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objects.h Example File
activeqt/hierarchy/objects.h

 /****************************************************************************
 **
 ** Copyright (C) 1992-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
 **
 ** This file is part of the documentation of the Qt Toolkit.
 **
 ** Licensees holding a valid Qt License Agreement may use this file in
 ** accordance with the rights, responsibilities and obligations
 ** contained therein.  Please consult your licensing agreement or
 ** contact [email protected] if any conditions of this licensing
 ** agreement are not clear to you.
 **
 ** Further information about Qt licensing is available at:
 ** http://trolltech.com/products/appdev/licensing.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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 ****************************************************************************/

 #ifndef OBJECTS_H
 #define OBJECTS_H

 #include <QWidget>

 class QVBoxLayout;

 class QSubWidget;

 class QParentWidget : public QWidget
 {
     Q_OBJECT
     Q_CLASSINFO("ClassID", "{d574a747-8016-46db-a07c-b2b4854ee75c}");
     Q_CLASSINFO("InterfaceID", "{4a30719d-d9c2-4659-9d16-67378209f822}");
 public:
     QParentWidget(QWidget *parent = 0);

     QSize sizeHint() const;

 public slots:
     void createSubWidget( const QString &name );

     QSubWidget *subWidget( const QString &name );

 private:
     QVBoxLayout *vbox;
 };

 class QSubWidget : public QWidget
 {
     Q_OBJECT
     Q_PROPERTY( QString label READ label WRITE setLabel )

     Q_CLASSINFO("ClassID", "{850652f4-8f71-4f69-b745-bce241ccdc30}");
     Q_CLASSINFO("InterfaceID", "{2d76cc2f-3488-417a-83d6-debff88b3c3f}");
     Q_CLASSINFO("ToSuperClass", "QSubWidget");

 public:
     QSubWidget(QWidget *parent = 0, const QString &name = QString());

     void setLabel( const QString &text );
     QString label() const;

     QSize sizeHint() const;

 protected:
     void paintEvent( QPaintEvent *e );

 private:
     QString lbl;
 };

 #endif // OBJECTS_H