You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
185 lines
6.8 KiB
185 lines
6.8 KiB
'\" t
|
|
.TH QMetaObject 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*-
|
|
.\" Copyright 1992-2007 Trolltech ASA. All rights reserved. See the
|
|
.\" license file included in the distribution for a complete license
|
|
.\" statement.
|
|
.\"
|
|
.ad l
|
|
.nh
|
|
.SH NAME
|
|
QMetaObject \- Meta information about Qt objects
|
|
.SH SYNOPSIS
|
|
\fC#include <ntqmetaobject.h>\fR
|
|
.PP
|
|
.SS "Public Members"
|
|
.in +1c
|
|
.ti -1c
|
|
.BI "const char * \fBclassName\fR () const"
|
|
.br
|
|
.ti -1c
|
|
.BI "const char * \fBsuperClassName\fR () const"
|
|
.br
|
|
.ti -1c
|
|
.BI "QMetaObject * \fBsuperClass\fR () const"
|
|
.br
|
|
.ti -1c
|
|
.BI "bool \fBinherits\fR ( const char * clname ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "int \fBnumSlots\fR ( bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "int \fBnumSignals\fR ( bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "QStrList \fBslotNames\fR ( bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "QStrList \fBsignalNames\fR ( bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "int \fBnumClassInfo\fR ( bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "const QClassInfo * \fBclassInfo\fR ( int index, bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "const char * \fBclassInfo\fR ( const char * name, bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "const QMetaProperty * \fBproperty\fR ( int index, bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "int \fBfindProperty\fR ( const char * name, bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "QStrList \fBpropertyNames\fR ( bool super = FALSE ) const"
|
|
.br
|
|
.ti -1c
|
|
.BI "int \fBnumProperties\fR ( bool super = FALSE ) const"
|
|
.br
|
|
.in -1c
|
|
.SH DESCRIPTION
|
|
The QMetaObject class contains meta information about Qt objects.
|
|
.PP
|
|
The Meta Object System in Qt is responsible for the signals and slots inter-object communication mechanism, runtime type information and the property system. All meta information in Qt is kept in a single instance of QMetaObject per class.
|
|
.PP
|
|
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:
|
|
.TP
|
|
className() to get the name of a class.
|
|
.TP
|
|
superClassName() to get the name of the superclass.
|
|
.TP
|
|
inherits(), the function called by QObject::inherits().
|
|
.TP
|
|
superClass() to access the superclass's meta object.
|
|
.TP
|
|
numSlots(), numSignals(), slotNames(), and signalNames() to get information about a class's signals and slots.
|
|
.TP
|
|
property() and propertyNames() to obtain information about a class's properties.
|
|
.PP
|
|
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().
|
|
.PP
|
|
See also moc (Meta Object Compiler) and Object Model.
|
|
.PP
|
|
.SH MEMBER FUNCTION DOCUMENTATION
|
|
.SH "const QClassInfo * QMetaObject::classInfo ( int index, bool super = FALSE ) const"
|
|
Returns the class information with index \fIindex\fR or 0 if no such information exists.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited class information is included.
|
|
.SH "const char * QMetaObject::classInfo ( const char * name, bool super = FALSE ) const"
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
.PP
|
|
Returns the class information with name \fIname\fR or 0 if no such information exists.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited class information is included.
|
|
.SH "const char * QMetaObject::className () const"
|
|
Returns the class name.
|
|
.PP
|
|
See also QObject::className() and superClassName().
|
|
.SH "int QMetaObject::findProperty ( const char * name, bool super = FALSE ) const"
|
|
Returns the index for the property with name \fIname\fR or -1 if no such property exists.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited properties are included.
|
|
.PP
|
|
See also property() and propertyNames().
|
|
.SH "bool QMetaObject::inherits ( const char * clname ) const"
|
|
Returns TRUE if this class inherits \fIclname\fR within the meta object inheritance chain; otherwise returns FALSE.
|
|
.PP
|
|
(A class is considered to inherit itself.)
|
|
.SH "int QMetaObject::numClassInfo ( bool super = FALSE ) const"
|
|
Returns the number of items of class information available for this class.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited class information is included.
|
|
.SH "int QMetaObject::numProperties ( bool super = FALSE ) const"
|
|
Returns the number of properties for this class.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited properties are included.
|
|
.PP
|
|
See also propertyNames().
|
|
.SH "int QMetaObject::numSignals ( bool super = FALSE ) const"
|
|
Returns the number of signals for this class.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited signals are included.
|
|
.PP
|
|
See also signalNames().
|
|
.SH "int QMetaObject::numSlots ( bool super = FALSE ) const"
|
|
Returns the number of slots for this class.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited slots are included.
|
|
.PP
|
|
See also slotNames().
|
|
.SH "const QMetaProperty * QMetaObject::property ( int index, bool super = FALSE ) const"
|
|
Returns the property meta data for the property at index \fIindex\fR or 0 if no such property exists.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited properties are included.
|
|
.PP
|
|
See also propertyNames().
|
|
.SH "QStrList QMetaObject::propertyNames ( bool super = FALSE ) const"
|
|
Returns a list with the names of all this class's properties.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited properties are included.
|
|
.PP
|
|
See also property().
|
|
.SH "QStrList QMetaObject::signalNames ( bool super = FALSE ) const"
|
|
Returns a list with the names of all this class's signals.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited signals are included.
|
|
.SH "QStrList QMetaObject::slotNames ( bool super = FALSE ) const"
|
|
Returns a list with the names of all this class's slots.
|
|
.PP
|
|
If \fIsuper\fR is TRUE, inherited slots are included.
|
|
.PP
|
|
See also numSlots().
|
|
.SH "QMetaObject * QMetaObject::superClass () const"
|
|
Returns the meta object of the super class or 0 if there is no such object.
|
|
.SH "const char * QMetaObject::superClassName () const"
|
|
Returns the class name of the superclass or 0 if there is no superclass in the QObject hierachy.
|
|
.PP
|
|
See also className().
|
|
|
|
.SH "SEE ALSO"
|
|
.BR http://doc.trolltech.com/ntqmetaobject.html
|
|
.BR http://www.trolltech.com/faq/tech.html
|
|
.SH COPYRIGHT
|
|
Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the
|
|
license file included in the distribution for a complete license
|
|
statement.
|
|
.SH AUTHOR
|
|
Generated automatically from the source code.
|
|
.SH BUGS
|
|
If you find a bug in Qt, please report it as described in
|
|
.BR http://doc.trolltech.com/bughowto.html .
|
|
Good bug reports help us to help you. Thank you.
|
|
.P
|
|
The definitive Qt documentation is provided in HTML format; it is
|
|
located at $QTDIR/doc/html and can be read using Qt Assistant or with
|
|
a web browser. This man page is provided as a convenience for those
|
|
users who prefer man pages, although this format is not officially
|
|
supported by Trolltech.
|
|
.P
|
|
If you find errors in this manual page, please report them to
|
|
.BR qt-bugs@trolltech.com .
|
|
Please include the name of the manual page (qmetaobject.3qt) and the Qt
|
|
version (3.3.8).
|