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<td >Qt 5.12</td><td ><a href="qtcore-index.html">Qt Core</a></td><td ><a href="qtcore-module.html">C++ Classes</a></td><td >QObject</td></tr></table><table class="buildversion"><tr>
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<h1 class="title">Obsolete Members for QObject</h1>
<p><b>The following members of class <a href="qobject.html">QObject</a> are obsolete.</b> They are provided to keep old source code working. We strongly advise against using them in new code.</p>
<h2>Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>void </td><td class="memItemRight bottomAlign"><b><a href="qobject-obsolete.html#dumpObjectInfo-1">dumpObjectInfo</a></b>()</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>void </td><td class="memItemRight bottomAlign"><b><a href="qobject-obsolete.html#dumpObjectTree-1">dumpObjectTree</a></b>()</td></tr>
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<h2>Static Public Members</h2>
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<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>QString </td><td class="memItemRight bottomAlign"><b><a href="qobject-obsolete.html#trUtf8">trUtf8</a></b>(const char *<i>sourceText</i>, const char *<i>disambiguation</i> = Q_OBJECT, int <i>n</i> = Q_OBJECT)</td></tr>
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<h2>Related Non-Members</h2>
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<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>T </td><td class="memItemRight bottomAlign"><b><a href="qobject-obsolete.html#qFindChild">qFindChild</a></b>(const QObject *<i>obj</i>, const QString &<i>name</i> = QString())</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>QList<T> </td><td class="memItemRight bottomAlign"><b><a href="qobject-obsolete.html#qFindChildren">qFindChildren</a></b>(const QObject *<i>obj</i>, const QString &<i>name</i> = QString())</td></tr>
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<h2>Macros</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code></td><td class="memItemRight bottomAlign"><b><a href="qobject-obsolete.html#Q_ENUMS">Q_ENUMS</a></b>(<i> ...</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code></td><td class="memItemRight bottomAlign"><b><a href="qobject-obsolete.html#Q_FLAGS">Q_FLAGS</a></b>(<i> ...</i>)</td></tr>
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<h2>Member Function Documentation</h2>
<!-- $$$dumpObjectInfo$$$dumpObjectInfo -->
<h3 class="fn" id="dumpObjectInfo-1"><a name="dumpObjectInfo-1"></a><span class="type">void</span> QObject::<span class="name">dumpObjectInfo</span>()</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>This is an overloaded function.</p>
<p>Dumps information about signal connections, etc. for this object to the debug output.</p>
<p><b>See also </b><a href="qobject.html#dumpObjectTree">dumpObjectTree</a>().</p>
<!-- @@@dumpObjectInfo -->
<!-- $$$dumpObjectTree$$$dumpObjectTree -->
<h3 class="fn" id="dumpObjectTree-1"><a name="dumpObjectTree-1"></a><span class="type">void</span> QObject::<span class="name">dumpObjectTree</span>()</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>This is an overloaded function.</p>
<p>Dumps a tree of children to the debug output.</p>
<p><b>See also </b><a href="qobject.html#dumpObjectInfo">dumpObjectInfo</a>().</p>
<!-- @@@dumpObjectTree -->
<!-- $$$trUtf8[overload1]$$$trUtf8constchar*constchar*int -->
<h3 class="fn" id="trUtf8"><a name="trUtf8"></a><code>[static] </code><span class="type"><a href="qstring.html">QString</a></span> QObject::<span class="name">trUtf8</span>(const <span class="type">char</span> *<i>sourceText</i>, const <span class="type">char</span> *<i>disambiguation</i> = Q_OBJECT, <span class="type">int</span> <i>n</i> = Q_OBJECT)</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>Returns a translated version of <i>sourceText</i>, or <a href="qstring.html#fromUtf8">QString::fromUtf8</a>(<i>sourceText</i>) if there is no appropriate version. It is otherwise identical to tr(<i>sourceText</i>, <i>disambiguation</i>, <i>n</i>).</p>
<p><b>Warning:</b> This method is reentrant only if all translators are installed <i>before</i> calling this method. Installing or removing translators while performing translations is not supported. Doing so will probably result in crashes or other undesirable behavior.</p>
<p><b>Warning:</b> For portability reasons, we recommend that you use escape sequences for specifying non-ASCII characters in string literals to trUtf8(). For example:</p>
<pre class="cpp">
label<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"F\374r \310lise"</span>));
</pre>
