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Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li><a href="qtcore.html">QtCore</a></li> <li>QMetaEnum</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">QMetaEnum Class Reference</h1> <!-- $$$QMetaEnum-brief --> <p>The QMetaEnum class provides meta-data about an enumerator. <a href="#details">More...</a></p> <!-- @@@QMetaEnum --> <pre class="cpp"> <span class="preprocessor">#include <QMetaEnum></span></pre><ul> <li><a href="qmetaenum-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#isFlag">isFlag</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#isValid">isValid</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> const char * </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#key">key</a></b> ( int <i>index</i> ) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#keyCount">keyCount</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#keyToValue">keyToValue</a></b> ( const char * <i>key</i> ) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#keysToValue">keysToValue</a></b> ( const char * <i>keys</i> ) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> const char * </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#name">name</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> const char * </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#scope">scope</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#value">value</a></b> ( int <i>index</i> ) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> const char * </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#valueToKey">valueToKey</a></b> ( int <i>value</i> ) const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QByteArray </td><td class="memItemRight bottomAlign"><b><a href="qmetaenum.html#valueToKeys">valueToKeys</a></b> ( int <i>value</i> ) const</td></tr> </table> <a name="details"></a> <!-- $$$QMetaEnum-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The QMetaEnum class provides meta-data about an enumerator.</p> <p>Use <a href="qmetaenum.html#name">name</a>() for the enumerator's name. The enumerator's keys (names of each enumerated item) are returned by <a href="qmetaenum.html#key">key</a>(); use <a href="qmetaenum.html#keyCount">keyCount</a>() to find the number of keys. <a href="qmetaenum.html#isFlag">isFlag</a>() returns whether the enumerator is meant to be used as a flag, meaning that its values can be combined using the OR operator.</p> <p>The conversion functions <a href="qmetaenum.html#keyToValue">keyToValue</a>(), <a href="qmetaenum.html#valueToKey">valueToKey</a>(), <a href="qmetaenum.html#keysToValue">keysToValue</a>(), and <a href="qmetaenum.html#valueToKeys">valueToKeys</a>() allow conversion between the integer representation of an enumeration or set value and its literal representation. The <a href="qmetaenum.html#scope">scope</a>() function returns the class scope this enumerator was declared in.</p> </div> <p><b>See also </b><a href="qmetaobject.html">QMetaObject</a>, <a href="qmetamethod.html">QMetaMethod</a>, and <a href="qmetaproperty.html">QMetaProperty</a>.</p> <!-- @@@QMetaEnum --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$isFlag[overload1]$$$isFlag --> <h3 class="fn"><a name="isFlag"></a><span class="type">bool</span> QMetaEnum::<span class="name">isFlag</span> () const</h3> <p>Returns true if this enumerator is used as a flag; otherwise returns false.</p> <p>When used as flags, enumerators can be combined using the OR operator.</p> <p><b>See also </b><a href="qmetaenum.html#keysToValue">keysToValue</a>() and <a href="qmetaenum.html#valueToKeys">valueToKeys</a>().</p> <!-- @@@isFlag --> <!-- $$$isValid[overload1]$$$isValid --> <h3 class="fn"><a name="isValid"></a><span class="type">bool</span> QMetaEnum::<span class="name">isValid</span> () const</h3> <p>Returns true if this enum is valid (has a name); otherwise returns false.</p> <p><b>See also </b><a href="qmetaenum.html#name">name</a>().</p> <!-- @@@isValid --> <!-- $$$key[overload1]$$$keyint --> <h3 class="fn"><a name="key"></a>const <span class="type">char</span> * QMetaEnum::<span class="name">key</span> ( <span class="type">int</span> <i>index</i> ) const</h3> <p>Returns the key with the given <i>index</i>, or 0 if no such key exists.</p> <p><b>See also </b><a href="qmetaenum.html#keyCount">keyCount</a>(), <a href="qmetaenum.html#value">value</a>(), and <a href="qmetaenum.html#valueToKey">valueToKey</a>().