343 lines
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343 lines
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<h1 class="title">Qt 3 Support Members for QVariant</h1>
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<p><b>The following class members are part of the <a href="qt3support.html">Qt 3 support layer</a>.</b> They are provided to help you port old code to Qt 4. We advise against using them in new code.</p>
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<p><ul><li><a href="qvariant.html">QVariant class reference</a></li></ul></p>
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<h2>Public Functions</h2>
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<table class="alignedsummary">
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<tr><td class="memItemLeft topAlign rightAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#QVariant-40">QVariant</a></b> ( bool <i>b</i>, int <i>dummy</i> )</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QBitArray & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asBitArray">asBitArray</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> bool & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asBool">asBool</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QByteArray & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asByteArray">asByteArray</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QByteArray & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asCString">asCString</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QDate & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asDate">asDate</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QDateTime & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asDateTime">asDateTime</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> double & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asDouble">asDouble</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> int & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asInt">asInt</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QList<QVariant> & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asList">asList</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> qlonglong & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asLongLong">asLongLong</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QMap<QString, QVariant> & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asMap">asMap</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QPoint & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asPoint">asPoint</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QRect & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asRect">asRect</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QSize & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asSize">asSize</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QString & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asString">asString</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QStringList & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asStringList">asStringList</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> QTime & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asTime">asTime</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> uint & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asUInt">asUInt</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> qulonglong & </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#asULongLong">asULongLong</a></b> ()</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#canCast">canCast</a></b> ( Type <i>t</i> ) const</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#cast">cast</a></b> ( Type <i>t</i> )</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> const QByteArray </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#toCString">toCString</a></b> () const</td></tr>
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</table>
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<h2>Related Non-Members</h2>
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<table class="alignedsummary">
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<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#qVariantCanConvert">qVariantCanConvert</a></b> ( const QVariant & <i>value</i> )</td></tr>
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<tr><td class="memItemLeft topAlign rightAlign"> T </td><td class="memItemRight bottomAlign"><b><a href="qvariant-qt3.html#qVariantValue">qVariantValue</a></b> ( const QVariant & <i>value</i> )</td></tr>
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</table>
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<h2>Member Function Documentation</h2>
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<!-- $$$QVariant$$$QVariantboolint -->
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<h3 class="fn"><a name="QVariant-40"></a>QVariant::<span class="name">QVariant</span> ( <span class="type">bool</span> <i>b</i>, <span class="type">int</span> <i>dummy</i> )</h3>
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<p>Use the <a href="qvariant.html">QVariant</a>(bool) constructor instead.</p>
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<!-- @@@QVariant -->
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<!-- $$$asBitArray[overload1]$$$asBitArray -->
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<h3 class="fn"><a name="asBitArray"></a><span class="type"><a href="qbitarray.html">QBitArray</a></span> & QVariant::<span class="name">asBitArray</span> ()</h3>
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<p>Use <a href="qvariant.html#toBitArray">toBitArray</a>() instead.</p>
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<!-- @@@asBitArray -->
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<!-- $$$asBool[overload1]$$$asBool -->
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<h3 class="fn"><a name="asBool"></a><span class="type">bool</span> & QVariant::<span class="name">asBool</span> ()</h3>