<p><b>See also </b><a href="qobject.html#tr">tr</a>(), <a href="qcoreapplication.html#translate">QCoreApplication::translate</a>(), and Internationalization with Qt.</p>
<!-- @@@trUtf8 -->
<h2>Related Non-Members</h2>
<!-- $$$qFindChild[overload1]$$$qFindChildconstQObject*constQString& -->
<h3 class="fn" id="qFindChild"><a name="qFindChild"></a><span class="type">T</span> <span class="name">qFindChild</span>(const <span class="type"><a href="qobject.html#QObject">QObject</a></span> *<i>obj</i>, const <span class="type"><a href="qstring.html">QString</a></span> &<i>name</i> = QString())</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>This function overloads <a href="qobject.html#qFindChildren">qFindChildren</a>().</p>
<p>This function is equivalent to <i>obj</i>-><a href="qobject.html#findChild">findChild</a><T>(<i>name</i>).</p>
<p><b>Note: </b>This function was provided as a workaround for MSVC 6 which did not support member template functions. It is advised to use the other form in new code.</p><p><b>See also </b><a href="qobject.html#findChild">QObject::findChild</a>().</p>
<!-- @@@qFindChild -->
<!-- $$$qFindChildren[overload1]$$$qFindChildrenconstQObject*constQString& -->
<h3 class="fn" id="qFindChildren"><a name="qFindChildren"></a><span class="type"><a href="qlist.html">QList</a></span><<span class="type">T</span>> <span class="name">qFindChildren</span>(const <span class="type"><a href="qobject.html#QObject">QObject</a></span> *<i>obj</i>, const <span class="type"><a href="qstring.html">QString</a></span> &<i>name</i> = QString())</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>This function overloads <a href="qobject.html#qFindChildren">qFindChildren</a>().</p>
<p>This function is equivalent to <i>obj</i>-><a href="qobject.html#findChildren">findChildren</a><T>(<i>name</i>).</p>
<p><b>Note: </b>This function was provided as a workaround for MSVC 6 which did not support member template functions. It is advised to use the other form in new code.</p><p><b>See also </b><a href="qobject.html#findChildren">QObject::findChildren</a>().</p>
<!-- @@@qFindChildren -->
<h2>Macro Documentation</h2>
<!-- $$$Q_ENUMS[overload1]$$$Q_ENUMS... -->
<h3 class="fn" id="Q_ENUMS"><a name="Q_ENUMS"></a><span class="name">Q_ENUMS</span>(<i> ...</i>)</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>This macro registers one or several enum types to the meta-object system.</p>
<p>For example:</p>
<pre class="cpp">
<span class="keyword">class</span> MyClass : <span class="keyword">public</span> <span class="type"><a href="qobject.html">QObject</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
MyClass(<span class="type"><a href="qobject.html">QObject</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>);
<span class="operator">~</span>MyClass();
<span class="keyword">enum</span> Priority { High<span class="operator">,</span> Low<span class="operator">,</span> VeryHigh<span class="operator">,</span> VeryLow };
Q_ENUM(Priority)
<span class="type">void</span> setPriority(Priority priority);
Priority priority() <span class="keyword">const</span>;
};
</pre>
<p>If you want to register an enum that is declared in another class, the enum must be fully qualified with the name of the class defining it. In addition, the class <i>defining</i> the enum has to inherit <a href="qobject.html">QObject</a> as well as declare the enum using Q_ENUMS().</p>
<p>In new code, you should prefer the use of the <a href="qobject.html#Q_ENUM">Q_ENUM</a>() macro, which makes the type available also to the meta type system. For instance, <a href="qmetaenum.html#fromType">QMetaEnum::fromType</a>() will not work with types declared with Q_ENUMS().</p>
<p><b>See also </b><a href="properties.html">Qt's Property System</a>.</p>
<!-- @@@Q_ENUMS -->
<!-- $$$Q_FLAGS[overload1]$$$Q_FLAGS... -->
<h3 class="fn" id="Q_FLAGS"><a name="Q_FLAGS"></a><span class="name">Q_FLAGS</span>(<i> ...</i>)</h3>
<p>This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.</p>
<p>This macro registers one or several <a href="qflags.html">flags types</a> with the meta-object system. It is typically used in a class definition to declare that values of a given enum can be used as flags and combined using the bitwise OR operator.</p>
<p><b>Note: </b>This macro takes care of registering individual flag values with the meta-object system, so it is unnecessary to use <a href="qobject-obsolete.html#Q_ENUMS">Q_ENUMS</a>() in addition to this macro.</p><p>In new code, you should prefer the use of the <a href="qobject.html#Q_FLAG">Q_FLAG</a>() macro, which makes the type available also to the meta type system.</p>
<p><b>See also </b><a href="properties.html">Qt's Property System</a>.</p>
<!-- @@@Q_FLAGS -->
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