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QAxFactory(3qt) 								  QAxFactory(3qt)

NAME
       QAxFactory - Defines a factory for the creation of COM components

SYNOPSIS
       This class is part of the Qt ActiveQt Extension.

       #include <qaxfactory.h>

   Public Members
       QAxFactory ( const QUuid & libid, const QUuid & appid )
       virtual ~QAxFactory ()
       virtual QStringList featureList () const = 0
       virtual QWidget * create ( const QString & key, QWidget * parent = 0, const char * name =
	   0 )
       virtual QObject * createObject ( const QString & key, QObject * parent = 0, const char *
	   name = 0 )
       virtual QMetaObject * metaObject ( const QString & key ) const
       virtual bool createObjectWrapper ( QObject * object, IDispatch ** wrapper )
       virtual QUuid classID ( const QString & key ) const
       virtual QUuid interfaceID ( const QString & key ) const
       virtual QUuid eventsID ( const QString & key ) const
       virtual QUuid typeLibID () const
       virtual QUuid appID () const
       virtual void registerClass ( const QString & key, QSettings * settings ) const
       virtual void unregisterClass ( const QString & key, QSettings * settings ) const
       virtual bool validateLicenseKey ( const QString & key, const QString & licenseKey ) const
       virtual QString exposeToSuperClass ( const QString & key ) const
       virtual bool stayTopLevel ( const QString & key ) const
       virtual bool hasStockEvents ( const QString & key ) const
       virtual bool isService () const
       enum ServerType { SingleInstance, MultipleInstances }

   Static Public Members
       bool isServer ()
       QString serverDirPath ()
       QString serverFilePath ()
       bool startServer ( ServerType type = MultipleInstances )
       bool stopServer ()

DESCRIPTION
       This class is defined in the Qt ActiveQt Extension, which can be found in the
       qt/extensions directory. It is not included in the main Qt API.

       The QAxFactory class defines a factory for the creation of COM components.

       Implement this factory once in your ActiveX server to provide information about the
       components the server can create. If your server supports just a single ActiveX control,
       you can use the default factory implementation instead of implementing the factory
       yourself. Use the QAXFACTORY_DEFAULT macro in any implementation file (e.g. main.cpp) to
       instantiate and export the default factory:

	   #include <qapplication.h>
	   #include <qaxfactory.h>
	   #include "theactivex.h"
	   QAXFACTORY_DEFAULT(
	       TheActiveX,				 // widget class
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}", // class ID
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}", // interface ID
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}", // event interface ID
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}"  // application ID
	       )

       If you implement your own factory reimplement the pure virtual functions, provide the
       unique identifiers for the ActiveX controls, and use the QAXFACTORY_EXPORT macro to
       instantiate and export it:

	   QStringList ActiveQtFactory::featureList() const
	   {
	       QStringList list;
	       list << "ActiveX1";
	       list << "ActiveX2";
	       ...
	       return list;
	   }
	   QWidget *ActiveQtFactory::create( const QString &key, QWidget *parent, const char *name )
	   {
	       if ( key == "ActiveX1" )
		   return new ActiveX1( parent, name );
	       if ( key == "ActiveX2" )
		   return new ActiveX2( parent, name );
	       ...
	       return 0;
	   }
	   QUuid ActiveQtFactory::classID( const QString &key ) const
	   {
	       if ( key == "ActiveX1" )
		   return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
	       ...
	       return QUuid();
	   }
	   QUuid ActiveQtFactory::interfaceID( const QString &key ) const
	   {
	       if ( key == "ActiveX1" )
		   return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
	       ...
	       return QUuid();
	   }
	   QUuid ActiveQtFactory::eventsID( const QString &key ) const
	   {
	       if ( key == "ActiveX1" )
		   return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
	       ...
	       return QUuid();
	   }
	   QAXFACTORY_EXPORT(
	       MyFactory,				 // factory class
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}"  // application ID
	       )

       If you use the Q_CLASSINFO macro to provide the unique identifiers or other attributes for
       your class you can use the QAXFACTORY_BEGIN, QAXCLASS and QAXFACTORY_END macros to expose
       one or more classes as COM objects.

	   QAXFACTORY_BEGIN(
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
	       "{01234567-89AB-CDEF-0123-456789ABCDEF}"  // application ID
	   )
	       QAXCLASS(Class1)
	       QAXCLASS(Class2)
	   QAXFACTORY_END()

       Only one QAxFactory implementation may be instantiated and exported by an ActiveX server
       application. This instance is accessible through the global qAxFactory() function.

