="fn">13 public functions inherited from <a href="qnearfieldtarget.html#public-functions">QNearFieldTarget</a></li>
<li class="fn">29 public functions inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-functions">QObject</a></li>
</ul>
<a name="reimplemented-protected-functions"></a>
<h2>Reimplemented Protected Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qnearfieldtagtype2.html#handleResponse">handleResponse</a></b> ( const QNearFieldTarget::RequestId &amp; <i>id</i>, const QByteArray &amp; <i>response</i> )</td></tr>
</table>
<ul>
<li class="fn">1 protected function inherited from <a href="qnearfieldtarget.html#protected-functions">QNearFieldTarget</a></li>
<li class="fn">7 protected functions inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#protected-functions">QObject</a></li>
</ul>
<h3>Additional Inherited Members</h3>
<ul>
<li class="fn">1 property inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#properties">QObject</a></li>
<li class="fn">1 public slot inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-slots">QObject</a></li>
<li class="fn">5 signals inherited from <a href="qnearfieldtarget.html#signals">QNearFieldTarget</a></li>
<li class="fn">1 signal inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#signals">QObject</a></li>
<li class="fn">1 public variable inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-variables">QObject</a></li>
<li class="fn">4 static public members inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#static-public-members">QObject</a></li>
<li class="fn">1 protected function inherited from <a href="qnearfieldtarget.html#protected-functions">QNearFieldTarget</a></li>
<li class="fn">7 protected functions inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#protected-functions">QObject</a></li>
<li class="fn">2 protected variables inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#protected-variables">QObject</a></li>
</ul>
<a name="details"></a>
<!-- $$$QNearFieldTagType2-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QNearFieldTagType2 class provides an interface for communicating with an NFC Tag Type 2 tag.</p>
</div>
<!-- @@@QNearFieldTagType2 -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QNearFieldTagType2[overload1]$$$QNearFieldTagType2QObject* -->
<h3 class="fn"><a name="QNearFieldTagType2"></a>QNearFieldTagType2::<span class="name">QNearFieldTagType2</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qobject.html">QObject</a></span> * <i>parent</i> = 0 )</h3>
<p>Constructs a new tag type 2 near field target with <i>parent</i>.</p>
<!-- @@@QNearFieldTagType2 -->
<!-- $$$~QNearFieldTagType2[overload1]$$$~QNearFieldTagType2 -->
<h3 class="fn"><a name="dtor.QNearFieldTagType2"></a>QNearFieldTagType2::<span class="name">~QNearFieldTagType2</span> ()</h3>
<p>Destroys the tag type 2 near field target.</p>
<!-- @@@~QNearFieldTagType2 -->
<!-- $$$handleResponse[overload1]$$$handleResponseconstQNearFieldTarget::RequestId&constQByteArray& -->
<h3 class="fn"><a name="handleResponse"></a><span class="type">bool</span> QNearFieldTagType2::<span class="name">handleResponse</span> ( const <span class="type"><a href="qnearfieldtarget-requestid.html">QNearFieldTarget::RequestId</a></span> &amp; <i>id</i>, const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qbytearray.html">QByteArray</a></span> &amp; <i>response</i> )<tt> [virtual protected]</tt></h3>
<p>Reimplemented from <a href="qnearfieldtarget.html#handleResponse">QNearFieldTarget::handleResponse</a>().</p>
<!-- @@@handleResponse -->
<!-- $$$hasNdefMessage[overload1]$$$hasNdefMessage -->
<h3 class="fn"><a name="hasNdefMessage"></a><span class="type">bool</span> QNearFieldTagType2::<span class="name">hasNdefMessage</span> ()<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qnearfieldtarget.html#hasNdefMessage">QNearFieldTarget::hasNdefMessage</a>().</p>
<!-- @@@hasNdefMessage -->
<!-- $$$memorySize[overload1]$$$memorySize -->
<h3 class="fn"><a name="memorySize"></a><span class="type">int</span> QNearFieldTagType2::<span class="name">memorySize</span> ()</h3>
<p>Returns the memory size in bytes of the tag.</p>
<!-- @@@memorySize -->
<!-- $$$readBlock[overload1]$$$readBlockquint8 -->
<h3 class="fn"><a name="readBlock"></a><span class="type"><a href="qnearfieldtarget-requestid.html">RequestId</a></span> QNearFieldTagType2::<span class="name">readBlock</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#quint8-typedef">quint8</a></span> <i>blockAddress</i> )<tt> [virtual]</tt></h3>
<p>Requests 16 bytes of data starting at <i>blockAddress</i>. Returns a request id which can be used to track the completion status of the request.</p>
<p>Once the request completes successfully the response can be retrieved from the <a href="qnearfieldtarget.html#requestResponse">requestResponse</a>() function. The response of this request will be a <a href="http://qt.nokia.com/doc/4.7/qbytearray.html">QByteArray</a>.</p>
