summaryrefslogtreecommitdiffstats
path: root/doc/man/man3/qaxbase.3qt
blob: 7c17b2610f7733e30f6dac8f00073ac6039471a1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
'\" t
.TH QAxBase 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*-
.\" Copyright 1992-2007 Trolltech ASA.  All rights reserved.  See the
.\" license file included in the distribution for a complete license
.\" statement.
.\"
.ad l
.nh
.SH NAME
QAxBase \- Abstract class that provides an API to initalize and access a COM object
.SH SYNOPSIS
This class is part of the \fBQt ActiveQt Extension\fR.
.PP
\fC#include <qaxbase.h>\fR
.PP
Inherited by QAxObject and QAxWidget.
.PP
.SS "Public Members"
.in +1c
.ti -1c
.BI "\fBQAxBase\fR ( IUnknown * iface = 0 )"
.br
.ti -1c
.BI "virtual \fB~QAxBase\fR ()"
.br
.ti -1c
.BI "QString \fBcontrol\fR () const"
.br
.ti -1c
.BI "long \fBqueryInterface\fR ( const QUuid & uuid, void ** iface ) const"
.br
.ti -1c
.BI "QVariant \fBdynamicCall\fR ( const QCString & function, const QVariant & var1 = QVariant ( ), const QVariant & var2 = QVariant ( ), const QVariant & var3 = QVariant ( ), const QVariant & var4 = QVariant ( ), const QVariant & var5 = QVariant ( ), const QVariant & var6 = QVariant ( ), const QVariant & var7 = QVariant ( ), const QVariant & var8 = QVariant ( ) )"
.br
.ti -1c
.BI "QVariant \fBdynamicCall\fR ( const QCString & function, QValueList<QVariant> & vars )"
.br
.ti -1c
.BI "QAxObject * \fBquerySubObject\fR ( const QCString & name, const QVariant & var1 = QVariant ( ), const QVariant & var2 = QVariant ( ), const QVariant & var3 = QVariant ( ), const QVariant & var4 = QVariant ( ), const QVariant & var5 = QVariant ( ), const QVariant & var6 = QVariant ( ), const QVariant & var7 = QVariant ( ), const QVariant & var8 = QVariant ( ) )"
.br
.ti -1c
.BI "PropertyBag \fBpropertyBag\fR () const"
.br
.ti -1c
.BI "void \fBsetPropertyBag\fR ( const PropertyBag & bag )"
.br
.ti -1c
.BI "QString \fBgenerateDocumentation\fR ()"
.br
.ti -1c
.BI "virtual bool \fBpropertyWritable\fR ( const char * prop ) const"
.br
.ti -1c
.BI "virtual void \fBsetPropertyWritable\fR ( const char * prop, bool ok )"
.br
.ti -1c
.BI "bool \fBisNull\fR () const"
.br
.ti -1c
.BI "QVariant \fBasVariant\fR () const"
.br
.ti -1c
.BI "enum \fBPropertyBag\fR { }"
.br
.ti -1c
.BI "virtual void \fBclear\fR ()"
.br
.ti -1c
.BI "bool \fBsetControl\fR ( const QString & )"
.br
.ti -1c
.BI "void \fBdisableMetaObject\fR ()"
.br
.ti -1c
.BI "void \fBdisableClassInfo\fR ()"
.br
.ti -1c
.BI "void \fBdisableEventSink\fR ()"
.br
.in -1c
.SS "Signals"
.in +1c
.ti -1c
.BI "void \fBsignal\fR ( const QString & name, int argc, void * argv )"
.br
.ti -1c
.BI "void \fBpropertyChanged\fR ( const QString & name )"
.br
.ti -1c
.BI "void \fBexception\fR ( int code, const QString & source, const QString & desc, const QString & help )"
.br
.in -1c
.SS "Properties"
.in +1c
.ti -1c
.BI "QString \fBcontrol\fR - the name of the COM object wrapped by this QAxBase object"
.br
.in -1c
.SS "Protected Members"
.in +1c
.ti -1c
.BI "virtual bool \fBinitialize\fR ( IUnknown ** ptr )"
.br
.ti -1c
.BI "bool \fBinitializeRemote\fR ( IUnknown ** ptr )"
.br
.ti -1c
.BI "bool \fBinitializeLicensed\fR ( IUnknown ** ptr )"
.br
.ti -1c
.BI "bool \fBinitializeActive\fR ( IUnknown ** ptr )"
.br
.in -1c
.SH DESCRIPTION
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 Qt API.
