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188 lines
9.7 KiB
188 lines
9.7 KiB
14 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qmetaobject.cpp:80 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>QMetaObject Class</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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a:link { color: #004faf; text-decoration: none }
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a:visited { color: #672967; text-decoration: none }
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body { background: #ffffff; color: black; }
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--></style>
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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| <a href="classes.html">
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<font color="#004faf">All Classes</font></a>
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| <a href="mainclasses.html">
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<font color="#004faf">Main Classes</font></a>
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<font color="#004faf">Annotated</font></a>
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<font color="#004faf">Grouped Classes</font></a>
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QMetaObject Class Reference</h1>
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<p>The QMetaObject class contains meta information about Qt objects.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qmetaobject-h.html">qmetaobject.h</a>></tt>
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<p><a href="qmetaobject-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn>const char * <a href="#className"><b>className</b></a> () const</li>
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<li class=fn>const char * <a href="#superClassName"><b>superClassName</b></a> () const</li>
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<li class=fn>QMetaObject * <a href="#superClass"><b>superClass</b></a> () const</li>
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<li class=fn>bool <a href="#inherits"><b>inherits</b></a> ( const char * clname ) const</li>
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<li class=fn>int <a href="#numSlots"><b>numSlots</b></a> ( bool super = FALSE ) const</li>
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<li class=fn>int <a href="#numSignals"><b>numSignals</b></a> ( bool super = FALSE ) const</li>
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<li class=fn>QStrList <a href="#slotNames"><b>slotNames</b></a> ( bool super = FALSE ) const</li>
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<li class=fn>QStrList <a href="#signalNames"><b>signalNames</b></a> ( bool super = FALSE ) const</li>
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<li class=fn>int <a href="#numClassInfo"><b>numClassInfo</b></a> ( bool super = FALSE ) const</li>
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<li class=fn>const QClassInfo * <a href="#classInfo"><b>classInfo</b></a> ( int index, bool super = FALSE ) const</li>
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<li class=fn>const char * <a href="#classInfo-2"><b>classInfo</b></a> ( const char * name, bool super = FALSE ) const</li>
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<li class=fn>const QMetaProperty * <a href="#property"><b>property</b></a> ( int index, bool super = FALSE ) const</li>
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<li class=fn>int <a href="#findProperty"><b>findProperty</b></a> ( const char * name, bool super = FALSE ) const</li>
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<li class=fn>QStrList <a href="#propertyNames"><b>propertyNames</b></a> ( bool super = FALSE ) const</li>
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<li class=fn>int <a href="#numProperties"><b>numProperties</b></a> ( bool super = FALSE ) const</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The QMetaObject class contains meta information about Qt objects.
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<p>
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<p> The Meta Object System in Qt is responsible for the signals and
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slots inter-object communication mechanism, runtime type
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information and the property system. All meta information in Qt is
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kept in a single instance of QMetaObject per class.
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<p> This class is not normally required for application programming.
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But if you write meta applications, such as scripting engines or
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GUI builders, you might find these functions useful:
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<ul>
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<li> <a href="#className">className</a>() to get the name of a class.
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<li> <a href="#superClassName">superClassName</a>() to get the name of the superclass.
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<li> <a href="#inherits">inherits</a>(), the function called by <a href="qobject.html#inherits">QObject::inherits</a>().
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<li> <a href="#superClass">superClass</a>() to access the superclass's <a href="metaobjects.html#meta-object">meta object</a>.
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<li> <a href="#numSlots">numSlots</a>(), <a href="#numSignals">numSignals</a>(), <a href="#slotNames">slotNames</a>(), and <a href="#signalNames">signalNames</a>() to get
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information about a class's signals and slots.
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<li> <a href="#property">property</a>() and <a href="#propertyNames">propertyNames</a>() to obtain information about a
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class's properties.
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</ul>
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<p> Classes may have a list of name-value pairs of class information.
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The number of pairs is returned by <a href="#numClassInfo">numClassInfo</a>(), and values are
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returned by <a href="#classInfo">classInfo</a>().
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<p> <p>See also <a href="moc.html">moc (Meta Object Compiler)</a> and <a href="objectmodel.html">Object Model</a>.
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<p>
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn>const QClassInfo * <a name="classInfo"></a>QMetaObject::classInfo ( int index, bool super = FALSE ) const
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</h3>
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Returns the class information with index <em>index</em> or 0 if no such
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information exists.
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<p> If <em>super</em> is TRUE, inherited class information is included.
