We have a COM dll written in delphi in our bin folder that call 2 static dll in the system32 folder (also COM in delphi).
My question is, how can we transform that dll in delphi into an interop dll ? Or is there any better way to do this ?
Thanks !
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2You shouldn't have to "transform" the DLL at all, unless it's using Delphi-specific types in the interface. Otherwise, it should work as-is; you just need to write the proper interop code on the .NET side. (If this is what you meant, would you mind editing your question for clarity?)Mason Wheeler– Mason Wheeler2011-06-02 16:06:39 +00:00Commented Jun 2, 2011 at 16:06
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2 Answers
.net consumes COM objects with ease. There's no need for interop, just import the type libraries and off you go!
MSDN has a comprehensive tutorial.
answered Jun 2, 2011 at 17:01
David Heffernan
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1 Comment
Arnaud Bouchez
Be aware than some DotNet types (at least
struct) can't be understood from the Delphi side. The VT_RECORD type is not handle by Delphi yet. You should rely on low-level types like Delphi string double integer.@David: I think that the import in dotNET is ultimately using InterOp. That said, as long as all the COM interface contracts are respected, a Delphi COM object is just like a C++, ATL object.
Andrea
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Bruce McGee
Should probably be a comment on David's answer instead of a new answer.
Andrea Raimondi
I agree, but I had no points to do that and the same applies to other answers of mine that have been deleted. No one bothered to check how many points I had at the time of writing!
