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185 lines
6.8 KiB
185 lines
6.8 KiB
'\" t
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.TH QMetaObject 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*-
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.\" Copyright 1992-2007 Trolltech ASA. All rights reserved. See the
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.\" license file included in the distribution for a complete license
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.\" statement.
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.\"
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.ad l
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.nh
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.SH NAME
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QMetaObject \- Meta information about TQt objects
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.SH SYNOPSIS
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\fC#include <ntqmetaobject.h>\fR
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.PP
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.SS "Public Members"
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.in +1c
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.ti -1c
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.BI "const char * \fBclassName\fR () const"
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.br
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.ti -1c
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.BI "const char * \fBsuperClassName\fR () const"
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.br
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.ti -1c
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.BI "QMetaObject * \fBsuperClass\fR () const"
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.br
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.ti -1c
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.BI "bool \fBinherits\fR ( const char * clname ) const"
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.br
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.ti -1c
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.BI "int \fBnumSlots\fR ( bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "int \fBnumSignals\fR ( bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "QStrList \fBslotNames\fR ( bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "QStrList \fBsignalNames\fR ( bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "int \fBnumClassInfo\fR ( bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "const QClassInfo * \fBclassInfo\fR ( int index, bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "const char * \fBclassInfo\fR ( const char * name, bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "const QMetaProperty * \fBproperty\fR ( int index, bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "int \fBfindProperty\fR ( const char * name, bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "QStrList \fBpropertyNames\fR ( bool super = FALSE ) const"
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.br
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.ti -1c
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.BI "int \fBnumProperties\fR ( bool super = FALSE ) const"
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.br
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.in -1c
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.SH DESCRIPTION
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The QMetaObject class contains meta information about TQt objects.
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.PP
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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 QMetaObject per class.
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.PP
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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:
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.TP
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className() to get the name of a class.
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.TP
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superClassName() to get the name of the superclass.
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.TP
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inherits(), the function called by QObject::inherits().
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.TP
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superClass() to access the superclass's meta object.
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.TP
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numSlots(), numSignals(), slotNames(), and signalNames() to get information about a class's signals and slots.
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.TP
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property() and propertyNames() to obtain information about a class's properties.
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.PP
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Classes may have a list of name-value pairs of class information. The number of pairs is returned by numClassInfo(), and values are returned by classInfo().
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.PP
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See also moc (Meta Object Compiler) and Object Model.
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.PP
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.SH MEMBER FUNCTION DOCUMENTATION
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.SH "const QClassInfo * QMetaObject::classInfo ( int index, bool super = FALSE ) const"
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Returns the class information with index \fIindex\fR or 0 if no such information exists.
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.PP
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If \fIsuper\fR is TRUE, inherited class information is included.
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.SH "const char * QMetaObject::classInfo ( const char * name, bool super = FALSE ) const"
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This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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.PP
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Returns the class information with name \fIname\fR or 0 if no such information exists.
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.PP
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If \fIsuper\fR is TRUE, inherited class information is included.
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.SH "const char * QMetaObject::className () const"
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Returns the class name.
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.PP
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See also QObject::className() and superClassName().
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.SH "int QMetaObject::findProperty ( const char * name, bool super = FALSE ) const"
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Returns the index for the property with name \fIname\fR or -1 if no such property exists.
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.PP
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If \fIsuper\fR is TRUE, inherited properties are included.
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.PP
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See also property() and propertyNames().
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.SH "bool QMetaObject::inherits ( const char * clname ) const"
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Returns TRUE if this class inherits \fIclname\fR within the meta object inheritance chain; otherwise returns FALSE.
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.PP
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(A class is considered to inherit itself.)
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.SH "int QMetaObject::numClassInfo ( bool super = FALSE ) const"
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Returns the number of items of class information available for this class.
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.PP
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If \fIsuper\fR is TRUE, inherited class information is included.
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.SH "int QMetaObject::numProperties ( bool super = FALSE ) const"
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Returns the number of properties for this class.
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.PP
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If \fIsuper\fR is TRUE, inherited properties are included.
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.PP
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See also propertyNames().
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.SH "int QMetaObject::numSignals ( bool super = FALSE ) const"
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Returns the number of signals for this class.
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.PP
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If \fIsuper\fR is TRUE, inherited signals are included.
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.PP
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See also signalNames().
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.SH "int QMetaObject::numSlots ( bool super = FALSE ) const"
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Returns the number of slots for this class.
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.PP
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If \fIsuper\fR is TRUE, inherited slots are included.
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.PP
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See also slotNames().
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.SH "const QMetaProperty * QMetaObject::property ( int index, bool super = FALSE ) const"
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Returns the property meta data for the property at index \fIindex\fR or 0 if no such property exists.
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.PP
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If \fIsuper\fR is TRUE, inherited properties are included.
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.PP
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See also propertyNames().
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.SH "QStrList QMetaObject::propertyNames ( bool super = FALSE ) const"
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Returns a list with the names of all this class's properties.
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.PP
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If \fIsuper\fR is TRUE, inherited properties are included.
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.PP
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See also property().
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.SH "QStrList QMetaObject::signalNames ( bool super = FALSE ) const"
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Returns a list with the names of all this class's signals.
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.PP
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If \fIsuper\fR is TRUE, inherited signals are included.
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.SH "QStrList QMetaObject::slotNames ( bool super = FALSE ) const"
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Returns a list with the names of all this class's slots.
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.PP
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If \fIsuper\fR is TRUE, inherited slots are included.
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.PP
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See also numSlots().
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.SH "QMetaObject * QMetaObject::superClass () const"
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Returns the meta object of the super class or 0 if there is no such object.
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.SH "const char * QMetaObject::superClassName () const"
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Returns the class name of the superclass or 0 if there is no superclass in the QObject hierachy.
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.PP
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See also className().
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.SH "SEE ALSO"
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.BR http://doc.trolltech.com/ntqmetaobject.html
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.BR http://www.trolltech.com/faq/tech.html
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.SH COPYRIGHT
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Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the
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license file included in the distribution for a complete license
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statement.
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.SH AUTHOR
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Generated automatically from the source code.
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.SH BUGS
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If you find a bug in Qt, please report it as described in
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.BR http://doc.trolltech.com/bughowto.html .
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Good bug reports help us to help you. Thank you.
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.P
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The definitive TQt documentation is provided in HTML format; it is
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located at $QTDIR/doc/html and can be read using TQt Assistant or with
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a web browser. This man page is provided as a convenience for those
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users who prefer man pages, although this format is not officially
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supported by Trolltech.
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.P
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If you find errors in this manual page, please report them to
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.BR qt-bugs@trolltech.com .
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Please include the name of the manual page (tqmetaobject.3qt) and the Qt
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version (3.3.8).
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