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< td align = "right" valign = "center" > < img src = "logo32.png" align = "right" width = "64" height = "32" border = "0" > < / td > < / tr > < / table > < h1 align = center > TQAxFactory Class Reference< br > < small > [< a href = "qaxserver.html" > TQAxServer module< / a > ]< / small > < / h1 >
< p > The TQAxFactory class defines a factory for the creation of COM components.
< a href = "#details" > More...< / a >
< p > This class is part of the < b > TQt ActiveTQt Extension< / b > .
< p > < tt > #include < < a href = "qaxfactory-h.html" > qaxfactory.h< / a > > < / tt >
< p > < a href = "qaxfactory-members.html" > List of all member functions.< / a >
< h2 > Public Members< / h2 >
< ul >
< li class = fn > < a href = "#TQAxFactory" > < b > TQAxFactory< / b > < / a > ( const TQUuid & libid, const TQUuid & appid )< / li >
< li class = fn > virtual < a href = "#~TQAxFactory" > < b > ~TQAxFactory< / b > < / a > ()< / li >
< li class = fn > virtual TQStringList < a href = "#featureList" > < b > featureList< / b > < / a > () const = 0< / li >
< li class = fn > virtual TQWidget * < a href = "#create" > < b > create< / b > < / a > ( const TQString & key, TQWidget * parent = 0, const char * name = 0 )< / li >
< li class = fn > virtual TQObject * < a href = "#createObject" > < b > createObject< / b > < / a > ( const TQString & key, TQObject * parent = 0, const char * name = 0 )< / li >
< li class = fn > virtual TQMetaObject * < a href = "#metaObject" > < b > metaObject< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > virtual bool < a href = "#createObjectWrapper" > < b > createObjectWrapper< / b > < / a > ( TQObject * object, IDispatch ** wrapper )< / li >
< li class = fn > virtual TQUuid < a href = "#classID" > < b > classID< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > virtual TQUuid < a href = "#interfaceID" > < b > interfaceID< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > virtual TQUuid < a href = "#eventsID" > < b > eventsID< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > virtual TQUuid < a href = "#typeLibID" > < b > typeLibID< / b > < / a > () const< / li >
< li class = fn > virtual TQUuid < a href = "#appID" > < b > appID< / b > < / a > () const< / li >
< li class = fn > virtual void < a href = "#registerClass" > < b > registerClass< / b > < / a > ( const TQString & key, TQSettings * settings ) const< / li >
< li class = fn > virtual void < a href = "#unregisterClass" > < b > unregisterClass< / b > < / a > ( const TQString & key, TQSettings * settings ) const< / li >
< li class = fn > virtual bool < a href = "#validateLicenseKey" > < b > validateLicenseKey< / b > < / a > ( const TQString & key, const TQString & licenseKey ) const< / li >
< li class = fn > virtual TQString < a href = "#exposeToSuperClass" > < b > exposeToSuperClass< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > virtual bool < a href = "#stayTopLevel" > < b > stayTopLevel< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > virtual bool < a href = "#hasStockEvents" > < b > hasStockEvents< / b > < / a > ( const TQString & key ) const< / li >
< li class = fn > virtual bool < a href = "#isService" > < b > isService< / b > < / a > () const< / li >
< li class = fn > enum < a href = "#ServerType-enum" > < b > ServerType< / b > < / a > { SingleInstance, MultipleInstances }< / li >
< / ul >
< h2 > Static Public Members< / h2 >
< ul >
< li class = fn > bool < a href = "#isServer" > < b > isServer< / b > < / a > ()< / li >
< li class = fn > TQString < a href = "#serverDirPath" > < b > serverDirPath< / b > < / a > ()< / li >
< li class = fn > TQString < a href = "#serverFilePath" > < b > serverFilePath< / b > < / a > ()< / li >
< li class = fn > bool < a href = "#startServer" > < b > startServer< / b > < / a > ( ServerType type = MultipleInstances )< / li >
< li class = fn > bool < a href = "#stopServer" > < b > stopServer< / b > < / a > ()< / li >
< / ul >
< hr > < a name = "details" > < / a > < h2 > Detailed Description< / h2 >
< p > This class is defined in the < b > TQt < a href = "activentqt.html#ActiveTQt" > ActiveTQt< / a > Extension< / b > , which can be found in the < tt > qt/extensions< / tt > directory. It is not included in the main TQt API.