.PP
The QAxBase class is an abstract class that provides an API to initalize and access a COM object.
.PP
QAxBase is an abstract class that cannot be used directly, and is instantiated through the subclasses QAxObject and QAxWidget. This class provides the API to access the COM object directly through its IUnknown implementation. If the COM object implements the IDispatch interface, the properties and methods of that object become available as Qt properties and slots.
.PP
.nf
.br
    connect( buttonBack, SIGNAL(clicked()), webBrowser, SLOT(GoBack()) );
.br
.fi
.PP
Properties exposed by the object's IDispatch implementation can be read and written through the property system provided by the Qt Object Model (both subclasses are QObjects, so you can use setProperty() and property() as with QObject). Properties with multiple parameters are not supported.
.PP
.nf
.br
    activeX->setProperty( "text", "some text" );
.br
    int value = activeX->property( "value" );
.br
.fi
.PP
Write-functions for properties and other methods exposed by the object's IDispatch implementation can be called directly using dynamicCall(), or indirectly as slots connected to a signal.
.PP
.nf
.br
    webBrowser->dynamicCall( "GoHome()" );
.br
.fi
.PP
Outgoing events supported by the COM object are emitted as standard Qt signals.
.PP
.nf
.br
    connect( webBrowser, SIGNAL(TitleChanged(const QString&)),
.br
             this, SLOT(setCaption(const QString&)) );
.br
.fi
.PP
QAxBase transparently converts between COM data types and the equivalent Qt data types. Some COM types have no equivalent Qt data structure.
.PP
Supported COM datatypes are listed in the first column of following table. The second column is the Qt type that can be used with the QObject property functions. The third column is the Qt type that is used in the prototype of generated signals and slots for in-parameters, and the last column is the Qt type that is used in the prototype of signals and slots for out-parameters. <center>.nf
.TS
l - l. COM type Qt property in-parameter out-parameter VARIANT_BOOL bool bool bool& BSTR QString const QString& QString& char, short, int, long int int int& uchar, ushort, uint, ulong uint uint uint& float, double double double double& DATE QDateTime const QDateTime& QDateTime& CY Q_LLONG Q_LLONG Q_LLONG& OLE_COLOR QColor const QColor& QColor& SAFEARRAY(VARIANT) QValueList<QVariant> const QValueList<QVariant>& QValueList<QVariant>& SAFEARRAY(BYTE) QByteArray const QByteArray& QByteArray& SAFEARRAY(BSTR) QStringList const QStringList& QStringList& VARIANT type-dependent const QVariant& QVariant& IFontDisp* QFont const QFont& QFont& IPictureDisp* QPixmap const QPixmap& QPixmap& IDispatch* QAxObject* (read-only) QAxBase::asVariant() QAxObject* (return value) IUnknown* QAxObject* (read-only) QAxBase::asVariant() QAxObject* (return value) SCODE, DECIMAL \fIunsupported\fR \fIunsupported\fR
.TE
.fi
</center>
.PP
Supported are also enumerations, and typedefs to supported types.
