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<td >Qt 5.12</td><td ><a href="qtqml-index.html">Qt QML</a></td><td ><a href="qtqml-qmlmodule.html">QML Types</a></td><td >QtObject QML Type</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtqml-index.html">Qt 5.12.6 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QtObject QML Type</h1>
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<!-- $$$QtObject-brief -->
<p>A basic QML type. <a href="#details">More...</a></p>
<!-- @@@QtObject -->
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<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtQml 2.12</td></tr></table></div><ul>
<li><a href="qml-qtqml-qtobject-members.html">List of all members, including inherited members</a></li>
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<a name="properties"></a>
<h2 id="properties">Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtqml-qtobject.html#objectName-prop">objectName</a></b></b> : string</li>
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<!-- $$$QtObject-description -->
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<h2 id="details">Detailed Description</h2>
<p>The <a href="qml-qtqml-qtobject.html">QtObject</a> type is a non-visual element which contains only the <a href="qml-qtqml-qtobject.html#objectName-prop">objectName</a> property.</p>
<p>It can be useful to create a <a href="qml-qtqml-qtobject.html">QtObject</a> if you need an extremely lightweight type to enclose a set of custom properties:</p>
<pre class="qml">
import QtQuick 2.0
Item {
QtObject {
id: attributes
property string name
property int size
property variant attributes
}
Text { text: attributes.name }
}
</pre>
<p>It can also be useful for C++ integration, as it is just a plain QObject. See the QObject documentation for further details.</p>
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<h2>Property Documentation</h2>
<!-- $$$objectName -->
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<tr valign="top" class="odd" id="objectName-prop">
<td class="tblQmlPropNode"><p>
<a name="objectName-prop"></a><span class="name">objectName</span> : <span class="type"><a href="qml-string.html">string</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the QObject::objectName for this specific object instance.</p>
<p>This allows a C++ application to locate an item within a QML component using the QObject::findChild() method. For example, the following C++ application locates the child Rectangle item and dynamically changes its <code>color</code> value:</p>
<pre class="qml">
</pre>
<pre class="cpp">
<span class="comment">// main.cpp</span>
<span class="type">QQuickView</span> view;
view<span class="operator">.</span>setSource(<span class="type">QUrl</span><span class="operator">::</span>fromLocalFile(<span class="string">"MyRect.qml"</span>));
view<span class="operator">.</span>show();
<span class="type">QQuickItem</span> <span class="operator">*</span>item <span class="operator">=</span> view<span class="operator">.</span>rootObject()<span class="operator">-</span><span class="operator">></span>findChild<span class="operator"><</span><span class="type">QQuickItem</span><span class="operator">*</span><span class="operator">></span>(<span class="string">"myRect"</span>);
<span class="keyword">if</span> (item)
item<span class="operator">-</span><span class="operator">></span>setProperty(<span class="string">"color"</span><span class="operator">,</span> <span class="type">QColor</span>(<span class="type"><a href="qml-qtqml-qt.html">Qt</a></span><span class="operator">::</span>yellow));
</pre>
</div></div><!-- @@@objectName -->
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