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

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     **
     ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
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     ** License version 2.0 as published by the Free Software Foundation
     ** and appearing in the file LICENSE.GPL included in the packaging of
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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(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}")