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# main.cpp Example File
activeqt/simple/main.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
     ** All rights reserved.
     ** Contact: Nokia Corporation (qt-info@nokia.com)
     **
     ** This file is part of the examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
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     ** Licensees holding valid Qt Commercial licenses may use this file in
     ** accordance with the Qt Commercial License Agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
     ** a written agreement between you and Nokia.
     **
     ** GNU Lesser General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU Lesser
     ** General Public License version 2.1 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.LGPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU Lesser General Public License version 2.1 requirements
     ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
     **
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     ** rights.  These rights are described in the Nokia Qt LGPL Exception
     ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
     **
     ** GNU General Public License Usage
     ** Alternatively, this file may be used under the terms of the GNU
     ** General Public License version 3.0 as published by the Free Software
     ** Foundation and appearing in the file LICENSE.GPL included in the
     ** packaging of this file.  Please review the following information to
     ** ensure the GNU General Public License version 3.0 requirements will be
     ** met: http://www.gnu.org/copyleft/gpl.html.
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     #include <QAxBindable>
     #include <QAxFactory>
     #include <QApplication>
     #include <QLayout>
     #include <QSlider>
     #include <QLCDNumber>
     #include <QLineEdit>
     #include <QMessageBox>

     class QSimpleAX : public QWidget, public QAxBindable
     {
         Q_OBJECT
         Q_PROPERTY( QString text READ text WRITE setText )
         Q_PROPERTY( int value READ value WRITE setValue )
     public:
         QSimpleAX(QWidget *parent = 0)
         : QWidget(parent)
         {
             QVBoxLayout *vbox = new QVBoxLayout( this );

             slider = new QSlider( Qt::Horizontal, this );
             LCD = new QLCDNumber( 3, this );
             edit = new QLineEdit( this );

             connect( slider, SIGNAL(valueChanged(int)), this, SLOT(setValue(int)) );
             connect( edit, SIGNAL(textChanged(QString)), this, SLOT(setText(QString)) );

             vbox->addWidget( slider );
             vbox->addWidget( LCD );
             vbox->addWidget( edit );
         }

         QString text() const
         {
             return edit->text();
         }
         int value() const
         {
             return slider->value();
         }

     signals:
         void someSignal();
         void valueChanged(int);
         void textChanged(const QString&);

     public slots:
         void setText( const QString &string )
         {
             if ( !requestPropertyChange( "text" ) )
                 return;

             edit->blockSignals( true );
             edit->setText( string );
             edit->blockSignals( false );
             emit someSignal();
             emit textChanged( string );

             propertyChanged( "text" );
         }
         void about()
         {
             QMessageBox::information( this, "About QSimpleAX", "This is a Qt widget, and this slot has been\n"
                                                               "called through ActiveX/OLE automation!" );
         }
         void setValue( int i )
         {
             if ( !requestPropertyChange( "value" ) )
                 return;
             slider->blockSignals( true );
             slider->setValue( i );
             slider->blockSignals( false );
             LCD->display( i );
             emit valueChanged( i );

             propertyChanged( "value" );
         }

     private:
         QSlider *slider;
         QLCDNumber *LCD;
         QLineEdit *edit;
     };

     #include "main.moc"

     QAXFACTORY_DEFAULT(QSimpleAX,
                "{DF16845C-92CD-4AAB-A982-EB9840E74669}",
                "{616F620B-91C5-4410-A74E-6B81C76FFFE0}",
                "{E1816BBA-BF5D-4A31-9855-D6BA432055FF}",
                "{EC08F8FC-2754-47AB-8EFE-56A54057F34E}",
                "{A095BA0C-224F-4933-A458-2DD7F6B85D8F}")