Qt 4.0: Wrapper Example (ActiveQt)

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# Wrapper Example (ActiveQt)

Files:

- activeqt/wrapper/main.cpp

The Wrapper example demonstrates how to export existing QWidget classes as ActiveX controls, and the use of QAxFactory together with the `QAXFACTORY_EXPORT()` macro. ActiveX controls in this example are the standard button classes QPushButton, QCheckBox and QRadioButton as provided by Qt.

        class ActiveQtFactory : public QAxFactory
        {
        public:
            ActiveQtFactory( const QUuid &lib, const QUuid &app )
                : QAxFactory( lib, app )
            {}
            QStringList featureList() const
            {
                QStringList list;
                list << "QCheckBox";
                list << "QRadioButton";
                list << "QPushButton";
                list << "QToolButton";
                return list;
            }
            QObject *createObject(const QString &key)
            {
                if ( key == "QCheckBox" )
                    return new QCheckBox(0);
                if ( key == "QRadioButton" )
                    return new QRadioButton(0);
                if ( key == "QPushButton" )
                    return new QPushButton(0 );
                if ( key == "QToolButton" ) {
                    QToolButton *tb = new QToolButton(0);
        //          tb->setIcon( QPixmap(fileopen) );
                    return tb;
                }

                return 0;
            }
            const QMetaObject *metaObject( const QString &key ) const
            {
                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 == "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 == "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 == "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/activeqt/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 />