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<p>Use <a href="qvariant.html#toBool">toBool</a>() instead.</p>
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<!-- @@@asBool -->
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<!-- $$$asByteArray[overload1]$$$asByteArray -->
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<h3 class="fn"><a name="asByteArray"></a><span class="type"><a href="qbytearray.html">QByteArray</a></span> & QVariant::<span class="name">asByteArray</span> ()</h3>
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<p>Use <a href="qvariant.html#toByteArray">toByteArray</a>() instead.</p>
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<!-- @@@asByteArray -->
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<!-- $$$asCString[overload1]$$$asCString -->
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<h3 class="fn"><a name="asCString"></a><span class="type"><a href="qbytearray.html">QByteArray</a></span> & QVariant::<span class="name">asCString</span> ()</h3>
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<p>Use <a href="qvariant.html#toByteArray">toByteArray</a>() instead.</p>
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<!-- @@@asCString -->
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<!-- $$$asDate[overload1]$$$asDate -->
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<h3 class="fn"><a name="asDate"></a><span class="type"><a href="qdate.html">QDate</a></span> & QVariant::<span class="name">asDate</span> ()</h3>
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<p>Use <a href="qvariant.html#toDate">toDate</a>() instead.</p>
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<!-- @@@asDate -->
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<!-- $$$asDateTime[overload1]$$$asDateTime -->
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<h3 class="fn"><a name="asDateTime"></a><span class="type"><a href="qdatetime.html">QDateTime</a></span> & QVariant::<span class="name">asDateTime</span> ()</h3>
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<p>Use <a href="qvariant.html#toDateTime">toDateTime</a>() instead.</p>
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<!-- @@@asDateTime -->
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<!-- $$$asDouble[overload1]$$$asDouble -->
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<h3 class="fn"><a name="asDouble"></a><span class="type">double</span> & QVariant::<span class="name">asDouble</span> ()</h3>
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<p>Use <a href="qvariant.html#toDouble">toDouble</a>() instead.</p>
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<!-- @@@asDouble -->
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<!-- $$$asInt[overload1]$$$asInt -->
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<h3 class="fn"><a name="asInt"></a><span class="type">int</span> & QVariant::<span class="name">asInt</span> ()</h3>
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<p>Use <a href="qvariant.html#toInt">toInt</a>() instead.</p>
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<!-- @@@asInt -->
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<!-- $$$asList[overload1]$$$asList -->
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<h3 class="fn"><a name="asList"></a><span class="type"><a href="qlist.html">QList</a></span><<span class="type">QVariant</span>> & QVariant::<span class="name">asList</span> ()</h3>
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<p>Use <a href="qvariant.html#toList">toList</a>() instead.</p>
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<!-- @@@asList -->
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<!-- $$$asLongLong[overload1]$$$asLongLong -->
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<h3 class="fn"><a name="asLongLong"></a><span class="type"><a href="qtglobal.html#qlonglong-typedef">qlonglong</a></span> & QVariant::<span class="name">asLongLong</span> ()</h3>
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<p>Use <a href="qvariant.html#toLongLong">toLongLong</a>() instead.</p>
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<!-- @@@asLongLong -->
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<!-- $$$asMap[overload1]$$$asMap -->
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<h3 class="fn"><a name="asMap"></a><span class="type"><a href="qmap.html">QMap</a></span><<span class="type"><a href="qstring.html">QString</a></span>, <span class="type">QVariant</span>> & QVariant::<span class="name">asMap</span> ()</h3>
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<p>Use <a href="qvariant.html#toMap">toMap</a>() instead.</p>
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<!-- @@@asMap -->
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<!-- $$$asPoint[overload1]$$$asPoint -->
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<h3 class="fn"><a name="asPoint"></a><span class="type"><a href="qpoint.html">QPoint</a></span> & QVariant::<span class="name">asPoint</span> ()</h3>
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<p>Use <a href="qvariant.html#toPoint">toPoint</a>() instead.</p>
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<!-- @@@asPoint -->
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<!-- $$$asRect[overload1]$$$asRect -->
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<h3 class="fn"><a name="asRect"></a><span class="type"><a href="qrect.html">QRect</a></span> & QVariant::<span class="name">asRect</span> ()</h3>
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<p>Use <a href="qvariant.html#toRect">toRect</a>() instead.</p>
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<!-- @@@asRect -->
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<!-- $$$asSize[overload1]$$$asSize -->
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<h3 class="fn"><a name="asSize"></a><span class="type"><a href="qsize.html">QSize</a></span> & QVariant::<span class="name">asSize</span> ()</h3>
