Wrapper Example (ActiveQt)

Files:

• activeqt/wrapper/main.cpp
• activeqt/wrapper/wrapper.pro

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 a web browser that supports 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://qt.nokia.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://qt.nokia.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://qt.nokia.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://qt.nokia.com/demos/wrapperax.cab">
     <PARAM NAME="text" VALUE="Tune me!" />
 [Object not available! Did you forget to build and register the server?]
 </object><br />