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<h3 class=fn>const char * <a name="classInfo-2"></a>QMetaObject::classInfo ( const char * name, bool super = FALSE ) const
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</h3>
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This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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<p> Returns the class information with name <em>name</em> or 0 if no such
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information exists.
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<p> If <em>super</em> is TRUE, inherited class information is included.
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<h3 class=fn>const char * <a name="className"></a>QMetaObject::className () const
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</h3>
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<p> Returns the class name.
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<p> <p>See also <a href="qobject.html#className">QObject::className</a>() and <a href="#superClassName">superClassName</a>().
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<h3 class=fn>int <a name="findProperty"></a>QMetaObject::findProperty ( const char * name, bool super = FALSE ) const
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</h3>
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Returns the index for the property with name <em>name</em> or -1 if no
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such property exists.
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<p> If <em>super</em> is TRUE, inherited properties are included.
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<p> <p>See also <a href="#property">property</a>() and <a href="#propertyNames">propertyNames</a>().
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<h3 class=fn>bool <a name="inherits"></a>QMetaObject::inherits ( const char * clname ) const
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</h3>
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Returns TRUE if this class inherits <em>clname</em> within the <a href="metaobjects.html#meta-object">meta object</a> inheritance chain; otherwise returns FALSE.
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<p> (A class is considered to inherit itself.)
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<h3 class=fn>int <a name="numClassInfo"></a>QMetaObject::numClassInfo ( bool super = FALSE ) const
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</h3>
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Returns the number of items of class information available for
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this class.
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<p> If <em>super</em> is TRUE, inherited class information is included.
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<h3 class=fn>int <a name="numProperties"></a>QMetaObject::numProperties ( bool super = FALSE ) const
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</h3>
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Returns the number of properties for this class.
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<p> If <em>super</em> is TRUE, inherited properties are included.
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<p> <p>See also <a href="#propertyNames">propertyNames</a>().
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<h3 class=fn>int <a name="numSignals"></a>QMetaObject::numSignals ( bool super = FALSE ) const
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</h3>
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Returns the number of signals for this class.
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<p> If <em>super</em> is TRUE, inherited signals are included.
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<p> <p>See also <a href="#signalNames">signalNames</a>().
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<h3 class=fn>int <a name="numSlots"></a>QMetaObject::numSlots ( bool super = FALSE ) const
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</h3>
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Returns the number of slots for this class.
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<p> If <em>super</em> is TRUE, inherited slots are included.
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<p> <p>See also <a href="#slotNames">slotNames</a>().
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<h3 class=fn>const <a href="qmetaproperty.html">QMetaProperty</a> * <a name="property"></a>QMetaObject::property ( int index, bool super = FALSE ) const
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</h3>
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Returns the property meta data for the property at index <em>index</em>
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or 0 if no such property exists.
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<p> If <em>super</em> is TRUE, inherited properties are included.
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<p> <p>See also <a href="#propertyNames">propertyNames</a>().
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<h3 class=fn><a href="qstrlist.html">QStrList</a> <a name="propertyNames"></a>QMetaObject::propertyNames ( bool super = FALSE ) const
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</h3>
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Returns a list with the names of all this class's properties.
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<p> If <em>super</em> is TRUE, inherited properties are included.
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<p> <p>See also <a href="#property">property</a>().
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<h3 class=fn><a href="qstrlist.html">QStrList</a> <a name="signalNames"></a>QMetaObject::signalNames ( bool super = FALSE ) const
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</h3>
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Returns a list with the names of all this class's signals.
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<p> If <em>super</em> is TRUE, inherited signals are included.
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<h3 class=fn><a href="qstrlist.html">QStrList</a> <a name="slotNames"></a>QMetaObject::slotNames ( bool super = FALSE ) const
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</h3>
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Returns a list with the names of all this class's slots.
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<p> If <em>super</em> is TRUE, inherited slots are included.
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<p> <p>See also <a href="#numSlots">numSlots</a>().
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<h3 class=fn><a href="qmetaobject.html">QMetaObject</a> * <a name="superClass"></a>QMetaObject::superClass () const
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</h3>
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<p> Returns the <a href="metaobjects.html#meta-object">meta object</a> of the super class or 0 if there is no
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such object.
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<h3 class=fn>const char * <a name="superClassName"></a>QMetaObject::superClassName () const
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</h3>
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<p> Returns the class name of the superclass or 0 if there is no
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superclass in the <a href="qobject.html">QObject</a> hierachy.
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<p> <p>See also <a href="#className">className</a>().
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">Qt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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</html>
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