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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 > TQMetaObject Class Reference< / h1 >
< p > The TQMetaObject class contains meta information about TQt objects.
< a href = "#details" > More...< / a >
< p > < tt > #include < < a href = "qmetaobject-h.html" > ntqmetaobject.h< / a > > < / tt >
< p > < a href = "qmetaobject-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
< ul >
< li class = fn > const char * < a href = "#className" > < b > className< / b > < / a > () const< / li >
< li class = fn > const char * < a href = "#superClassName" > < b > superClassName< / b > < / a > () const< / li >
< li class = fn > TQMetaObject * < a href = "#superClass" > < b > superClass< / b > < / a > () const< / li >
< li class = fn > bool < a href = "#inherits" > < b > inherits< / b > < / a > ( const char * clname ) const< / li >
< li class = fn > int < a href = "#numSlots" > < b > numSlots< / b > < / a > ( bool super = FALSE ) const< / li >
< li class = fn > int < a href = "#numSignals" > < b > numSignals< / b > < / a > ( bool super = FALSE ) const< / li >
< li class = fn > TQStrList < a href = "#slotNames" > < b > slotNames< / b > < / a > ( bool super = FALSE ) const< / li >
< li class = fn > TQStrList < a href = "#signalNames" > < b > signalNames< / b > < / a > ( bool super = FALSE ) const< / li >
< li class = fn > int < a href = "#numClassInfo" > < b > numClassInfo< / b > < / a > ( bool super = FALSE ) const< / li >
< li class = fn > const TQClassInfo * < a href = "#classInfo" > < b > classInfo< / b > < / a > ( int index, bool super = FALSE ) const< / li >
< li class = fn > const char * < a href = "#classInfo-2" > < b > classInfo< / b > < / a > ( const char * name, bool super = FALSE ) const< / li >
< li class = fn > const TQMetaProperty * < a href = "#property" > < b > property< / b > < / a > ( int index, bool super = FALSE ) const< / li >
< li class = fn > int < a href = "#findProperty" > < b > findProperty< / b > < / a > ( const char * name, bool super = FALSE ) const< / li >
< li class = fn > TQStrList < a href = "#propertyNames" > < b > propertyNames< / b > < / a > ( bool super = FALSE ) const< / li >
< li class = fn > int < a href = "#numProperties" > < b > numProperties< / b > < / a > ( bool super = FALSE ) const< / li >
< / ul >
< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
The TQMetaObject class contains meta information about TQt objects.
< p >
< p > The Meta Object System in TQt is responsible for the signals and
slots inter-object communication mechanism, runtime type
information and the property system. All meta information in TQt is
kept in a single instance of TQMetaObject per class.
< p > This class is not normally required for application programming.
But if you write meta applications, such as scripting engines or
GUI builders, you might find these functions useful:
< ul >
< li > < a href = "#className" > className< / a > () to get the name of a class.
< li > < a href = "#superClassName" > superClassName< / a > () to get the name of the superclass.
< li > < a href = "#inherits" > inherits< / a > (), the function called by < a href = "tqobject.html#inherits" > TQObject::inherits< / a > ().
< li > < a href = "#superClass" > superClass< / a > () to access the superclass's < a href = "metaobjects.html#meta-object" > meta object< / a > .
< li > < a href = "#numSlots" > numSlots< / a > (), < a href = "#numSignals" > numSignals< / a > (), < a href = "#slotNames" > slotNames< / a > (), and < a href = "#signalNames" > signalNames< / a > () to get
information about a class's signals and slots.
< li > < a href = "#property" > property< / a > () and < a href = "#propertyNames" > propertyNames< / a > () to obtain information about a
class's properties.
< / ul >
< p > Classes may have a list of name-value pairs of class information.
The number of pairs is returned by < a href = "#numClassInfo" > numClassInfo< / a > (), and values are
returned by < a href = "#classInfo" > classInfo< / a > ().
< p > < p > See also < a href = "moc.html" > moc (Meta Object Compiler)< / a > and < a href = "objectmodel.html" > Object Model< / a > .
< p >
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > const TQClassInfo * < a name = "classInfo" > < / a > TQMetaObject::classInfo ( int index, bool super = FALSE ) const
< / h3 >
Returns the class information with index < em > index< / em > or 0 if no such
information exists.
< p > If < em > super< / em > is TRUE, inherited class information is included.
< h3 class = fn > const char * < a name = "classInfo-2" > < / a > TQMetaObject::classInfo ( const char * name, bool super = FALSE ) const
< / h3 >
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
< p > Returns the class information with name < em > name< / em > or 0 if no such
information exists.
