This class is defined in the \fBQt ActiveQt Extension\fR, which can be found in the \fCqt/extensions\fR directory. It is not included in the main TQt API.
A QAxWidget can be instantiated as an empty object, with the name of the ActiveX control it should wrap, or with an existing interface pointer to the ActiveX control. The ActiveX control's properties, methods and events which only use supported data types, become available as TQt properties, slots and signals. The base class QAxBase provides an API to access the ActiveX directly through the IUnknown pointer.
QAxWidget is a TQWidget and can be used as such, e.g. it can be organized in a widget hierarchy, receive events or act as an event filter. Standard widget properties, e.g. enabled are supported, but it depends on the ActiveX control to implement support for ambient properties like e.g. palette or font. QAxWidget tries to provide the necessary hints.
\fBWarning:\fR You can subclass QAxWidget, but you cannot use the TQ_OBJECT macro in the subclass (the generated moc-file will not compile), so you cannot add further signals, slots or properties. This limitation is due to the metaobject information generated in runtime. To work around this problem, aggregate the QAxWidget as a member of the TQObject subclass.
.SH "QAxWidget::QAxWidget ( TQWidget * parent = 0, const char * name = 0, WFlags f = 0 )"
Creates an empty QAxWidget widget and propagates \fIparent\fR, \fIname\fR and \fIf\fR to the TQWidget constructor. To initialize a control, call setControl.
Creates an QAxWidget widget and initializes the ActiveX control \fIc\fR. \fIparent\fR, \fIname\fR and \fIf\fR are propagated to the TQWidget contructor.
Creates a QAxWidget that wraps the COM object referenced by \fIiface\fR. \fIparent\fR, \fIname\fR and \fIf\fR are propagated to the TQWidget contructor.
Creates the client site for the ActiveX control, and returns TRUE if the control could be embedded successfully, otherwise returns FALSE. If \fIinitialized\fR is TRUE the control has already been initialized.
.PP
This function is called by initialize(). If you reimplement initialize to customize the actual control instantiation, call this function in your reimplementation to have the control embedded by the default client side. Creates the client site for the ActiveX control, and returns TRUE if the control could be embedded successfully, otherwise returns FALSE.
Calls the COM object's method \fIfunction\fR, passing the parameters \fIvar1\fR, \fIvar1\fR, \fIvar2\fR, \fIvar3\fR, \fIvar4\fR, \fIvar5\fR, \fIvar6\fR, \fIvar7\fR and \fIvar8\fR, and returns the value returned by the method, or an invalid QVariant if the method does not return a value or when the function call failed.
If \fIfunction\fR is a method of the object the string must be provided as the full prototype, for example as it would be written in a TQObject::connect() call.
All parameters are passed as strings; it depends on the control whether they are interpreted correctly, and is slower than using the prototype with correctly typed parameters.
.PP
If \fIfunction\fR is a property the string has to be the name of the property. The property setter is called when \fIvar1\fR is a valid QVariant, otherwise the getter is called.
It is only possible to call functions through dynamicCall() that have parameters or return values of datatypes supported by QVariant. See the QAxBase class documentation for a list of supported and unsupported datatypes. If you want to call functions that have unsupported datatypes in the parameter list, use queryInterface() to retrieve the appropriate COM interface, and use the function directly.
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
.PP
Calls the COM object's method \fIfunction\fR, passing the parameters in \fIvars\fR, and returns the value returned by the method. If the method does not return a value or when the function call failed this function returns an invalid QVariant object.
.PP
The QVariant objects in \fIvars\fR are updated when the method has out-parameters.
Returns a pointer to a QAxObject wrapping the COM object provided by the method or property \fIname\fR, passing passing the parameters \fIvar1\fR, \fIvar1\fR, \fIvar2\fR, \fIvar3\fR, \fIvar4\fR, \fIvar5\fR, \fIvar6\fR, \fIvar7\fR and \fIvar8\fR.
.PP
If \fIname\fR is provided by a method the string must include the full function prototype.
.PP
If \fIname\fR is a property the string must be the name of the property, and \fIvar1\fR, ... \fIvar8\fR are ignored.
.PP
The returned QAxObject is a child of this object (which is either of type QAxObject or QAxWidget), and is deleted when this object is deleted. It is however safe to delete the returned object yourself, and you should do so when you iterate over lists of subobjects.
.PP
COM enabled applications usually have an object model publishing certain elements of the application as dispatch interfaces. Use this method to navigate the hierarchy of the object model, e.g.
.SH "bool QAxWidget::translateKeyEvent ( int message, int keycode ) const\fC [virtual protected]\fR"
Reimplement this function to pass certain key events to the ActiveX control. \fImessage\fR is the Window message identifier specifying the message type (ie. WM_KEYDOWN), and \fIkeycode\fR is the virtual keycode (ie. VK_TAB).
.PP
If the function returns TRUE the key event is passed on to the ActiveX control, which then either processes the event or passes the event on to Qt.
.PP
If the function returns FALSE the processing of the key event is ignored by ActiveQt, ie. the ActiveX control might handle it or not.
.PP
The default implementation returns TRUE for the following cases:
.PP
<center>.nf
.TS
l - l. WM_SYSKEYDOWN WM_SYSKEYUP WM_KEYDOWN All keycodes VK_MENU
.TE
.fi
</center>
.PP
This table is the result of experimenting with popular ActiveX controls,
ie. Internet Explorer and Microsoft Office applications, but for some
