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main.cpp Example File
^{activeqt/simple/main.cpp}

    /****************************************************************************
    **
    ** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
    **
    ** This file is part of the documentation of the Qt Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License version 2.0 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 GNU
    ** General Public Licensing requirements will be met:
    ** http://www.trolltech.com/products/qt/opensource.html
    **
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://www.trolltech.com/products/qt/licensing.html or contact the
    ** sales department at sales@trolltech.com.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ****************************************************************************/

    #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(const QString&)), this, SLOT(setText(const 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}")