From bd0f3345a938b35ce6a12f6150373b0955b8dd12 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sun, 10 Jul 2011 15:24:15 -0500 Subject: Add Qt3 development HEAD version --- doc/html/qaxserver-example-simple.html | 182 +++++++++++++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 doc/html/qaxserver-example-simple.html (limited to 'doc/html/qaxserver-example-simple.html') diff --git a/doc/html/qaxserver-example-simple.html b/doc/html/qaxserver-example-simple.html new file mode 100644 index 0000000..20bba81 --- /dev/null +++ b/doc/html/qaxserver-example-simple.html @@ -0,0 +1,182 @@ + + + + + +A simple ActiveQt control (executable) + + + + + + + +

A simple ActiveQt control (executable)

+ + + +The ActiveX control in this example is a layouted QWidget +with a QSlider, a QLCDNumber and a QLineEdit. +It provides a signal/slot/property interface to change the +values of the slider and the line edit, and to get notified +of any property changes. +

It demonstrates the use of QAxBindable::requestPropertyChange() +and QAxBindable::propertyChanged(), and the use of the default +QAxFactory through the QAXFACTORY_DEFAULT macro. +

+ +

The Qt implementation of the ActiveX for this example is +

    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, const char *name = 0 )
+        : QWidget( parent, name )
+        {
+            QVBoxLayout *vbox = new QVBoxLayout( this );
+
+            slider = new QSlider( 0, 100, 1, 0, QSlider::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;
+    };
+

The control is exported using the default QAxFactory +

    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}")
+

To build the example you must first build the QAxServer library. Then run qmake and your make tool in +examples/simple. +

The demonstration requires your +WebBrowser to support ActiveX controls, and scripting to be enabled. +

The simple ActiveX control is embedded using the <object> tag. + + +

    <object ID="QSimpleAX" CLASSID="CLSID:DF16845C-92CD-4AAB-A982-EB9840E74669"
+    CODEBASE=http://www.trolltech.com/demos/simpleax.cab>
+        <PARAM NAME="text" VALUE="A simple control">
+        <PARAM NAME="value" VALUE="1">
+    [Object not available! Did you forget to build and register the server?]
+    </object>
+

A simple HTML button is connected to the ActiveQt's about() slot. +

    <FORM>
+        <INPUT TYPE="BUTTON" VALUE="About..." onClick="QSimpleAX.about()">
+    </FORM>
+

A second ActiveX control - the standard Calendar Control - is instantiated +

    <object ID="Calendar" CLASSID="CLSID:8E27C92B-1264-101C-8A2F-040224009C02">
+    [Standard Calendar control not available!]
+        <PARAM NAME="day" VALUE="1">
+    </object>
+

Events from the ActiveX controls are handled using both Visual Basic Script +and JavaScript. +

    <SCRIPT LANGUAGE=VBScript>
+    Sub Calendar_Click()
+        MsgBox( "Calendar Clicked!" )
+    End Sub
+
+    Sub QSimpleAX_TextChanged( str )
+        document.title = str
+    End Sub
+    </SCRIPT>
+    <SCRIPT LANGUAGE=JavaScript>
+    function QSimpleAX::ValueChanged( Newvalue )
+    {
+        Calendar.Day = Newvalue;
+    }
+    </SCRIPT>
+