.PP
To call the methods of a COM interface described by the following IDL
.PP
.nf
.br
    dispinterface IControl
.br
    {
.br
    properties:
.br
        [id(1)] BSTR text;
.br
        [id(2)] IFontDisp *font;
.br
.br
    methods:
.br
        [id(6)] void showColumn( [in] int i );
.br
        [id(3)] bool addColumn( [in] BSTR t );
.br
        [id(4)] int fillList( [in, out] SAFEARRAY(VARIANT) *list );
.br
        [id(5)] IDispatch *item( [in] int i );
.br
    };
.br
.fi
use the QAxBase API like this:
.PP
.nf
.br
    QAxObject object( "<CLSID>" );
.br
.br
    QString text = object.property( "text" ).toString();
.br
    object.setProperty( "font", QFont( "Times New Roman", 12 ) );
.br
.br
    connect( this, SIGNAL(clicked(int)), &object, SLOT(showColumn(int)) );
.br
    bool ok = object.dynamicCall( "addColumn(const QString&)", "Column 1" ).toBool();
.br
.br
    QValueList<QVariant> varlist;
.br
    QValueList<QVariant> parameters;
.br
    parameters << QVariant( varlist );
.br
    int n = object.dynamicCall( "fillList(QValueList<QVariant>&)", parameters ).toInt();
.br
.br
    QAxObject *item = object.querySubItem( "item(int)", 5 );
.br
.fi
.PP
Note that the QValueList the object should fill has to be provided as an element in the parameter list of QVariants.
.PP
If you need to access properties or pass parameters of unsupported datatypes you must access the COM object directly through its IDispatch implementation or other interfaces. Those interfaces can be retrieved through queryInterface().
.PP
.nf
.br
    IUnknown *iface = 0;
.br
    activeX->queryInterface( IID_IUnknown, (void**)&iface );
.br
    if ( iface ) {
.br
        // use the interface
.br
        iface->Release();
.br
    }
.br
.fi
.PP
To get the definition of the COM interfaces you will have to use the header files provided with the component you want to use. Some compilers can also import type libraries using the #import compiler directive. See the component documentation to find out which type libraries you have to import, and how to use them.
.PP
If you need to react to events that pass parameters of unsupported datatypes you can use the generic signal that delivers the event data as provided by the COM event.
.SS "Member Type Documentation"
.SH "QAxBase::PropertyBag"
A QMap<QString,QVariant> that can store properties as name:value pairs.
.SH MEMBER FUNCTION DOCUMENTATION
.SH "QAxBase::QAxBase ( IUnknown * iface = 0 )"
Creates a QAxBase object that wraps the COM object \fIiface\fR. If \fIiface\fR is 0 (the default), use setControl() to instantiate a COM object.
.SH "QAxBase::~QAxBase ()\fC [virtual]\fR"
Shuts down the COM object and destroys the QAxBase object.
.PP
See also clear().
.SH "QVariant QAxBase::asVariant () const"
Returns a QVariant that wraps the COM object. The variant can then be used as a parameter in e.g. dynamicCall().
.SH "void QAxBase::clear ()\fC [virtual]\fR"
Disconnects and destroys the COM object.
.PP
If you reimplement this function you must also reimplement the destructor to call clear(), and call this implementation at the end of your clear() function.
.SH "QString QAxBase::control () const"
Returns the name of the COM object wrapped by this QAxBase object. See the "control" property for details.
.SH "void QAxBase::disableClassInfo ()"
Disables the class info generation for this ActiveX container. If you don't retquire any class information about the ActiveX control use this function to speed up the meta object generation.
.PP
Note that this function must be called immediately after construction of the object (without passing an object identifier), and before calling QAxWidget->setControl().
.SH "void QAxBase::disableEventSink ()"
Disables the event sink implementation for this ActiveX container. If you don't intend to listen to the ActiveX control's events use this function to speed up the meta object generation.
.PP
Some ActiveX controls might be unstable when connected to an event sink. To get OLE events you must use standard COM methods to register your own event sink. Use queryInterface() to get access to the raw COM object.
.PP
Note that this function should be called immediately after construction of the object (without passing an object identifier), and before calling QAxWidget->setControl().
.SH "void QAxBase::disableMetaObject ()"
Disables the meta object generation for this ActiveX container. This also disables the event sink and class info generation. If you don't intend to use the Qt meta object implementation call this function to speed up the meta object generation.