       A factory can also reimplement the registerClass() and unregisterClass() functions to set
       additional flags for an ActiveX control in the registry. To limit the number of methods or
       properties a widget class exposes from its parent classes reimplement
       exposeToSuperClass().

   Member Type Documentation
QAxFactory::ServerType
       This enum specifies the different types of servers that can be started with startServer.

       QAxFactory::SingleInstance - The server can create only one instance of each supplied
       class.

       QAxFactory::MultipleInstances - The server can create multiple instances of each supplied
       class.

MEMBER FUNCTION DOCUMENTATION
QAxFactory::QAxFactory ( const QUuid & libid, const QUuid & appid )
       Constructs a QAxFactory object that returns libid and appid in the implementation of the
       respective interface functions.

QAxFactory::~QAxFactory () [virtual]
       Destroys the QAxFactory object.

QUuid QAxFactory::appID () const [virtual]
       Reimplement this function to return the ActiveX server's application identifier.

QUuid QAxFactory::classID ( const QString & key ) const [virtual]
       Reimplement this function to return the class identifier for each key returned by the
       featureList() implementation, or an empty QUuid if this factory doesn't support the value
       of key.

       The default implementation interprets key as the class name, and returns the value of the
       Q_CLASSINFO entry "ClassID".

QWidget * QAxFactory::create ( const QString & key, QWidget * parent = 0, const char * name = 0 )
       [virtual]
       Reimplement this function to return a new widget for key. Propagate parent and name to the
       QWidget constructor. Return 0 if this factory doesn't support the value of key.

       The returned widget will be exposed as an ActiveX control, e.g. a COM object that can be
       embedded as a control into applications.

       The default implementation returns 0.

QObject * QAxFactory::createObject ( const QString & key, QObject * parent = 0, const char * name
       = 0 ) [virtual]
       Reimplement this function to return a new object for key. Propagate parent and name to the
       QWidget constructor. Return 0 if this factory doesn't support the value of key.

       If the object returned is a QWidget it will be exposed as an ActiveX control, otherwise
       the returned object will be exposed as a COM object.

       The default implementation returns the result QAxFactory::create() if parent is 0 or a
       widget, otherwise returns 0.

bool QAxFactory::createObjectWrapper ( QObject * object, IDispatch ** wrapper ) [virtual]
       Reimplement this function to provide the COM object for object in wrapper. Return TRUE if
       the function was successfull, otherwise return FALSE.

       The default implementation creates a generic automation wrapper based on the meta object
       information of object.

QUuid QAxFactory::eventsID ( const QString & key ) const [virtual]
       Reimplement this function to return the identifier of the event interface for each key
       returned by the featureList() implementation, or an empty QUuid if this factory doesn't
       support the value of key.

       The default implementation interprets key as the class name, and returns the value of the
       Q_CLASSINFO entry "EventsID".

QString QAxFactory::exposeToSuperClass ( const QString & key ) const [virtual]
       Reimplement this function to return the name of the super class of key up to which methods
       and properties should be exposed by the ActiveX control.

       The default implementation interprets key as the class name, and returns the value of the
       Q_CLASSINFO entry "ToSuperClass". If no such value is set the null-string is returned, and
       the functions and properties of all the super classes including QWidget will be exposed.

       To only expose the functions and properties of the class itself, reimplement this function
       to return key.

QStringList QAxFactory::featureList () const [pure virtual]
       Reimplement this function to return a list of the widgets (class names) supported by this
       factory.

bool QAxFactory::hasStockEvents ( const QString & key ) const [virtual]
       Reimplement this function to return TRUE if the ActiveX control key should support the
       standard ActiveX events

       Click

       DblClick

       KeyDown

       KeyPress

       KeyUp

       MouseDown

       MouseUp

       MouseMove

       The default implementation interprets key as the class name, and returns TRUE if the value
       of the Q_CLASSINFO entry "StockEvents" is "yes". Otherwise this function returns FALSE.

QUuid QAxFactory::interfaceID ( const QString & key ) const [virtual]
       Reimplement this function to return the interface identifier for each key returned by the
       featureList() implementation, or an empty QUuid if this factory doesn't support the value
       of key.