</p> <!-- @@@key --> <!-- $$$keyCount[overload1]$$$keyCount --> <h3 class="fn"><a name="keyCount"></a><span class="type">int</span> QMetaEnum::<span class="name">keyCount</span> () const</h3> <p>Returns the number of keys.</p> <p><b>See also </b><a href="qmetaenum.html#key">key</a>().</p> <!-- @@@keyCount --> <!-- $$$keyToValue[overload1]$$$keyToValueconstchar* --> <h3 class="fn"><a name="keyToValue"></a><span class="type">int</span> QMetaEnum::<span class="name">keyToValue</span> ( const <span class="type">char</span> * <i>key</i> ) const</h3> <p>Returns the integer value of the given enumeration <i>key</i>, or -1 if <i>key</i> is not defined.</p> <p>For flag types, use <a href="qmetaenum.html#keysToValue">keysToValue</a>().</p> <p><b>See also </b><a href="qmetaenum.html#valueToKey">valueToKey</a>(), <a href="qmetaenum.html#isFlag">isFlag</a>(), and <a href="qmetaenum.html#keysToValue">keysToValue</a>().</p> <!-- @@@keyToValue --> <!-- $$$keysToValue[overload1]$$$keysToValueconstchar* --> <h3 class="fn"><a name="keysToValue"></a><span class="type">int</span> QMetaEnum::<span class="name">keysToValue</span> ( const <span class="type">char</span> * <i>keys</i> ) const</h3> <p>Returns the value derived from combining together the values of the <i>keys</i> using the OR operator, or -1 if <i>keys</i> is not defined. Note that the strings in <i>keys</i> must be '|'-separated.</p> <p><b>See also </b><a href="qmetaenum.html#isFlag">isFlag</a>(), <a href="qmetaenum.html#valueToKey">valueToKey</a>(), and <a href="qmetaenum.html#valueToKeys">valueToKeys</a>().</p> <!-- @@@keysToValue --> <!-- $$$name[overload1]$$$name --> <h3 class="fn"><a name="name"></a>const <span class="type">char</span> * QMetaEnum::<span class="name">name</span> () const</h3> <p>Returns the name of the enumerator (without the scope).</p> <p>For example, the <a href="qt.html#AlignmentFlag-enum">Qt::AlignmentFlag</a> enumeration has <tt>AlignmentFlag</tt> as the name and <a href="qt.html">Qt</a> as the scope.</p> <p><b>See also </b><a href="qmetaenum.html#isValid">isValid</a>() and <a href="qmetaenum.html#scope">scope</a>().</p> <!-- @@@name --> <!-- $$$scope[overload1]$$$scope --> <h3 class="fn"><a name="scope"></a>const <span class="type">char</span> * QMetaEnum::<span class="name">scope</span> () const</h3> <p>Returns the scope this enumerator was declared in.</p> <p>For example, the <a href="qt.html#AlignmentFlag-enum">Qt::AlignmentFlag</a> enumeration has <tt>Qt</tt> as the scope and <tt>AlignmentFlag</tt> as the name.</p> <p><b>See also </b><a href="qmetaenum.html#name">name</a>().</p> <!-- @@@scope --> <!-- $$$value[overload1]$$$valueint --> <h3 class="fn"><a name="value"></a><span class="type">int</span> QMetaEnum::<span class="name">value</span> ( <span class="type">int</span> <i>index</i> ) const</h3> <p>Returns the value with the given <i>index</i>; or returns -1 if there is no such value.</p> <p><b>See also </b><a href="qmetaenum.html#keyCount">keyCount</a>(), <a href="qmetaenum.html#key">key</a>(), and <a href="qmetaenum.html#keyToValue">keyToValue</a>().</p> <!-- @@@value --> <!-- $$$valueToKey[overload1]$$$valueToKeyint --> <h3 class="fn"><a name="valueToKey"></a>const <span class="type">char</span> * QMetaEnum::<span class="name">valueToKey</span> ( <span class="type">int</span> <i>value</i> ) const</h3> <p>Returns the string that is used as the name of the given enumeration <i>value</i>, or 0 if <i>value</i> is not defined.</p> <p>For flag types, use <a href="qmetaenum.html#valueToKeys">valueToKeys</a>().</p> <p><b>See also </b><a href="qmetaenum.html#isFlag">isFlag</a>() and <a href="qmetaenum.html#valueToKeys">valueToKeys</a>().</p> <!-- @@@valueToKey --> <!-- $$$valueToKeys[overload1]$$$valueToKeysint --> <h3 class="fn"><a name="valueToKeys"></a><span class="type"><a href="qbytearray.html">QByteArray</a></span> QMetaEnum::<span class="name">valueToKeys</span> ( <span class="type">int</span> <i>value</i> ) const</h3> <p>Returns a byte array of '|'-separated keys that represents the given <i>value</i>.</p> <p><b>See also </b><a href="qmetaenum.html#isFlag">isFlag</a>(), <a href="qmetaenum.html#valueToKey">valueToKey</a>(), and <a href="qmetaenum.html#keysToValue">keysToValue</a>().</p> <!-- @@@valueToKeys --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. 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