.PP
Some ActiveX controls might be unstable when used with OLE automation. Use standard COM methods to use those controls through the COM interfaces provided by queryInterface().
.PP
Note that this function must be called immediately after construction of the object (without passing an object identifier), and before calling QAxWidget->setControl().
.SH "QVariant QAxBase::dynamicCall ( const QCString & function, const QVariant & var1 = QVariant ( ), const QVariant & var2 = QVariant ( ), const QVariant & var3 = QVariant ( ), const QVariant & var4 = QVariant ( ), const QVariant & var5 = QVariant ( ), const QVariant & var6 = QVariant ( ), const QVariant & var7 = QVariant ( ), const QVariant & var8 = QVariant ( ) )"
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.
.PP
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 QObject::connect() call.
.PP
.nf
.br
    activeX->dynamicCall( "Navigate(const QString&)", "www.trolltech.com" );
.br
.fi
.PP
Alternatively a function can be called passing the parameters embedded in the string, e.g. above function can also be invoked using
.PP
.nf
.br
    activeX->dynamicCall("Navigate(\\"www.trolltech.com\\");
.br
.fi
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.
.PP
.nf
.br
    activeX->dynamicCall( "Value", 5 );
.br
    QString text = activeX->dynamicCall( "Text" ).toString();
.br
.fi
Note that it is faster to get and set properties using QObject::property() and QObject::setProperty().
.PP
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.
.PP
.nf
.br
    IWebBrowser2 *webBrowser = 0;
.br
    activeX->queryInterface( IID_IWebBrowser2, (void**)&webBrowser );
.br
    if ( webBrowser ) {
.br
        webBrowser->Navigate2( pvarURL );
.br
        webBrowser->Release();
.br
    }
.br
.fi
.PP
This is also more efficient.
.PP
Example: qutlook/centralwidget.cpp.
.SH "QVariant QAxBase::dynamicCall ( const QCString & function, QValueList<QVariant> & vars )"
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.
.SH "void QAxBase::exception ( int code, const QString & source, const QString & desc, const QString & help )\fC [signal]\fR"
This signal is emitted when the COM object throws an exception while called using the OLE automation interface IDispatch. \fIcode\fR, \fIsource\fR, \fIdesc\fR and \fIhelp\fR provide information about the exception as provided by the COM server and can be used to provide useful feedback to the end user. \fIhelp\fR includes the help file, and the help context ID in brackets, e.g. "filename [id]".
.SH "QString QAxBase::generateDocumentation ()"
Returns a rich text string with documentation for the wrapped COM object. Dump the string to an HTML-file, or use it in e.g. a QTextBrowser widget.
.SH "bool QAxBase::initialize ( IUnknown ** ptr )\fC [virtual protected]\fR"
This virtual function is called by setControl() and creates the requested COM object. \fIptr\fR is set to the object's IUnknown implementation. The function returns TRUE if the object initialization succeeded; otherwise the function returns FALSE.
.PP
The default implementation interprets the string returned by control(), and calls initializeRemote(), initializeLicensed() or initializeActive() if the string matches the respective patterns. If no pattern is matched, or if remote or licensed initialization fails, CoCreateInstance is used directly to create the object.
.PP
See the control property documentation for details about supported patterns.
.PP
The interface returned in \fIptr\fR must be referenced exactly once when this function returns. The interface provided by e.g. CoCreateInstance is already referenced, and there is no need to reference it again.
.SH "bool QAxBase::initializeActive ( IUnknown ** ptr )\fC [protected]\fR"
Returns an active instance running on the current machine, and returns the IUnknown interface to the running object in \fIptr\fR. This function returns TRUE if successful, otherwise returns FALSE.
.PP
This function is called by initialize() if the control string contains the substring "}&".
.PP
See also initialize().
.SH "bool QAxBase::initializeLicensed ( IUnknown ** ptr )\fC [protected]\fR"
Creates an instance of a licensed control, and returns the IUnknown interface to the object in \fIptr\fR. This functions returns TRUE if successful, otherwise returns FALSE.