< p >
The TQAxFactory class defines a factory for the creation of COM components.
< p >
<!-- index TQAXFACTORY_DEFAULT --> < a name = "TQAXFACTORY_DEFAULT" > < / a > <!-- index TQAXFACTORY_EXPORT --> < a name = "TQAXFACTORY_EXPORT" > < / a > <!-- index TQAXFACTORY_BEGIN --> < a name = "TQAXFACTORY_BEGIN" > < / a > <!-- index TQAXFACTORY_END --> < a name = "TQAXFACTORY_END" > < / a > <!-- index TQAXCLASS --> < a name = "TQAXCLASS" > < / a >
< p > 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 < a href = "qaxfactory.html#TQAXFACTORY_DEFAULT" > TQAXFACTORY_DEFAULT< / a > macro in any
implementation file (e.g. main.cpp) to instantiate and export the
default factory:
< p > < pre >
#include < < a href = "qapplication-h.html" > ntqapplication.h< / a > >
#include < < a href = "qaxfactory-h.html" > qaxfactory.h< / a > >
#include "theactivex.h"
TQAXFACTORY_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
)
< / pre >
< p > If you implement your own factory reimplement the pure virtual
functions, provide the unique identifiers for the ActiveX
controls, and use the < a href = "qaxfactory.html#TQAXFACTORY_EXPORT" > TQAXFACTORY_EXPORT< / a > macro to instantiate
and export it:
< p > < pre >
TQStringList ActiveTQtFactory::featureList() const
{
< a href = "ntqstringlist.html" > TQStringList< / a > list;
list < < "ActiveX1";
list < < "ActiveX2";
...
return list;
}
TQWidget *ActiveTQtFactory::create( const < a href = "ntqstring.html" > TQString< / a > & key, TQWidget *parent, const char *name )
{
if ( key == "ActiveX1" )
return new ActiveX1( parent, name );
if ( key == "ActiveX2" )
return new ActiveX2( parent, name );
...
return 0;
}
TQUuid ActiveTQtFactory::classID( const < a href = "ntqstring.html" > TQString< / a > & key ) const
{
if ( key == "ActiveX1" )
return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
...
return TQUuid();
}
TQUuid ActiveTQtFactory::interfaceID( const < a href = "ntqstring.html" > TQString< / a > & key ) const
{
if ( key == "ActiveX1" )
return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
...
return TQUuid();
}
TQUuid ActiveTQtFactory::eventsID( const < a href = "ntqstring.html" > TQString< / a > & key ) const
{
if ( key == "ActiveX1" )
return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
...
return TQUuid();
}
TQAXFACTORY_EXPORT(
MyFactory, // factory class
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
)
< / pre >
< p > If you use the < tt > TQ_CLASSINFO< / tt > macro to provide the unique identifiers
or other attributes for your class you can use the < a href = "qaxfactory.html#TQAXFACTORY_BEGIN" > TQAXFACTORY_BEGIN< / a > ,
< a href = "qaxfactory.html#TQAXCLASS" > TQAXCLASS< / a > and < a href = "qaxfactory.html#TQAXFACTORY_END" > TQAXFACTORY_END< / a > macros to expose one or more classes
as COM objects.
< p > < pre >
TQAXFACTORY_BEGIN(
"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
)
TQAXCLASS(Class1)
TQAXCLASS(Class2)
TQAXFACTORY_END()
< / pre >
< p > Only one TQAxFactory implementation may be instantiated and
exported by an ActiveX server application. This instance is accessible
through the global qAxFactory() function.
< p > A factory can also reimplement the < a href = "#registerClass" > registerClass< / a > () and
< a href = "#unregisterClass" > unregisterClass< / a > () 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 < a href = "#exposeToSuperClass" > exposeToSuperClass< / a > ().
< hr > < h2 > Member Type Documentation< / h2 >
< h3 class = fn > < a name = "ServerType-enum" > < / a > TQAxFactory::ServerType< / h3 >
< p > This enum specifies the different types of servers that can be
started with startServer.