       The default implementation interprets key as the class name, and returns the value of the
       Q_CLASSINFO entry "InterfaceID".

bool QAxFactory::isServer () [static]
       Returns TRUE if the application has been started (by COM) as an ActiveX server, otherwise
       returns FALSE.

	   int main( int argc, char**argv )
	   {
	       QApplication app( argc, argv );
	       if ( !QAxFactory::isServer() ) {
		   // initialize for stand-alone execution
	       }
	       return app.exec() // standard event processing
	   }

bool QAxFactory::isService () const [virtual]
       Reimplement this function to return TRUE if the server is running as a persistent service
       (e.g. an NT service) and should not terminate even when all objects provided have been
       released.

       The default implementation returns FALSE.

QMetaObject * QAxFactory::metaObject ( const QString & key ) const [virtual]
       Reimplement this function to return the QMetaObject corresponding to key, or 0 if this
       factory doesn't support the value of key.

       The default implementation returns the QMetaObject for the class key.

void QAxFactory::registerClass ( const QString & key, QSettings * settings ) const [virtual]
       Registers additional values for the class key in the system registry using the settings
       object. The standard values have already been registed by the framework, but additional
       values, e.g. implemented categories, can be added in an implementation of this function.

	   settings->writeEntry( "/CLSID/" + classID(key) + "/Implemented Categories/{00000000-0000-0000-000000000000}/.", QString::null );

       If you reimplement this function you must also reimplement unregisterClass() to remove the
       additional registry values.

       See also QSettings.

QString QAxFactory::serverDirPath () [static]
       Returns the directory that contains the server binary.

       For out-of-process servers this is the same as QApplication::applicationDirPath(). For in-
       process servers that function returns the directory that contains the hosting application.

QString QAxFactory::serverFilePath () [static]
       Returns the file path of the server binary.

       For out-of-process servers this is the same as QApplication::applicationFilePath(). For
       in-process servers that function returns the file path of the hosting application.

bool QAxFactory::startServer ( ServerType type = MultipleInstances ) [static]
       Starts the COM server with type and returns TRUE if successful, otherwise returns FALSE.

       Calling this function if the server is already running (or for an in-process server) does
       nothing and returns TRUE.

       The server is started automatically with type set to MultipleUse if the server executable
       has been started with the -activex command line parameter.

bool QAxFactory::stayTopLevel ( const QString & key ) const [virtual]
       Reimplement this function to return TRUE if the ActiveX control key should be a top level
       window, e.g. a dialog. The default implementation returns FALSE.

bool QAxFactory::stopServer () [static]
       Stops the COM server and returns TRUE if successful, otherwise returns FALSE.

       Calling this function if the server is not running (or for an in-process server) does
       nothing and returns TRUE.

       Stopping the server will not invalidate existing objects, but no new objects can be
       created from the existing server process. Usually COM will start a new server process if
       additional objects are requested.

       The server is stopped automatically when the main() function returns.

QUuid QAxFactory::typeLibID () const [virtual]
       Reimplement this function to return the ActiveX server's type library identifier.

void QAxFactory::unregisterClass ( const QString & key, QSettings * settings ) const [virtual]
       Unregisters any additional values for the class key from the system registry using the
       settings object.

	   settings->removeEntry( "/CLSID/" + classID(key) + "/Implemented Categories/{00000000-0000-0000-000000000000}/." );

       See also registerClass() and QSettings.

bool QAxFactory::validateLicenseKey ( const QString & key, const QString & licenseKey ) const
       [virtual]
       Reimplement this function to return TRUE if licenseKey is a valid license for the class
       key, or if the current machine is licensed.

       The default implementation returns TRUE if the class key is not licensed (ie. no
       Q_CLASSINFO attribute "LicenseKey"), or if licenseKey matches the value of the
       "LicenseKey" attribute, or if the machine is licensed through a .LIC file with the same
       filename as this COM server.

SEE ALSO
       http://doc.trolltech.com/qaxfactory.html http://www.trolltech.com/faq/tech.html

COPYRIGHT
       Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com.  See the license file
       included in the distribution for a complete license statement.

AUTHOR
       Generated automatically from the source code.

BUGS
       If you find a bug in Qt, please report it as described in
       http://doc.trolltech.com/bughowto.html.	Good bug reports help us to help you. Thank you.

       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.

       If you find errors in this manual page, please report them to qt-bugs@trolltech.com.
       Please include the name of the manual page (qaxfactory.3qt) and the Qt version (3.3.8).

Trolltech AS				 2 February 2007			  QAxFactory(3qt)
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