.PP
This function is called by initialize() if the control string contains the substring "}:". The license key needs to follow this substring.
.PP
See also initialize().
.SH "bool QAxBase::initializeRemote ( IUnknown ** ptr )\fC [protected]\fR"
Creates the instance on a remote server, and returns the IUnknown interface to the object in \fIptr\fR. This function returns TRUE if successful, otherwise returns FALSE.
.PP
This function is called by initialize() if the control string contains the substring "/{". The information about the remote machine needs to be provided in front of the substring.
.PP
See also initialize().
.SH "bool QAxBase::isNull () const"
Returns TRUE if there is no COM object loaded by this wrapper; otherwise return FALSE.
.PP
See also control.
.SH "PropertyBag QAxBase::propertyBag () const"
Returns a name:value map of all the properties exposed by the COM object.
.PP
This is more efficient than getting multiple properties individually if the COM object supports property bags.
.PP
\fBWarning:\fR It is not guaranteed that the property bag implementation of the COM object returns all properties, or that the properties returned are the same as those available through the IDispatch interface.
.SH "void QAxBase::propertyChanged ( const QString & name )\fC [signal]\fR"
If the COM object supports property notification, this signal gets emitted when the property called \fIname\fR is changed.
.SH "bool QAxBase::propertyWritable ( const char * prop ) const\fC [virtual]\fR"
Returns TRUE if the property \fIprop\fR is writable; otherwise returns FALSE. By default, all properties are writable.
.PP
\fBWarning:\fR Depending on the control implementation this setting might be ignored for some properties.
.PP
See also setPropertyWritable() and propertyChanged().
.SH "long QAxBase::queryInterface ( const QUuid & uuid, void ** iface ) const"
Requests the interface \fIuuid\fR from the COM object and sets the value of \fIiface\fR to the provided interface, or to 0 if the requested interface could not be provided.
.PP
Returns the result of the QueryInterface implementation of the COM object.
.PP
See also control.
.SH "QAxObject * QAxBase::querySubObject ( const QCString & name, const QVariant & var1 = QVariant ( ), const QVariant & var2 = QVariant ( ), const QVariant & var3 = QVariant ( ), const QVariant & var4 = QVariant ( ), const QVariant & var5 = QVariant ( ), const QVariant & var6 = QVariant ( ), const QVariant & var7 = QVariant ( ), const QVariant & var8 = QVariant ( ) )"
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.
.PP
.nf
.br
    QAxWidget outlook( "Outlook.Application" );
.br
    QAxObject *session = outlook.querySubObject( "Session" );
.br
    if ( session ) {
.br
        QAxObject *defFolder = session->querySubObject(
.br
                                "GetDefaultFolder(OlDefaultFolders)",
.br
                                "olFolderContacts" );
.br
        //...
.br
    }
.br
.fi
.PP
Example: qutlook/centralwidget.cpp.
.SH "bool QAxBase::setControl ( const QString & )"
Sets the name of the COM object wrapped by this QAxBase object. See the "control" property for details.
.SH "void QAxBase::setPropertyBag ( const PropertyBag & bag )"
Sets the properties of the COM object to the corresponding values in \fIbag\fR.
.PP
\fBWarning:\fR You should only set property bags that have been returned by the propertyBag function, as it cannot be guaranteed that the property bag implementation of the COM object supports the same properties that are available through the IDispatch interface.
.PP
See also propertyBag().
.SH "void QAxBase::setPropertyWritable ( const char * prop, bool ok )\fC [virtual]\fR"
Sets the property \fIprop\fR to writable if \fIok\fR is TRUE, otherwise sets \fIprop\fR to be read-only. By default, all properties are writable.
.PP
\fBWarning:\fR Depending on the control implementation this setting might be ignored for some properties.
.PP
See also propertyWritable() and propertyChanged().