< ul >
< li > < tt > TQAxFactory::SingleInstance< / tt > - The server can create only one instance of each
supplied class.
< li > < tt > TQAxFactory::MultipleInstances< / tt > - The server can create multiple instances of
each supplied class.
< / ul >
< hr > < h2 > Member Function Documentation< / h2 >
< h3 class = fn > < a name = "TQAxFactory" > < / a > TQAxFactory::TQAxFactory ( const < a href = "ntquuid.html" > TQUuid< / a > & libid, const < a href = "ntquuid.html" > TQUuid< / a > & appid )
< / h3 >
Constructs a TQAxFactory object that returns < em > libid< / em > and < em > appid< / em >
in the implementation of the respective interface functions.
< h3 class = fn > < a name = "~TQAxFactory" > < / a > TQAxFactory::~TQAxFactory ()< tt > [virtual]< / tt >
< / h3 >
Destroys the TQAxFactory object.
< h3 class = fn > < a href = "ntquuid.html" > TQUuid< / a > < a name = "appID" > < / a > TQAxFactory::appID () const< tt > [virtual]< / tt >
< / h3 >
< p > Reimplement this function to return the ActiveX server's
application identifier.
< h3 class = fn > < a href = "ntquuid.html" > TQUuid< / a > < a name = "classID" > < / a > TQAxFactory::classID ( const < a href = "ntqstring.html" > TQString< / a > & key ) const< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return the class identifier for each
< em > key< / em > returned by the < a href = "#featureList" > featureList< / a > () implementation, or an empty
< a href = "ntquuid.html" > TQUuid< / a > if this factory doesn't support the value of < em > key< / em > .
< p > The default implementation interprets < em > key< / em > as the class name,
and returns the value of the TQ_CLASSINFO entry "ClassID".
< h3 class = fn > < a href = "ntqwidget.html" > TQWidget< / a > * < a name = "create" > < / a > TQAxFactory::create ( const < a href = "ntqstring.html" > TQString< / a > & key, < a href = "ntqwidget.html" > TQWidget< / a > * parent = 0, const char * name = 0 )< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return a new widget for < em > key< / em > .
Propagate < em > parent< / em > and < em > name< / em > to the < a href = "ntqwidget.html" > TQWidget< / a > constructor. Return
0 if this factory doesn't support the value of < em > key< / em > .
< p > The returned widget will be exposed as an ActiveX control, e.g.
a COM object that can be embedded as a control into applications.
< p > The default implementation returns 0.
< h3 class = fn > < a href = "ntqobject.html" > TQObject< / a > * < a name = "createObject" > < / a > TQAxFactory::createObject ( const < a href = "ntqstring.html" > TQString< / a > & key, < a href = "ntqobject.html" > TQObject< / a > * parent = 0, const char * name = 0 )< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return a new object for < em > key< / em > .
Propagate < em > parent< / em > and < em > name< / em > to the < a href = "ntqwidget.html" > TQWidget< / a > constructor. Return
0 if this factory doesn't support the value of < em > key< / em > .
< p > If the object returned is a TQWidget it will be exposed as an ActiveX
control, otherwise the returned object will be exposed as a COM object.
< p > The default implementation returns the result < a href = "#create" > TQAxFactory::create< / a > () if
< em > parent< / em > is 0 or a widget, otherwise returns 0.
< h3 class = fn > bool < a name = "createObjectWrapper" > < / a > TQAxFactory::createObjectWrapper ( < a href = "ntqobject.html" > TQObject< / a > * object, IDispatch ** wrapper )< tt > [virtual]< / tt >
< / h3 >
< p > Reimplement this function to provide the COM object for < em > object< / em >
in < em > wrapper< / em > . Return TRUE if the function was successfull, otherwise
return FALSE.
< p > The default implementation creates a generic automation wrapper based
on the < a href = "metaobjects.html#meta-object" > meta object< / a > information of < em > object< / em > .
< h3 class = fn > < a href = "ntquuid.html" > TQUuid< / a > < a name = "eventsID" > < / a > TQAxFactory::eventsID ( const < a href = "ntqstring.html" > TQString< / a > & key ) const< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return the identifier of the event
interface for each < em > key< / em > returned by the < a href = "#featureList" > featureList< / a > ()
implementation, or an empty < a href = "ntquuid.html" > TQUuid< / a > if this factory doesn't support
the value of < em > key< / em > .
