Re: How to return a collection object

I have a COM object called ILibrary. It has a property called OldBooks. I
want to return a collection of IBooks in this property. I have created a
collection object called IBooksEnum, which I want to return. I'm wondering
what is the syntax to copy the collection into an IDispatch**.

IDL for the OldBooks property:

[id(7), propget, helpstring("Retrieves a list of old books in the
library.")]
HRESULT OldBooks([out, retval] IDispatch** disp);Implementation:

STDMETHODIMP CLibrary::get_OldBooks(IDispatch** disp)
{
   // *******************************************************
   // what is the correct way to return an IBooksEnum object (via disp)
here?
   // ****************************************************

return S_OK;
}