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docu added to createOleObjectWrapper(IUnknown, const Type&)

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This commit is contained in:
Joachim Lingner
2000-10-05 08:30:23 +00:00
parent 0b994d134d
commit 35dfc96db4
1 changed files with 22 additions and 16 deletions
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38
extensions/source/ole/unoconversionutilities.hxx
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@@ -2,9 +2,9 @@
* *
* $RCSfile: unoconversionutilities.hxx,v $ * $RCSfile: unoconversionutilities.hxx,v $
* *
* $Revision: 1.1.1.1 $ * $Revision: 1.2 $
* *
* last change: $Author: hr $ $Date: 2000-09-18 16:16:41 $ * last change: $Author: jl $ $Date: 2000-10-05 09:30:23 $
* *
* The Contents of this file are made available subject to the terms of * The Contents of this file are made available subject to the terms of
* either of the following licenses * either of the following licenses
@@ -1010,8 +1010,22 @@ Any UnoConversionUtilities<T>::createOleObjectWrapper(IUnknown* pUnknown)
return ret; return ret;
} }
// if the object supports only one type then it does not have to implement the property // If the parameter "aType" has a value then the COM object ( pUnknown) is supposed to
// SUPPORTER_INTERFACES_PROP ( define) // implement the interface described by "aType". Moreover it ( pUnknown) can implement
// several other
// UNO interfaces in which case it has to support the SUPPORTED_INTERFACES_PROP (see
// #define) property. That property contains all names of interfaces.
// "pUnknown" is wrapped by a COM wrapper object that implements XInvocation, e.g.
// IUnknownWrapper_Impl. Additionally an object of type "aType" is created by help
// of the INTERFACE_ADAPTER_FACTORY (see #define) service. The implementation of
// "aType" calls on the COM wrapper's XInvocation::invoke. If the COM object supports
// more then one UNO interfaces, as can be determined by the property
// SUPPORTED_INTERFACES_PROP, then the INTERFACE_ADAPTER_FACTORY creates an object that
// implements all these interfaces.
// This is only done if "pUnknown" is not already a UNO wrapper,
// that is it is actually NOT an UNO object that was converted to a COM object. If it is an
// UNO wrapper than the original UNO object is being extracted, queried for "aType" (if
// it is no struct) and returned.
template<class T> template<class T>
Any UnoConversionUtilities<T>::createOleObjectWrapper(IUnknown* pUnknown, const Type& aType) Any UnoConversionUtilities<T>::createOleObjectWrapper(IUnknown* pUnknown, const Type& aType)
{ {
@@ -1029,6 +1043,8 @@ Any UnoConversionUtilities<T>::createOleObjectWrapper(IUnknown* pUnknown, const
} }
else else
{ {
// Check if "pUnknown" is a UNO wrapper. Then it supports IUnoObjectWrapper
// and we extract the original UNO object.
CComQIPtr<IUnoObjectWrapper> spUno( pUnknown); CComQIPtr<IUnoObjectWrapper> spUno( pUnknown);
if( spUno) if( spUno)
{ {
@@ -1051,18 +1067,10 @@ Any UnoConversionUtilities<T>::createOleObjectWrapper(IUnknown* pUnknown, const
} }
else else
{ {
// "pUnknown" is a real COM object.
Reference<XInterface> xInt= createComWrapperInstance(); Reference<XInterface> xInt= createComWrapperInstance();
if( xInt.is()) if( xInt.is())
{ {
// Reference<XInitialization> xInit( xInt, UNO_QUERY);
// if( xInit.is())
// {
// Any params[2];
// params[0] <<= (sal_uInt32) pUnknown;
// params[1] <<= aType;
// xInit->initialize( Sequence<Any>( params, 2));
// }
Reference<XInvocation> xInv( xInt, UNO_QUERY); Reference<XInvocation> xInv( xInt, UNO_QUERY);
Sequence<Type> seqTypes; Sequence<Type> seqTypes;
@@ -1088,9 +1096,7 @@ Any UnoConversionUtilities<T>::createOleObjectWrapper(IUnknown* pUnknown, const
// We create an adapter object that does not only implement the required type but also // We create an adapter object that does not only implement the required type but also
// all types that the COM object pretends to implement. An COM object must therefore // all types that the COM object pretends to implement. An COM object must therefore
// support the property "_implementedInterfaces". If it does not an Adapter of param // support the property "_implementedInterfaces".
// type
// Sequence<Type> seqTypes;
CComDispatchDriver disp( pUnknown); CComDispatchDriver disp( pUnknown);
if( disp) if( disp)
{ {