.SH "void QAxBase::signal ( const QString & name, int argc, void * argv )\fC [signal]\fR"
This generic signal gets emitted when the COM object issues the event \fIname\fR. \fIargc\fR is the number of parameters provided by the event (DISPPARAMS.cArgs), and \fIargv\fR is the pointer to the parameter values (DISPPARAMS.rgvarg). Note that the order of parameter values is turned around, ie. the last element of the array is the first parameter in the function.
.PP
.nf
.br
    void Receiver::slot( const QString &name, int argc, void *argv )
.br
    {
.br
        VARIANTARG *params = (VARIANTARG*)argv;
.br
        if ( name.startsWith( "BeforeNavigate2(" ) ) {
.br
            IDispatch *pDisp = params[argc-1].pdispVal;
.br
            VARIANTARG URL = *params[argc-2].pvarVal;
.br
            VARIANTARG Flags = *params[argc-3].pvarVal;
.br
            VARIANTARG TargetFrameName = *params[argc-4].pvarVal;
.br
            VARIANTARG PostData = *params[argc-5].pvarVal;
.br
            VARIANTARG Headers = *params[argc-6].pvarVal;
.br
            bool *Cancel = params[argc-7].pboolVal;
.br
        }
.br
    }
.br
.fi
.PP
Use this signal if the event has parameters of unsupported data types. Otherwise, connect directly to the signal \fIname\fR.
.SS "Property Documentation"
.SH "QString control"
This property holds the name of the COM object wrapped by this QAxBase object.
.PP
Setting this property initilializes the COM object. Any COM object previously set is shut down.
.PP
The most efficient way to set this property is by using the registered component's UUID, e.g.
.PP
.nf
.br
    ctrl->setControl( "{8E27C92B-1264-101C-8A2F-040224009C02}" );
.br
.fi
The second fastest way is to use the registered control's class name (with or without version number), e.g.
.PP
.nf
.br
    ctrl->setControl( "MSCal.Calendar" );
.br
.fi
The slowest, but easiest way to use is to use the control's full name, e.g.
.PP
.nf
.br
    ctrl->setControl( "Calendar Control 9.0" );
.br
.fi
.PP
If the component's UUID is used the following patterns can be used to initialize the control on a remote machine, to initialize a licensed control or to connect to a running object:
.TP
To initialize the control on a different machine use the following pattern:
.IP
.nf
.br
    <domain/username>:<password>@server/{8E27C92B-1264-101C-8A2F-040224009C02}
.br
.fi
.TP
To initialize a licensed control use the following pattern:
.IP
.nf
.br
    {8E27C92B-1264-101C-8A2F-040224009C02}:<LicenseKey>
.br
.fi
.TP
To connect to an already running object use the following pattern:
.IP
.nf
.br
    {8E27C92B-1264-101C-8A2F-040224009C02}&
.br
.fi
The first two patterns can be combined, e.g. to initialize a licensed control on a remote machine:
.PP
.nf
.br
    ctrl->setControl("DOMAIN/user:password@server/{8E27C92B-1264-101C-8A2F-040224009C02}:LicenseKey");
.br
.fi
.PP
The control's read function always returns the control's UUID, if provided including the license key, and the name of the server, but not including the username, the domain or the password.
.PP
Set this property's value with setControl() and get this property's value with control().

.SH "SEE ALSO"
.BR http://doc.trolltech.com/qaxbase.html
.BR http://www.trolltech.com/faq/tech.html
.SH COPYRIGHT
Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the
license file included in the distribution for a complete license
statement.
.SH AUTHOR
Generated automatically from the source code.
.SH BUGS
If you find a bug in Qt, please report it as described in
.BR http://doc.trolltech.com/bughowto.html .
Good bug reports help us to help you. Thank you.
.P
The definitive Qt documentation is provided in HTML format; it is
located at $QTDIR/doc/html and can be read using Qt Assistant or with
a web browser. This man page is provided as a convenience for those
users who prefer man pages, although this format is not officially
supported by Trolltech. 
.P
If you find errors in this manual page, please report them to
.BR [email protected] .
Please include the name of the manual page (qaxbase.3qt) and the Qt
version (3.3.8).