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425 lines
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425 lines
22 KiB
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<title>TQAxFactory Class</title>
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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>
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<p>The TQAxFactory class defines a factory for the creation of COM components.
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<a href="#details">More...</a>
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<p>This class is part of the <b>TQt ActiveTQt Extension</b>.
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<p><tt>#include <<a href="qaxfactory-h.html">qaxfactory.h</a>></tt>
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<p><a href="qaxfactory-members.html">List of all member functions.</a>
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<h2>Public Members</h2>
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<ul>
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<li class=fn><a href="#TQAxFactory"><b>TQAxFactory</b></a> ( const TQUuid & libid, const TQUuid & appid )</li>
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<li class=fn>virtual <a href="#~TQAxFactory"><b>~TQAxFactory</b></a> ()</li>
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<li class=fn>virtual TQStringList <a href="#featureList"><b>featureList</b></a> () const = 0</li>
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<li class=fn>virtual TQWidget * <a href="#create"><b>create</b></a> ( const TQString & key, TQWidget * parent = 0, const char * name = 0 )</li>
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<li class=fn>virtual TQObject * <a href="#createObject"><b>createObject</b></a> ( const TQString & key, TQObject * parent = 0, const char * name = 0 )</li>
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<li class=fn>virtual TQMetaObject * <a href="#metaObject"><b>metaObject</b></a> ( const TQString & key ) const</li>
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<li class=fn>virtual bool <a href="#createObjectWrapper"><b>createObjectWrapper</b></a> ( TQObject * object, IDispatch ** wrapper )</li>
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<li class=fn>virtual TQUuid <a href="#classID"><b>classID</b></a> ( const TQString & key ) const</li>
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<li class=fn>virtual TQUuid <a href="#interfaceID"><b>interfaceID</b></a> ( const TQString & key ) const</li>
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<li class=fn>virtual TQUuid <a href="#eventsID"><b>eventsID</b></a> ( const TQString & key ) const</li>
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<li class=fn>virtual TQUuid <a href="#typeLibID"><b>typeLibID</b></a> () const</li>
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<li class=fn>virtual TQUuid <a href="#appID"><b>appID</b></a> () const</li>
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<li class=fn>virtual void <a href="#registerClass"><b>registerClass</b></a> ( const TQString & key, TQSettings * settings ) const</li>
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<li class=fn>virtual void <a href="#unregisterClass"><b>unregisterClass</b></a> ( const TQString & key, TQSettings * settings ) const</li>
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<li class=fn>virtual bool <a href="#validateLicenseKey"><b>validateLicenseKey</b></a> ( const TQString & key, const TQString & licenseKey ) const</li>
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<li class=fn>virtual TQString <a href="#exposeToSuperClass"><b>exposeToSuperClass</b></a> ( const TQString & key ) const</li>
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<li class=fn>virtual bool <a href="#stayTopLevel"><b>stayTopLevel</b></a> ( const TQString & key ) const</li>
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<li class=fn>virtual bool <a href="#hasStockEvents"><b>hasStockEvents</b></a> ( const TQString & key ) const</li>
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<li class=fn>virtual bool <a href="#isService"><b>isService</b></a> () const</li>
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<li class=fn>enum <a href="#ServerType-enum"><b>ServerType</b></a> { SingleInstance, MultipleInstances }</li>
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</ul>
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<h2>Static Public Members</h2>
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<ul>
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<li class=fn>bool <a href="#isServer"><b>isServer</b></a> ()</li>
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<li class=fn>TQString <a href="#serverDirPath"><b>serverDirPath</b></a> ()</li>
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<li class=fn>TQString <a href="#serverFilePath"><b>serverFilePath</b></a> ()</li>
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<li class=fn>bool <a href="#startServer"><b>startServer</b></a> ( ServerType type = MultipleInstances )</li>
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<li class=fn>bool <a href="#stopServer"><b>stopServer</b></a> ()</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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<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.
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<p>
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The TQAxFactory class defines a factory for the creation of COM components.
