Using a Delphi DLL in C++

Question

How can I use a DLL written in Delphi in my C++ project (console application)?

I have already read about wrappers. Is there an easier way than that? Or how does this method (wrapper) work?

As I remember there was a strange rule in Borland Delphi/C++ 6 DLL: if you had a function name: FooFunction, you had to look for _FooFunction by GetProcAddress. Additionally there was an application to change the DLL interface from/to Boralnd interface to/from standard DLL interface. link — Naszta
– Naszta, Commented May 16, 2011 at 14:43
I used a DLL in c++ long time a go,as i remember there was some borland tool that generate lib from DLL and I used it with my wrapper header tha I written;; — jalal sadeghi
– jalal sadeghi, Commented Mar 5, 2013 at 17:58

jszpilewski · Accepted Answer · 2011-05-16 14:45:23Z

1

It is trivial if you are compiling your C++ project with C++Builder. Just include in your code the C++ wrapper headers generated by the Delphi compiler and link your code with the Delphi library stubs.

However I am not sure if you can manage to do it if you do not have access to wrappers, Delphi source code or Delphi compiler. In such a case or if you are not using C++Builder you must apply typical usage of DLLs and follow standard call convention and COM rules if Delphi code is exporting OO features as COM objects.

answered May 16, 2011 at 14:45

jszpilewski

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2 Comments

Alireza Over a year ago

@ Craig Stuntz: would you please explain this method? I can't find a good reference for that I'll appreciate if you add an example. thanks a lot

jszpilewski Over a year ago

@Alireza: Could you specify if you are interested in the details of using C++Builder?

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