< p > The default implementation interprets < em > key< / em > as the class name,
and returns the value of the TQ_CLASSINFO entry "EventsID".
< h3 class = fn > < a href = "ntqstring.html" > TQString< / a > < a name = "exposeToSuperClass" > < / a > TQAxFactory::exposeToSuperClass ( const < a href = "ntqstring.html" > TQString< / a > & key ) const< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return the name of the super class of
< em > key< / em > up to which methods and properties should be exposed by the
ActiveX control.
< p > The default implementation interprets < em > key< / em > as the class name,
and returns the value of the TQ_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 < a href = "ntqwidget.html" > TQWidget< / a > will be
exposed.
< p > To only expose the functions and properties of the class itself,
reimplement this function to return < em > key< / em > .
< h3 class = fn > < a href = "ntqstringlist.html" > TQStringList< / a > < a name = "featureList" > < / a > TQAxFactory::featureList () const< tt > [pure virtual]< / tt >
< / h3 >
< p > Reimplement this function to return a list of the widgets (class
names) supported by this factory.
< h3 class = fn > bool < a name = "hasStockEvents" > < / a > TQAxFactory::hasStockEvents ( const < a href = "ntqstring.html" > TQString< / a > & key ) const< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return TRUE if the ActiveX control
< em > key< / em > should support the standard ActiveX events
< ul >
< li > Click
< li > DblClick
< li > KeyDown
< li > KeyPress
< li > KeyUp
< li > MouseDown
< li > MouseUp
< li > MouseMove
< / ul >
< p > The default implementation interprets < em > key< / em > as the class name,
and returns TRUE if the value of the TQ_CLASSINFO entry "StockEvents"
is "yes". Otherwise this function returns FALSE.
< h3 class = fn > < a href = "ntquuid.html" > TQUuid< / a > < a name = "interfaceID" > < / a > TQAxFactory::interfaceID ( const < a href = "ntqstring.html" > TQString< / a > & key ) const< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return the interface identifier for
each < em > key< / em > returned by the < a href = "#featureList" > featureList< / a > () implementation, or an
empty < a href = "ntquuid.html" > TQUuid< / a > if this factory doesn't support the value of < em > key< / em > .
< p > The default implementation interprets < em > key< / em > as the class name,
and returns the value of the TQ_CLASSINFO entry "InterfaceID".
< h3 class = fn > bool < a name = "isServer" > < / a > TQAxFactory::isServer ()< tt > [static]< / tt >
< / h3 >
Returns TRUE if the application has been started (by COM) as an ActiveX
server, otherwise returns FALSE.
< p > < pre >
int main( int argc, char**argv )
{
< a href = "ntqapplication.html" > TQApplication< / a > app( argc, argv );
if ( !TQAxFactory::isServer() ) {
// initialize for stand-alone execution
}
return app.< a href = "ntqapplication.html#exec" > exec< / a > () // standard event processing
}
< / pre >
< h3 class = fn > bool < a name = "isService" > < / a > TQAxFactory::isService () const< tt > [virtual]< / tt >
< / h3 >
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.
< p > The default implementation returns FALSE.
< h3 class = fn > < a href = "ntqmetaobject.html" > TQMetaObject< / a > * < a name = "metaObject" > < / a > TQAxFactory::metaObject ( const < a href = "ntqstring.html" > TQString< / a > & key ) const< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return the < a href = "ntqmetaobject.html" > TQMetaObject< / a > corresponding to
< em > key< / em > , or 0 if this factory doesn't support the value of < em > key< / em > .
< p > The default implementation returns the TQMetaObject for the class
< em > key< / em > .
< h3 class = fn > void < a name = "registerClass" > < / a > TQAxFactory::registerClass ( const < a href = "ntqstring.html" > TQString< / a > & key, < a href = "ntqsettings.html" > TQSettings< / a > * settings ) const< tt > [virtual]< / tt >
< / h3 >
Registers additional values for the class < em > key< / em > in the system
registry using the < em > settings< / em > 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.