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<p>
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<!-- 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>
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<p> Implement this factory once in your ActiveX server to provide
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information about the components the server can create. If your
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server supports just a single ActiveX control, you can use the
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default factory implementation instead of implementing the factory
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yourself. Use the <a href="qaxfactory.html#TQAXFACTORY_DEFAULT">TQAXFACTORY_DEFAULT</a> macro in any
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implementation file (e.g. main.cpp) to instantiate and export the
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default factory:
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<p> <pre>
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#include <<a href="qapplication-h.html">ntqapplication.h</a>>
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#include <<a href="qaxfactory-h.html">qaxfactory.h</a>>
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#include "theactivex.h"
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TQAXFACTORY_DEFAULT(
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TheActiveX, // widget class
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"{01234567-89AB-CDEF-0123-456789ABCDEF}", // class ID
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"{01234567-89AB-CDEF-0123-456789ABCDEF}", // interface ID
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"{01234567-89AB-CDEF-0123-456789ABCDEF}", // event interface ID
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"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
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"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
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)
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</pre>
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<p> If you implement your own factory reimplement the pure virtual
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functions, provide the unique identifiers for the ActiveX
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controls, and use the <a href="qaxfactory.html#TQAXFACTORY_EXPORT">TQAXFACTORY_EXPORT</a> macro to instantiate
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and export it:
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<p> <pre>
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TQStringList ActiveTQtFactory::featureList() const
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{
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<a href="ntqstringlist.html">TQStringList</a> list;
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list << "ActiveX1";
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list << "ActiveX2";
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...
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return list;
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}
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TQWidget *ActiveTQtFactory::create( const <a href="ntqstring.html">TQString</a> &key, TQWidget *parent, const char *name )
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{
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if ( key == "ActiveX1" )
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return new ActiveX1( parent, name );
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if ( key == "ActiveX2" )
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return new ActiveX2( parent, name );
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...
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return 0;
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}
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TQUuid ActiveTQtFactory::classID( const <a href="ntqstring.html">TQString</a> &key ) const
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{
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if ( key == "ActiveX1" )
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return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
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...
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return TQUuid();
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}
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TQUuid ActiveTQtFactory::interfaceID( const <a href="ntqstring.html">TQString</a> &key ) const
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{
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if ( key == "ActiveX1" )
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return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
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...
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return TQUuid();
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}
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TQUuid ActiveTQtFactory::eventsID( const <a href="ntqstring.html">TQString</a> &key ) const
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{
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if ( key == "ActiveX1" )
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return "{01234567-89AB-CDEF-0123-456789ABCDEF}";
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...
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return TQUuid();
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}
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TQAXFACTORY_EXPORT(
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MyFactory, // factory class
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"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
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"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
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)
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</pre>
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<p> If you use the <tt>TQ_CLASSINFO</tt> macro to provide the unique identifiers
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or other attributes for your class you can use the <a href="qaxfactory.html#TQAXFACTORY_BEGIN">TQAXFACTORY_BEGIN</a>,
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<a href="qaxfactory.html#TQAXCLASS">TQAXCLASS</a> and <a href="qaxfactory.html#TQAXFACTORY_END">TQAXFACTORY_END</a> macros to expose one or more classes
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as COM objects.
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<p> <pre>
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TQAXFACTORY_BEGIN(
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"{01234567-89AB-CDEF-0123-456789ABCDEF}", // type library ID
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"{01234567-89AB-CDEF-0123-456789ABCDEF}" // application ID
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)
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TQAXCLASS(Class1)
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TQAXCLASS(Class2)
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TQAXFACTORY_END()
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</pre>
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<p> Only one TQAxFactory implementation may be instantiated and
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exported by an ActiveX server application. This instance is accessible
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through the global qAxFactory() function.
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<p> A factory can also reimplement the <a href="#registerClass">registerClass</a>() and
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<a href="#unregisterClass">unregisterClass</a>() functions to set additional flags for an ActiveX
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control in the registry. To limit the number of methods or
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properties a widget class exposes from its parent classes
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reimplement <a href="#exposeToSuperClass">exposeToSuperClass</a>().