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<p>Use <a href="qvariant.html#toSize">toSize</a>() instead.</p>
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<!-- @@@asSize -->
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<!-- $$$asString[overload1]$$$asString -->
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<h3 class="fn"><a name="asString"></a><span class="type"><a href="qstring.html">QString</a></span> & QVariant::<span class="name">asString</span> ()</h3>
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<p>Use <a href="qvariant.html#toString">toString</a>() instead.</p>
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<!-- @@@asString -->
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<!-- $$$asStringList[overload1]$$$asStringList -->
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<h3 class="fn"><a name="asStringList"></a><span class="type"><a href="qstringlist.html">QStringList</a></span> & QVariant::<span class="name">asStringList</span> ()</h3>
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<p>Use <a href="qvariant.html#toStringList">toStringList</a>() instead.</p>
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<!-- @@@asStringList -->
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<!-- $$$asTime[overload1]$$$asTime -->
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<h3 class="fn"><a name="asTime"></a><span class="type"><a href="qtime.html">QTime</a></span> & QVariant::<span class="name">asTime</span> ()</h3>
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<p>Use <a href="qvariant.html#toTime">toTime</a>() instead.</p>
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<!-- @@@asTime -->
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<!-- $$$asUInt[overload1]$$$asUInt -->
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<h3 class="fn"><a name="asUInt"></a><span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> & QVariant::<span class="name">asUInt</span> ()</h3>
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<p>Use <a href="qvariant.html#toUInt">toUInt</a>() instead.</p>
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<!-- @@@asUInt -->
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<!-- $$$asULongLong[overload1]$$$asULongLong -->
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<h3 class="fn"><a name="asULongLong"></a><span class="type"><a href="qtglobal.html#qulonglong-typedef">qulonglong</a></span> & QVariant::<span class="name">asULongLong</span> ()</h3>
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<p>Use <a href="qvariant.html#toULongLong">toULongLong</a>() instead.</p>
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<!-- @@@asULongLong -->
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<!-- $$$canCast[overload1]$$$canCastType -->
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<h3 class="fn"><a name="canCast"></a><span class="type">bool</span> QVariant::<span class="name">canCast</span> ( <span class="type"><a href="qvariant.html#Type-enum">Type</a></span> <i>t</i> ) const</h3>
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<p>Use <a href="qvariant.html#canConvert">canConvert</a>() instead.</p>
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<!-- @@@canCast -->
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<!-- $$$cast[overload1]$$$castType -->
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<h3 class="fn"><a name="cast"></a><span class="type">bool</span> QVariant::<span class="name">cast</span> ( <span class="type"><a href="qvariant.html#Type-enum">Type</a></span> <i>t</i> )</h3>
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|
<p>Use <a href="qvariant.html#convert">convert</a>() instead.</p>
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<!-- @@@cast -->
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<!-- $$$toCString[overload1]$$$toCString -->
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<h3 class="fn"><a name="toCString"></a>const <span class="type"><a href="qbytearray.html">QByteArray</a></span> QVariant::<span class="name">toCString</span> () const</h3>
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<p>Use <a href="qvariant.html#toByteArray">toByteArray</a>() instead.</p>
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|
<!-- @@@toCString -->
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<h2>Related Non-Members</h2>
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|
<!-- $$$qVariantCanConvert[overload1]$$$qVariantCanConvertconstQVariant& -->
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<h3 class="fn"><a name="qVariantCanConvert"></a><span class="type">bool</span> <span class="name">qVariantCanConvert</span> ( const <span class="type">QVariant</span> & <i>value</i> )</h3>
|
|
<p>Returns true if the given <i>value</i> can be converted to the template type specified; otherwise returns false.</p>
|
|
<p>This function is equivalent to QVariant::canConvert(<i>value</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="qvariant.html#canConvert">QVariant::canConvert</a>().</p>
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|
<!-- @@@qVariantCanConvert -->
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<!-- $$$qVariantValue[overload1]$$$qVariantValueconstQVariant& -->
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<h3 class="fn"><a name="qVariantValue"></a><span class="type">T</span> <span class="name">qVariantValue</span> ( const <span class="type">QVariant</span> & <i>value</i> )</h3>
|
|
<p>Returns the given <i>value</i> converted to the template type <tt>T</tt>.</p>
|
|
<p>This function is equivalent to <a href="qvariant.html#value">QVariant::value</a><T>(<i>value</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="qvariant.html#value">QVariant::value</a>() and <a href="qvariant.html#qvariant_cast">qvariant_cast</a>().</p>
|
|
<!-- @@@qVariantValue -->
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