Hi all.
>From the documentation on Qt ActiveX framework it is unclear how to use
(aggregate) a multiple interfaces.
For example, my ActiveX Server uses COM objects with two interfaces:
ICredentialProvider && ICredentialProviderCredential. To me it is unclear
how to me bind and to aggregate these two interfaces by means of
QAxAggregated and QAxBindable.
I can make it only for one interface, for example for ICredentialProvider:
...
...
class MyBindabObject : public QObject, public QAxBindable
{
Q_OBJECT
public:
MyBindabObject (QObject *parent = 0) {}
~MyBindabObject () {}
QAxAggregated *createAggregate()
{
return new CredentialProviderImpl();
}
}
...
...
class CredentialProviderImpl
: public QAxAggregated
, public ICredentialProvider
{
public:
...
...
long queryInterface(const QUuid &iid, void **iface)
{
static const QITAB qitab[] = {
QITABENT(CredentialProviderImpl, ICredentialProvider), {0}
};
return ::QISearch(this, qitab, iid, iface);
}
...
...
}
QAXFACTORY_DEFAULT(
MyBindabObject,
...
...
...
)
But, in this case I need to use still objects from
ICredentialProviderCredential. In principle, I can realize a separate
wrapper:
class CredentialImpl : public ICredentialProviderCredential
{
public:
...
...
QueryInterface(..)
AddRef();
Release();
...
}
But in this case I should re-implement the methods QueryInterface, Addref,
Release (and also to increment/decrement of the "reference counter")
manually.
Thus, whether it is possible to use the class QAxAggregated for several
interfaces?
e.g. to be available this code:
long queryInterface(const QUuid &iid, void **iface)
{
if (iid == IID_MyIface1)
return .. MyIface1;
if (iid == IID_MyIface2)
return .. MyIface2;
if (iid == IID_MyIfaceN)
return .. MyIfaceN;
}
???
BR,
Denis
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