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It demonstrates how to export existing QWidget classes as ActiveX controls, and the use of QAxFactory together with the QAXFACTORY_EXPORT macro.
    class ActiveQtFactory : public QAxFactory
    {
    public:
        ActiveQtFactory( const QUuid &lib, const QUuid &app )
            : QAxFactory( lib, app )
        {}
        QStringList featureList() const
        {
            QStringList list;
            list << "QButton";
            list << "QCheckBox";
            list << "QRadioButton";
            list << "QPushButton";
            list << "QToolButton";
            return list;
        }
        QWidget *create( const QString &key, QWidget *parent, const char *name )
        {
            if ( key == "QButton" )
                return new QButton( parent, name );
            if ( key == "QCheckBox" )
                return new QCheckBox( parent, name );
            if ( key == "QRadioButton" )
                return new QRadioButton( parent, name );
            if ( key == "QPushButton" )
                return new QPushButton( parent, name );
            if ( key == "QToolButton" ) {
                QToolButton *tb = new QToolButton( parent, name );
                tb->setPixmap( QPixmap(fileopen) );
                return tb;
            }
            return 0;
        }
        QMetaObject *metaObject( const QString &key ) const
        {
            if ( key == "QButton" )
                return QButton::staticMetaObject();
            if ( key == "QCheckBox" )
                return QCheckBox::staticMetaObject();
            if ( key == "QRadioButton" )
                return QRadioButton::staticMetaObject();
            if ( key == "QPushButton" )
                return QPushButton::staticMetaObject();
            if ( key == "QToolButton" )
                return QToolButton::staticMetaObject();
            return 0;
        }
        QUuid classID( const QString &key ) const
        {
            if ( key == "QButton" )
                return "{23F5012A-7333-43D3-BCA8-836AABC61B4A}";
            if ( key == "QCheckBox" )
                return "{6E795DE9-872D-43CF-A831-496EF9D86C68}";
            if ( key == "QRadioButton" )
                return "{AFCF78C8-446C-409A-93B3-BA2959039189}";
            if ( key == "QPushButton" )
                return "{2B262458-A4B6-468B-B7D4-CF5FEE0A7092}";
            if ( key == "QToolButton" )
                return "{7c0ffe7a-60c3-4666-bde2-5cf2b54390a1}";
            return QUuid();
        }
        QUuid interfaceID( const QString &key ) const
        {
            if ( key == "QButton" )
                return "{6DA689FB-928F-423C-8632-678C3D3606DB}";
            if ( key == "QCheckBox" )
                return "{4FD39DD7-2DE0-43C1-A8C2-27C51A052810}";
            if ( key == "QRadioButton" )
                return "{7CC8AE30-206C-48A3-A009-B0A088026C2F}";
            if ( key == "QPushButton" )
                return "{06831CC9-59B6-436A-9578-6D53E5AD03D3}";
            if ( key == "QToolButton" )
                return "{6726080f-d63d-4950-a366-9bf33e5cdf84}";
            return QUuid();
        }
        QUuid eventsID( const QString &key ) const
        {
            if ( key == "QButton" )
                return "{73A5D03F-8ADE-4D84-9AE0-A93B4F85A130}";
            if ( key == "QCheckBox" )
                return "{FDB6FFBE-56A3-4E90-8F4D-198488418B3A}";
            if ( key == "QRadioButton" )
                return "{73EE4860-684C-4A66-BF63-9B9EFFA0CBE5}";
            if ( key == "QPushButton" )
                return "{3CC3F17F-EA59-4B58-BBD3-842D467131DD}";
            if ( key == "QToolButton" )
                return "{f4d421fd-4ead-4fd9-8a25-440766939639}";
            return QUuid();
        }
    };
The factory implementation returns the list of supported controls,
creates controls on request and provides information about the unique
IDs of the COM classes and interfaces for each control.
    QAXFACTORY_EXPORT( ActiveQtFactory, "{3B756301-0075-4E40-8BE8-5A81DE2426B7}", "{AB068077-4924-406a-BBAF-42D91C8727DD}" )
The factory is exported using the QAXFACTORY_EXPORT macro.
To build the example you must first build the QAxServer library. Then run qmake and your make tool in examples/wrapper.
The demonstration requires your WebBrowser to support ActiveX controls, and scripting to be enabled.
    <SCRIPT LANGUAGE=VBScript>
    Sub ToolButton_Clicked()
        RadioButton.text = InputBox( "Enter something", "Wrapper Demo" )
    End Sub
    Sub PushButton_clicked()
        MsgBox( "Thank you!" )
    End Sub
    Sub CheckBox_toggled( state )
        if state = 0 then
            CheckBox.text = "Check me!"
        else
            CheckBox.text = "Uncheck me!"
        end if
    End Sub
    </SCRIPT>
    <p>
    A QPushButton:<br>
    <object ID="PushButton" CLASSID="CLSID:2B262458-A4B6-468B-B7D4-CF5FEE0A7092"
    CODEBASE=http://www.trolltech.com/demos/wrapperax.cab>
        <PARAM NAME="text" VALUE="Click me!">
    [Object not available! Did you forget to build and register the server?]
    </object><br>
    <p>
    A QCheckBox:<br>
    <object ID="CheckBox" CLASSID="CLSID:6E795de9-872d-43cf-a831-496ef9d86c68"
    CODEBASE=http://www.trolltech.com/demos/wrapperax.cab>
        <PARAM NAME="text" VALUE="Check me!">
    [Object not available! Did you forget to build and register the server?]
    </object><br>
    <p>
    A QToolButton:<br>
    <object ID="ToolButton" CLASSID="CLSID:7c0ffe7a-60c3-4666-bde2-5cf2b54390a1"
    CODEBASE=http://www.trolltech.com/demos/wrapperax.cab>
    [Object not available! Did you forget to build and register the server?]
    </object><br>
    <p>
    A QRadioButton:<br>
    <object ID="RadioButton" CLASSID="CLSID:afcf78c8-446c-409a-93b3-ba2959039189"
    CODEBASE=http://www.trolltech.com/demos/wrapperax.cab>
        <PARAM NAME="text" VALUE="Tune me!">
    [Object not available! Did you forget to build and register the server?]
    </object><br>
See also The QAxServer Examples.
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