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<hr><h2>Member Type Documentation</h2>
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<h3 class=fn><a name="ServerType-enum"></a>TQAxFactory::ServerType</h3>
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<p> This enum specifies the different types of servers that can be
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started with startServer.
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<ul>
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<li><tt>TQAxFactory::SingleInstance</tt> - The server can create only one instance of each
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supplied class.
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<li><tt>TQAxFactory::MultipleInstances</tt> - The server can create multiple instances of
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each supplied class.
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</ul>
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<hr><h2>Member Function Documentation</h2>
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<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 )
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</h3>
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Constructs a TQAxFactory object that returns <em>libid</em> and <em>appid</em>
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in the implementation of the respective interface functions.
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<h3 class=fn><a name="~TQAxFactory"></a>TQAxFactory::~TQAxFactory ()<tt> [virtual]</tt>
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</h3>
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Destroys the TQAxFactory object.
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<h3 class=fn><a href="ntquuid.html">TQUuid</a> <a name="appID"></a>TQAxFactory::appID () const<tt> [virtual]</tt>
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</h3>
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<p> Reimplement this function to return the ActiveX server's
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application identifier.
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<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>
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</h3>
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Reimplement this function to return the class identifier for each
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<em>key</em> returned by the <a href="#featureList">featureList</a>() implementation, or an empty
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<a href="ntquuid.html">TQUuid</a> if this factory doesn't support the value of <em>key</em>.
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<p> The default implementation interprets <em>key</em> as the class name,
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and returns the value of the TQ_CLASSINFO entry "ClassID".
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<h3 class=fn><a href="tqwidget.html">TQWidget</a> * <a name="create"></a>TQAxFactory::create ( const <a href="ntqstring.html">TQString</a> & key, <a href="tqwidget.html">TQWidget</a> * parent = 0, const char * name = 0 )<tt> [virtual]</tt>
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</h3>
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Reimplement this function to return a new widget for <em>key</em>.
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Propagate <em>parent</em> and <em>name</em> to the <a href="tqwidget.html">TQWidget</a> constructor. Return
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0 if this factory doesn't support the value of <em>key</em>.
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<p> The returned widget will be exposed as an ActiveX control, e.g.
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a COM object that can be embedded as a control into applications.
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<p> The default implementation returns 0.
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<h3 class=fn><a href="tqobject.html">TQObject</a> * <a name="createObject"></a>TQAxFactory::createObject ( const <a href="ntqstring.html">TQString</a> & key, <a href="tqobject.html">TQObject</a> * parent = 0, const char * name = 0 )<tt> [virtual]</tt>
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</h3>
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Reimplement this function to return a new object for <em>key</em>.
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Propagate <em>parent</em> and <em>name</em> to the <a href="tqwidget.html">TQWidget</a> constructor. Return
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0 if this factory doesn't support the value of <em>key</em>.
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<p> If the object returned is a TQWidget it will be exposed as an ActiveX
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control, otherwise the returned object will be exposed as a COM object.
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<p> The default implementation returns the result <a href="#create">TQAxFactory::create</a>() if
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<em>parent</em> is 0 or a widget, otherwise returns 0.
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<h3 class=fn>bool <a name="createObjectWrapper"></a>TQAxFactory::createObjectWrapper ( <a href="tqobject.html">TQObject</a> * object, IDispatch ** wrapper )<tt> [virtual]</tt>
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</h3>
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<p> Reimplement this function to provide the COM object for <em>object</em>
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in <em>wrapper</em>. Return TRUE if the function was successfull, otherwise
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return FALSE.
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<p> The default implementation creates a generic automation wrapper based
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on the <a href="metaobjects.html#meta-object">meta object</a> information of <em>object</em>.
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<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>
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</h3>
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Reimplement this function to return the identifier of the event
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interface for each <em>key</em> returned by the <a href="#featureList">featureList</a>()
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implementation, or an empty <a href="ntquuid.html">TQUuid</a> if this factory doesn't support
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the value of <em>key</em>.
