CODEWITHSUNDEEP
multithreadingcommarshalling
JoeG
JoeG

Reputation: 13192

What is the preferred method of marshalling COM interfaces across threads?

What are the pros/cons of using the GIT as opposed to CoMarshalInterThreadInterfaceInStream and CoGetInterfaceAndReleaseStream for marshalling COM interfaces across threads?

Are there strong reasons for preferring one method over the other, or is it more a matter of personal preference?

Upvotes: 6

Views: 364

Answers (2)

Ian Ringrose
Ian Ringrose

Reputation: 51917

You need a copy of Essential COM by Bon Box, when I used to work with COM, I would reach for Don's book whenever I had this sort of question.

Upvotes: 0

Kim Gräsman
Kim Gräsman

Reputation: 7586

From MSDN:

If you are unmarshaling an interface pointer multiple times between apartments in a process, you might use the IGlobalInterfaceTable interface. With other techniques, you would have to remarshal each time.

Besides that, I would say it's mostly a matter of preference.

Upvotes: 5

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