< p > If < em > super< / em > is TRUE, inherited class information is included.
< h3 class = fn > const char * < a name = "className" > < / a > TQMetaObject::className () const
< / h3 >
< p > Returns the class name.
< p > < p > See also < a href = "tqobject.html#className" > TQObject::className< / a > () and < a href = "#superClassName" > superClassName< / a > ().
< h3 class = fn > int < a name = "findProperty" > < / a > TQMetaObject::findProperty ( const char * name, bool super = FALSE ) const
< / h3 >
Returns the index for the property with name < em > name< / em > or -1 if no
such property exists.
< p > If < em > super< / em > is TRUE, inherited properties are included.
< p > < p > See also < a href = "#property" > property< / a > () and < a href = "#propertyNames" > propertyNames< / a > ().
< h3 class = fn > bool < a name = "inherits" > < / a > TQMetaObject::inherits ( const char * clname ) const
< / h3 >
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.
< p > (A class is considered to inherit itself.)
< h3 class = fn > int < a name = "numClassInfo" > < / a > TQMetaObject::numClassInfo ( bool super = FALSE ) const
< / h3 >
Returns the number of items of class information available for
this class.
< p > If < em > super< / em > is TRUE, inherited class information is included.
< h3 class = fn > int < a name = "numProperties" > < / a > TQMetaObject::numProperties ( bool super = FALSE ) const
< / h3 >
Returns the number of properties for this class.
< p > If < em > super< / em > is TRUE, inherited properties are included.
< p > < p > See also < a href = "#propertyNames" > propertyNames< / a > ().
< h3 class = fn > int < a name = "numSignals" > < / a > TQMetaObject::numSignals ( bool super = FALSE ) const
< / h3 >
Returns the number of signals for this class.
< p > If < em > super< / em > is TRUE, inherited signals are included.
< p > < p > See also < a href = "#signalNames" > signalNames< / a > ().
< h3 class = fn > int < a name = "numSlots" > < / a > TQMetaObject::numSlots ( bool super = FALSE ) const
< / h3 >
Returns the number of slots for this class.
< p > If < em > super< / em > is TRUE, inherited slots are included.
< p > < p > See also < a href = "#slotNames" > slotNames< / a > ().
< h3 class = fn > const < a href = "qmetaproperty.html" > TQMetaProperty< / a > * < a name = "property" > < / a > TQMetaObject::property ( int index, bool super = FALSE ) const
< / h3 >
Returns the property meta data for the property at index < em > index< / em >
or 0 if no such property exists.
< p > If < em > super< / em > is TRUE, inherited properties are included.
< p > < p > See also < a href = "#propertyNames" > propertyNames< / a > ().
< h3 class = fn > < a href = "tqstrlist.html" > TQStrList< / a > < a name = "propertyNames" > < / a > TQMetaObject::propertyNames ( bool super = FALSE ) const
< / h3 >
Returns a list with the names of all this class's properties.
< p > If < em > super< / em > is TRUE, inherited properties are included.
< p > < p > See also < a href = "#property" > property< / a > ().
< h3 class = fn > < a href = "tqstrlist.html" > TQStrList< / a > < a name = "signalNames" > < / a > TQMetaObject::signalNames ( bool super = FALSE ) const
< / h3 >
Returns a list with the names of all this class's signals.
< p > If < em > super< / em > is TRUE, inherited signals are included.
< h3 class = fn > < a href = "tqstrlist.html" > TQStrList< / a > < a name = "slotNames" > < / a > TQMetaObject::slotNames ( bool super = FALSE ) const
< / h3 >
Returns a list with the names of all this class's slots.
< p > If < em > super< / em > is TRUE, inherited slots are included.
< p > < p > See also < a href = "#numSlots" > numSlots< / a > ().
< h3 class = fn > < a href = "ntqmetaobject.html" > TQMetaObject< / a > * < a name = "superClass" > < / a > TQMetaObject::superClass () const
< / h3 >
< p > Returns the < a href = "metaobjects.html#meta-object" > meta object< / a > of the super class or 0 if there is no
such object.
< h3 class = fn > const char * < a name = "superClassName" > < / a > TQMetaObject::superClassName () const
< / h3 >
< p > Returns the class name of the superclass or 0 if there is no
superclass in the < a href = "tqobject.html" > TQObject< / a > hierachy.
< p > < p > See also < a href = "#className" > className< / a > ().
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