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<p> The default implementation interprets <em>key</em> as the class name,
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and returns the value of the TQ_CLASSINFO entry "EventsID".
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<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>
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</h3>
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Reimplement this function to return the name of the super class of
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<em>key</em> up to which methods and properties should be exposed by the
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ActiveX control.
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<p> The default implementation interprets <em>key</em> as the class name,
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and returns the value of the TQ_CLASSINFO entry "ToSuperClass". If
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no such value is set the null-string is returned, and the functions
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and properties of all the super classes including <a href="tqwidget.html">TQWidget</a> will be
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exposed.
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<p> To only expose the functions and properties of the class itself,
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reimplement this function to return <em>key</em>.
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<h3 class=fn><a href="ntqstringlist.html">TQStringList</a> <a name="featureList"></a>TQAxFactory::featureList () const<tt> [pure virtual]</tt>
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</h3>
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<p> Reimplement this function to return a list of the widgets (class
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names) supported by this factory.
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<h3 class=fn>bool <a name="hasStockEvents"></a>TQAxFactory::hasStockEvents ( const <a href="ntqstring.html">TQString</a> & key ) const<tt> [virtual]</tt>
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</h3>
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Reimplement this function to return TRUE if the ActiveX control
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<em>key</em> should support the standard ActiveX events
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<ul>
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<li> Click
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<li> DblClick
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<li> KeyDown
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<li> KeyPress
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<li> KeyUp
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<li> MouseDown
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<li> MouseUp
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<li> MouseMove
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</ul>
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<p> The default implementation interprets <em>key</em> as the class name,
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and returns TRUE if the value of the TQ_CLASSINFO entry "StockEvents"
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is "yes". Otherwise this function returns FALSE.
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<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>
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</h3>
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Reimplement this function to return the interface identifier for
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each <em>key</em> returned by the <a href="#featureList">featureList</a>() implementation, or an
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empty <a href="ntquuid.html">TQUuid</a> if this factory doesn't support the value of <em>key</em>.
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<p> The default implementation interprets <em>key</em> as the class name,
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and returns the value of the TQ_CLASSINFO entry "InterfaceID".
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<h3 class=fn>bool <a name="isServer"></a>TQAxFactory::isServer ()<tt> [static]</tt>
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</h3>
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Returns TRUE if the application has been started (by COM) as an ActiveX
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server, otherwise returns FALSE.
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<p> <pre>
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int main( int argc, char**argv )
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{
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<a href="ntqapplication.html">TQApplication</a> app( argc, argv );
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if ( !TQAxFactory::isServer() ) {
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// initialize for stand-alone execution
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}
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return app.<a href="ntqapplication.html#exec">exec</a>() // standard event processing
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}
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</pre>
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<h3 class=fn>bool <a name="isService"></a>TQAxFactory::isService () const<tt> [virtual]</tt>
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</h3>
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Reimplement this function to return TRUE if the server is
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running as a persistent service (e.g. an NT service) and should
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not terminate even when all objects provided have been released.
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<p> The default implementation returns FALSE.
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<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>
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</h3>
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Reimplement this function to return the <a href="ntqmetaobject.html">TQMetaObject</a> corresponding to
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<em>key</em>, or 0 if this factory doesn't support the value of <em>key</em>.
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<p> The default implementation returns the TQMetaObject for the class
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<em>key</em>.
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<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>
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</h3>
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Registers additional values for the class <em>key</em> in the system
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registry using the <em>settings</em> object. The standard values have
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already been registed by the framework, but additional values,
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e.g. implemented categories, can be added in an implementation of
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this function.
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<p> <pre>
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settings->writeEntry( "/CLSID/" + classID(key) + "/Implemented Categories/{00000000-0000-0000-000000000000}/.", TQString::null );
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</pre>
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<p> If you reimplement this function you must also reimplement
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|
<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>
|
|
This file is part of the <a href="index.html">TQt toolkit</a>.
|
|
Copyright © 1995-2007
|
|
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
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