QMetaObject(3qt)

1QMetaObject(3qt)                                              QMetaObject(3qt)
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NAME

6       QMetaObject - Meta information about Qt objects
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SYNOPSIS

9       #include <qmetaobject.h>
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11   Public Members
12       const char * className () const
13       const char * superClassName () const
14       QMetaObject * superClass () const
15       bool inherits ( const char * clname ) const
16       int numSlots ( bool super = FALSE ) const
17       int numSignals ( bool super = FALSE ) const
18       QStrList slotNames ( bool super = FALSE ) const
19       QStrList signalNames ( bool super = FALSE ) const
20       int numClassInfo ( bool super = FALSE ) const
21       const QClassInfo * classInfo ( int index, bool super = FALSE ) const
22       const char * classInfo ( const char * name, bool super = FALSE ) const
23       const QMetaProperty * property ( int index, bool super = FALSE ) const
24       int findProperty ( const char * name, bool super = FALSE ) const
25       QStrList propertyNames ( bool super = FALSE ) const
26       int numProperties ( bool super = FALSE ) const
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DESCRIPTION

29       The QMetaObject class contains meta information about Qt objects.
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31       The Meta Object System in Qt is responsible for the signals and slots
32       inter-object communication mechanism, runtime type information and the
33       property system. All meta information in Qt is kept in a single
34       instance of QMetaObject per class.
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36       This class is not normally required for application programming. But if
37       you write meta applications, such as scripting engines or GUI builders,
38       you might find these functions useful:
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40       className() to get the name of a class.
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42       superClassName() to get the name of the superclass.
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44       inherits(), the function called by QObject::inherits().
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46       superClass() to access the superclass's meta object.
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48       numSlots(), numSignals(), slotNames(), and signalNames() to get
49       information about a class's signals and slots.
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51       property() and propertyNames() to obtain information about a class's
52       properties.
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54       Classes may have a list of name-value pairs of class information. The
55       number of pairs is returned by numClassInfo(), and values are returned
56       by classInfo().
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58       See also moc (Meta Object Compiler) and Object Model.
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MEMBER FUNCTION DOCUMENTATION

const QClassInfo * QMetaObject::classInfo ( int index, bool super = FALSE )

62       const
63       Returns the class information with index index or 0 if no such
64       information exists.
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66       If super is TRUE, inherited class information is included.
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const char * QMetaObject::classInfo ( const char * name, bool super = FALSE )

69       const
70       This is an overloaded member function, provided for convenience. It
71       behaves essentially like the above function.
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73       Returns the class information with name name or 0 if no such
74       information exists.
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76       If super is TRUE, inherited class information is included.
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const char * QMetaObject::className () const

79       Returns the class name.
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81       See also QObject::className() and superClassName().
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int QMetaObject::findProperty ( const char * name, bool super = FALSE ) const

84       Returns the index for the property with name name or -1 if no such
85       property exists.
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87       If super is TRUE, inherited properties are included.
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89       See also property() and propertyNames().
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bool QMetaObject::inherits ( const char * clname ) const

92       Returns TRUE if this class inherits clname within the meta object
93       inheritance chain; otherwise returns FALSE.
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95       (A class is considered to inherit itself.)
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int QMetaObject::numClassInfo ( bool super = FALSE ) const

98       Returns the number of items of class information available for this
99       class.
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101       If super is TRUE, inherited class information is included.
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int QMetaObject::numProperties ( bool super = FALSE ) const

104       Returns the number of properties for this class.
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106       If super is TRUE, inherited properties are included.
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108       See also propertyNames().
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int QMetaObject::numSignals ( bool super = FALSE ) const

111       Returns the number of signals for this class.
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113       If super is TRUE, inherited signals are included.
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115       See also signalNames().
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int QMetaObject::numSlots ( bool super = FALSE ) const

118       Returns the number of slots for this class.
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120       If super is TRUE, inherited slots are included.
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122       See also slotNames().
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const QMetaProperty * QMetaObject::property ( int index, bool super = FALSE )

125       const
126       Returns the property meta data for the property at index index or 0 if
127       no such property exists.
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129       If super is TRUE, inherited properties are included.
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131       See also propertyNames().
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QStrList QMetaObject::propertyNames ( bool super = FALSE ) const

134       Returns a list with the names of all this class's properties.
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136       If super is TRUE, inherited properties are included.
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138       See also property().
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QStrList QMetaObject::signalNames ( bool super = FALSE ) const

141       Returns a list with the names of all this class's signals.
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143       If super is TRUE, inherited signals are included.
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QStrList QMetaObject::slotNames ( bool super = FALSE ) const

146       Returns a list with the names of all this class's slots.
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148       If super is TRUE, inherited slots are included.
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150       See also numSlots().
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QMetaObject * QMetaObject::superClass () const

153       Returns the meta object of the super class or 0 if there is no such
154       object.
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const char * QMetaObject::superClassName () const

157       Returns the class name of the superclass or 0 if there is no superclass
158       in the QObject hierachy.
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160       See also className().
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COPYRIGHT

168       Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the
169       license file included in the distribution for a complete license
170       statement.
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AUTHOR

173       Generated automatically from the source code.
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BUGS

176       If you find a bug in Qt, please report it as described in
177       http://doc.trolltech.com/bughowto.html.  Good bug reports help us to
178       help you. Thank you.
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180       The definitive Qt documentation is provided in HTML format; it is
181       located at $QTDIR/doc/html and can be read using Qt Assistant or with a
182       web browser. This man page is provided as a convenience for those users
183       who prefer man pages, although this format is not officially supported
184       by Trolltech.
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186       If you find errors in this manual page, please report them to qt-
187       bugs@trolltech.com.  Please include the name of the manual page
188       (qmetaobject.3qt) and the Qt version (3.3.8).
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192Trolltech AS                    2 February 2007               QMetaObject(3qt)