<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qvariant.cpp -->
<title>Obsolete Members for QVariant | Qt Core 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="qtcore-index.html">Qt Core</a></td><td ><a href="qtcore-module.html">C++ Classes</a></td><td >QVariant</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtcore-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="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">Obsolete Members for QVariant</h1>
<p><b>The following members of class <a href="qvariant.html">QVariant</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 Types</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>enum </td><td class="memItemRight bottomAlign"><b><a href="qvariant-obsolete.html#Type-enum">Type</a></b> { Invalid, BitArray, Bitmap, Bool, ..., UserType }</td></tr>
</table></div>
<h2>Related Non-Members</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>bool </td><td class="memItemRight bottomAlign"><b><a href="qvariant-obsolete.html#qVariantCanConvert">qVariantCanConvert</a></b>(const QVariant &<i>value</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>QVariant </td><td class="memItemRight bottomAlign"><b><a href="qvariant-obsolete.html#qVariantFromValue-1">qVariantFromValue</a></b>(const T &<i>value</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>void </td><td class="memItemRight bottomAlign"><b><a href="qvariant-obsolete.html#qVariantSetValue-1">qVariantSetValue</a></b>(QVariant &<i>variant</i>, const T &<i>value</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> <code>(obsolete) </code>T </td><td class="memItemRight bottomAlign"><b><a href="qvariant-obsolete.html#qVariantValue">qVariantValue</a></b>(const QVariant &<i>value</i>)</td></tr>
</table></div>
<h2>Related Non-Members</h2>
<!-- $$$qVariantCanConvert[overload1]$$$qVariantCanConvertconstQVariant& -->
<h3 class="fn" id="qVariantCanConvert"><a name="qVariantCanConvert"></a><span class="type">bool</span> <span class="name">qVariantCanConvert</span>(const <span class="type"><a href="qvariant.html#QVariant">QVariant</a></span> &<i>value</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>Returns <code>true</code> if the given <i>value</i> can be converted to the template type specified; otherwise returns <code>false</code>.</p>
<p>This function is equivalent to <a href="qvariant.html#canConvert">QVariant::canConvert</a>(<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-1">QVariant::canConvert</a>().</p>
<!-- @@@qVariantCanConvert -->
<!-- $$$qVariantFromValue$$$qVariantFromValueconstT& -->
<h3 class="fn" id="qVariantFromValue-1"><a name="qVariantFromValue-1"></a><span class="type"><a href="qvariant.html#QVariant">QVariant</a></span> <span class="name">qVariantFromValue</span>(const <span class="type">T</span> &<i>value</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>Returns a variant containing a copy of the given <i>value</i> with template type <code>T</code>.</p>
<p>This function is equivalent to <a href="qvariant.html#fromValue">QVariant::fromValue</a>(<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>For example, a <a href="qobject.html">QObject</a> pointer can be stored in a variant with the following code:</p>
<pre class="cpp">
<span class="type"><a href="qobject.html">QObject</a></span> <span class="operator">*</span>object <span class="operator">=</span> getObjectFromSomewhere();
<span class="type"><a href="qvariant.html">QVariant</a></span> data <span class="operator">=</span> <span class="type"><a href="qvariant.html">QVariant</a></span><span class="operator">::</span>fromValue(object);
</pre>
<p><b>See also </b><a href="qvariant.html#fromValue">QVariant::fromValue</a>().</p>
<!-- @@@qVariantFromValue -->
<!-- $$$qVariantSetValue$$$qVariantSetValueQVariant&constT& -->
<h3 class="fn" id="qVariantSetValue-1"><a name="qVariantSetValue-1"></a><span class="type">void</span> <span class="name">qVariantSetValue</span>(<span class="type"><a href="qvariant.html#QVariant">QVariant</a></span> &<i>variant</i>, const <span class="type">T</span> &<i>value</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>Sets the contents of the given <i>variant</i> to a copy of the <i>value</i> with the specified template type <code>T</code>.</p>
<p>This function is equivalent to <a href="qvariant.html#setValue">QVariant::setValue</a>(<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#setValue">QVariant::setValue</a>().</p>
<!-- @@@qVariantSetValue -->
<!-- $$$qVariantValue[overload1]$$$qVariantValueconstQVariant& -->
<h3 class="fn" id="qVariantValue"><a name="qVariantValue"></a><span class="type">T</span> <span class="name">qVariantValue</span>(const <span class="type"><a href="qvariant.html#QVariant">QVariant</a></span> &<i>value</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>Returns the given <i>value</i> converted to the template type <code>T</code>.</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 -->
</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>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-updates
>
by-pkgid
>
d5e62c01ae8d1e579463c6a871dd44bf
>
files
>
945
