Is it Possible to pass structures in DUAL interfaces

[Satya Ramesh]

Hi all

how to pass structures to server.
how to pass array of structures.

My COM server is a dual interface support and developed using ATL.


Thanks

-satya

[SKB]

It is possible to pass structures and arrays of structures, the problem is you will need to have a Proxy-stub dll that will be used for marshalling the extra data.

If you declare the structure in the IDL and then use it has a type in the call.

If you wish to pass arrays of structures then you will need to do the following.

// This function will return an array of items
MyComCall([out] int *NumberOfItems, [out, size_is(*NumberOfItems)] MYSTRUCTURE_t **pStructure)

The above is from memory, I have written a couple of ATL apps that pass back structure information, if you have any problems I will try and look the code out.

[muscicapa]

Will this work with out of process servers too ?

please tell me about the IDL bit of this process,
sample code would bew useful.