< p > < pre >
settings-> writeEntry( "/CLSID/" + classID(key) + "/Implemented Categories/{00000000-0000-0000-000000000000}/.", TQString::null );
< / pre >
< p > If you reimplement this function you must also reimplement
< a href = "#unregisterClass" > unregisterClass< / a > () to remove the additional registry values.
< p > < p > See also < a href = "ntqsettings.html" > TQSettings< / a > .
< h3 class = fn > < a href = "ntqstring.html" > TQString< / a > < a name = "serverDirPath" > < / a > TQAxFactory::serverDirPath ()< tt > [static]< / tt >
< / h3 >
Returns the directory that contains the server binary.
< p > For out-of-process servers this is the same as
< a href = "ntqapplication.html#applicationDirPath" > TQApplication::applicationDirPath< / a > (). For in-process servers
that function returns the directory that contains the hosting
application.
< h3 class = fn > < a href = "ntqstring.html" > TQString< / a > < a name = "serverFilePath" > < / a > TQAxFactory::serverFilePath ()< tt > [static]< / tt >
< / h3 >
Returns the file path of the server binary.
< p > For out-of-process servers this is the same as
< a href = "ntqapplication.html#applicationFilePath" > TQApplication::applicationFilePath< / a > (). For in-process servers
that function returns the file path of the hosting application.
< h3 class = fn > bool < a name = "startServer" > < / a > TQAxFactory::startServer ( < a href = "qaxfactory.html#ServerType-enum" > ServerType< / a > type = MultipleInstances )< tt > [static]< / tt >
< / h3 >
< p > Starts the COM server with < em > type< / em > and returns TRUE if successful,
otherwise returns FALSE.
< p > Calling this function if the server is already running (or for an
in-process server) does nothing and returns TRUE.
< p > The server is started automatically with < em > type< / em > set to MultipleUse
if the server executable has been started with the < tt > -activex< / tt >
command line parameter.
< h3 class = fn > bool < a name = "stayTopLevel" > < / a > TQAxFactory::stayTopLevel ( const < a href = "ntqstring.html" > TQString< / a > & key ) const< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return TRUE if the ActiveX control < em > key< / em >
should be a top level window, e.g. a dialog. The default implementation
returns FALSE.
< h3 class = fn > bool < a name = "stopServer" > < / a > TQAxFactory::stopServer ()< tt > [static]< / tt >
< / h3 >
< p > Stops the COM server and returns TRUE if successful, otherwise
returns FALSE.
< p > Calling this function if the server is not running (or for an
in-process server) does nothing and returns TRUE.
< p > 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.
< p > The server is stopped automatically when the main() function returns.
< h3 class = fn > < a href = "ntquuid.html" > TQUuid< / a > < a name = "typeLibID" > < / a > TQAxFactory::typeLibID () const< tt > [virtual]< / tt >
< / h3 >
< p > Reimplement this function to return the ActiveX server's type
library identifier.
< h3 class = fn > void < a name = "unregisterClass" > < / a > TQAxFactory::unregisterClass ( const < a href = "ntqstring.html" > TQString< / a > & key, < a href = "ntqsettings.html" > TQSettings< / a > * settings ) const< tt > [virtual]< / tt >
< / h3 >
Unregisters any additional values for the class < em > key< / em > from the
system registry using the < em > settings< / em > object.
< p > < pre >
settings-> removeEntry( "/CLSID/" + classID(key) + "/Implemented Categories/{00000000-0000-0000-000000000000}/." );
< / pre >
< p > < p > See also < a href = "#registerClass" > registerClass< / a > () and < a href = "ntqsettings.html" > TQSettings< / a > .
< h3 class = fn > bool < a name = "validateLicenseKey" > < / a > TQAxFactory::validateLicenseKey ( const < a href = "ntqstring.html" > TQString< / a > & key, const < a href = "ntqstring.html" > TQString< / a > & licenseKey ) const< tt > [virtual]< / tt >
< / h3 >
Reimplement this function to return TRUE if < em > licenseKey< / em > is a valid
license for the class < em > key< / em > , or if the current machine is licensed.
< p > The default implementation returns TRUE if the class < em > key< / em > is not
licensed (ie. no TQ_CLASSINFO attribute "LicenseKey"), or if
< em > licenseKey< / em > 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.
<!-- eof -->
< hr > < p >
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