Is it possible to use DllImport to access namespaces?

Question

I just created an unmanaged C++ DLL and am trying to use DllImport in my C# app to access the function calls. However, each function belongs to its own namespace (there are multiple header files, multiple namespaces, multiple class files). When I try calling the function DllImport it says the entry point can't be found, and I can't help but feel it has to do with namespaces. How do I call my functions using their unique namespaces? Thanks.

Can you provide some code please? – Odys Jun 13 '13 at 22:44 — Odys, Jun 13 '13 at 22:44
I assume you're exporting your functions correctly? – Simon Whitehead Jun 13 '13 at 22:45 — Simon Whitehead, Jun 13 '13 at 22:45

score 3 · Answer 1 · answered Jun 13 '13 at 22:51

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If you want to check the exported names of your functions you can use:

dumpbin /exports my_native_lib.dll

If it does not display any exports, there is something wrong with the way the functions are exported and we'll need more code.

answered Jun 13 '13 at 22:51

Pragmateek

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score 2 · Answer 2 · edited May 23 '17 at 12:13

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DllImport will work for 'global' C functions, not C++ classes - for C++ classes you'll have to create C wrappers for the functions you need. See: using a class defined in a c++ dll in c# code

edited May 23 '17 at 12:13

Community

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answered Jun 13 '13 at 22:57

Dave Doknjas

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score 1 · Answer 3 · answered Jun 18 '13 at 08:51

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you can use dependency walker to see the exported functions names of any dll. this way you could call on mangled function names.

answered Jun 18 '13 at 08:51

geva30

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Is it possible to use DllImport to access namespaces?

3 Answers3