<p><b>See also </b><a href="qnearfieldtarget.html#requestCompleted">requestCompleted</a>() and <a href="qnearfieldtagtype2.html#waitForRequestCompleted">waitForRequestCompleted</a>().</p>
<!-- @@@readBlock -->
<!-- $$$readNdefMessages[overload1]$$$readNdefMessages -->
<h3 class="fn"><a name="readNdefMessages"></a><span class="type"><a href="qnearfieldtarget-requestid.html">RequestId</a></span> QNearFieldTagType2::<span class="name">readNdefMessages</span> ()<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qnearfieldtarget.html#readNdefMessages">QNearFieldTarget::readNdefMessages</a>().</p>
<!-- @@@readNdefMessages -->
<!-- $$$selectSector[overload1]$$$selectSectorquint8 -->
<h3 class="fn"><a name="selectSector"></a><span class="type"><a href="qnearfieldtarget-requestid.html">RequestId</a></span> QNearFieldTagType2::<span class="name">selectSector</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#quint8-typedef">quint8</a></span> <i>sector</i> )<tt> [virtual]</tt></h3>
<p>Selects the <i>sector</i> upon which subsequent <a href="qnearfieldtagtype2.html#readBlock">readBlock</a>() and <a href="qnearfieldtagtype2.html#writeBlock">writeBlock</a>() operations will act.</p>
<p>Returns a request id which can be used to track the completion status of the request.</p>
<p>Once the request completes the response can be retrieved from the <a href="qnearfieldtarget.html#requestResponse">requestResponse</a>() function. The response of this request will be a boolean value, true for success; otherwise false.</p>
<p><b>Note:</b> this request has a passive acknowledgement mechanism. The operation is deemed successful if no response is received within 1ms. It will therefore take a minimum of 1 millisecond for the <a href="qnearfieldtarget.html#requestCompleted">requestCompleted</a>() signal to be emitted and calling <a href="qnearfieldtagtype2.html#waitForRequestCompleted">waitForRequestCompleted</a>() on the returned request id may cause the current thread to block for up to 1 millisecond.</p>
<!-- @@@selectSector -->
<!-- $$$type[overload1]$$$type -->
<h3 class="fn"><a name="type"></a><span class="type"><a href="qnearfieldtarget.html#Type-enum">Type</a></span> QNearFieldTagType2::<span class="name">type</span> () const<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qnearfieldtarget.html#type">QNearFieldTarget::type</a>().</p>
<!-- @@@type -->
<!-- $$$version[overload1]$$$version -->
<h3 class="fn"><a name="version"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#quint8-typedef">quint8</a></span> QNearFieldTagType2::<span class="name">version</span> ()</h3>
<p>Returns the NFC Tag Type 2 specification version number that the tag supports.</p>
<!-- @@@version -->
<!-- $$$waitForRequestCompleted[overload1]$$$waitForRequestCompletedconstRequestId&int -->
<h3 class="fn"><a name="waitForRequestCompleted"></a><span class="type">bool</span> QNearFieldTagType2::<span class="name">waitForRequestCompleted</span> ( const <span class="type"><a href="qnearfieldtarget-requestid.html">RequestId</a></span> &amp; <i>id</i>, <span class="type">int</span> <i>msecs</i> = 5000 )<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qnearfieldtarget.html#waitForRequestCompleted">QNearFieldTarget::waitForRequestCompleted</a>().</p>
<!-- @@@waitForRequestCompleted -->
<!-- $$$writeBlock[overload1]$$$writeBlockquint8constQByteArray& -->
<h3 class="fn"><a name="writeBlock"></a><span class="type"><a href="qnearfieldtarget-requestid.html">RequestId</a></span> QNearFieldTagType2::<span class="name">writeBlock</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#quint8-typedef">quint8</a></span> <i>blockAddress</i>, const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qbytearray.html">QByteArray</a></span> &amp; <i>data</i> )<tt> [virtual]</tt></h3>
<p>Writes 4 bytes of <i>data</i> to the block at <i>blockAddress</i>. Returns a request id which can be used to track the completion status of the request.</p>
<p>Once the request completes the response can be retrieved from the <a href="qnearfieldtarget.html#requestResponse">requestResponse</a>() function. The response of this request will be a boolean value, true for success; otherwise false.</p>
<p>Returns true on success; otherwise returns false.</p>
<!-- @@@writeBlock -->
<!-- $$$writeNdefMessages[overload1]$$$writeNdefMessagesconstQList<QNdefMessage>& -->
<h3 class="fn"><a name="writeNdefMessages"></a><span class="type"><a href="qnearfieldtarget-requestid.html">RequestId</a></span> QNearFieldTagType2::<span class="name">writeNdefMessages</span> ( const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qlist.html">QList</a></span>&lt;<span class="type"><a href="qndefmessage.html">QNdefMessage</a></span>&gt; &amp; <i>messages</i> )<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qnearfieldtarget.html#writeNdefMessages">QNearFieldTarget::writeNdefMessages</a>().</p>
<!-- @@@writeNdefMessages -->
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