<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qdeclarativendeffilter.cpp --> <title>NdefFilter QML Type | Qt NFC 5.12.6</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtnfc-index.html">Qt NFC</a></td><td ><a href="qtnfc-qmlmodule.html">QML Types</a></td><td >NdefFilter QML Type</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtnfc-index.html">Qt 5.12.6 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#properties">Properties</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">NdefFilter QML Type</h1> <span class="subtitle"></span> <!-- $$$NdefFilter-brief --> <p>Represents a filtering constraint for NDEF message records. <a href="#details">More...</a></p> <!-- @@@NdefFilter --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtNfc 5.12</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 5.2</td></tr></table></div><ul> <li><a href="qml-qtnfc-ndeffilter-members.html">List of all members, including inherited members</a></li> </ul> <a name="properties"></a> <h2 id="properties">Properties</h2> <ul> <li class="fn"><b><b><a href="qml-qtnfc-ndeffilter.html#maximum-prop">maximum</a></b></b> : int</li> <li class="fn"><b><b><a href="qml-qtnfc-ndeffilter.html#minimum-prop">minimum</a></b></b> : int</li> <li class="fn"><b><b><a href="qml-qtnfc-ndeffilter.html#type-prop">type</a></b></b> : string</li> <li class="fn"><b><b><a href="qml-qtnfc-ndeffilter.html#typeNameFormat-prop">typeNameFormat</a></b></b> : QQmlNdefRecord::TypeNameFormat</li> </ul> <!-- $$$NdefFilter-description --> <a name="details"></a> <h2 id="details">Detailed Description</h2> <p>The <a href="qml-qtnfc-ndeffilter.html">NdefFilter</a> type is used with the <a href="qml-qtnfc-nearfield.html">NearField</a> type to read NDEF messages from NFC Forum tags that match a given structure.</p> <pre class="cpp"> NearField { filter: <span class="operator">[</span> NdefFilter { type: <span class="string">"urn:nfc:wkt:U"</span> minimum: <span class="number">1</span> maximum: <span class="number">1</span> } <span class="operator">]</span> } </pre> <p><b>See also </b><a href="qml-qtnfc-nearfield.html">NearField</a> and <a href="qndeffilter.html">QNdefFilter</a>.</p> <!-- @@@NdefFilter --> <h2>Property Documentation</h2> <!-- $$$maximum --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="maximum-prop"> <td class="tblQmlPropNode"><p> <a name="maximum-prop"></a><span class="name">maximum</span> : <span class="type">int</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>This property holds the maximum number of records of the given type that must be in the NDEF message for it match.</p> <p>The default maximum is UINT_MAX.</p> <p><b>See also </b><a href="qml-qtnfc-ndeffilter.html#minimum-prop">minimum</a>.</p> </div></div><!-- @@@maximum --> <br/> <!-- $$$minimum --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="minimum-prop"> <td class="tblQmlPropNode"><p> <a name="minimum-prop"></a><span class="name">minimum</span> : <span class="type">int</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>This property holds the minimum number of records of the given type that must be in the NDEF message for it match.</p> <p>The default minimum is 1.</p> <p><b>See also </b><a href="qml-qtnfc-ndeffilter.html#maximum-prop">maximum</a>.</p> </div></div><!-- @@@minimum --> <br/> <!-- $$$type --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="type-prop"> <td class="tblQmlPropNode"><p> <a name="type-prop"></a><span class="name">type</span> : <span class="type">string</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>This property holds the NDEF record type that the filter matches. This property must be set to the fully qualified record type, i.e. including the NIS and NSS prefixes. For example set to <code>urn:nfc:wkt:U</code> to match NFC RTD-URI records.</p> </div></div><!-- @@@type --> <br/> <!-- $$$typeNameFormat --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="typeNameFormat-prop"> <td class="tblQmlPropNode"><p> <a name="typeNameFormat-prop"></a><span class="name">typeNameFormat</span> : <span class="type">QQmlNdefRecord::TypeNameFormat</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>This property holds the NDEF record name format type <a href="qqmlndefrecord.html#TypeNameFormat-enum">QQmlNdefRecord::TypeNameFormat</a>.</p> </div></div><!-- @@@typeNameFormat --> <br/> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>