> I'm pleased to say that I've found my answer.
>
> For reference, if you use VC's feature whereby you can add a class
> from a TLB file (through the Class Wizard), then OCX 1 can add a
> wrapper class for OCX 2 into its project.
>
> The wrapper class has three constructors - one of which accepts an
> LPDISPATCH (= IDispatch *), which is exactly what I wanted - it
> creates the wrapper class around the existing interface, giving me
> access to the OCX instance's methods (handling the invoking under the
> hood in the wrapper class).
Although this works, but the method Dee shows (using QueryInterface( )
for your own dual or private interface) is far more efficient, since the
IDispatch driver insists on using IDispatch::Invoke( ), which is
anything but efficient compared to native C++ method calls.
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Ehsan Akhgari
List Owner: [EMAIL PROTECTED]
[ Email: [EMAIL PROTECTED] ]
[ WWW: http://www.beginthread.com/Ehsan ]
"In Heaven an angel is nobody in particular."
George Bernard Shaw
