Dll problem

This is a discussion on Dll problem within the C++ Programming forums, part of the General Programming Boards category; Hi folks, after being recommended on using VS 2005 here from you folks I did so, and everything fine so ...

  1. #1
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    Question Dll problem

    Hi folks,

    after being recommended on using VS 2005 here from you folks I did so, and everything fine so far but now there is a problem, I was following a tutorial, and the writer was using VS 2003.

    The thing is that he created dll then he used dll functions in another c++ project everything fine on his computer (his studio created lib file) besides dll there is supposed to be created a lib file, but my VS 2005 (pro.) is not creating one and so I can't really import functions in another project.

    Basically I'm interested to create functions in C++ and use them in C#, can anyone help accomplish this? (I don't really need this for real world program its just for learning purposes)

    Thanx in advance
    Fiska

  2. #2
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    The compiler will not generate the .lib file if the dll contains no exported functions or objects. Put this in one of the *.cpp files and you will get a .lib file. Then do the same thing with the other functions/objects you want to be visible outside the dll.
    Code:
    __declspec( dllexport ) int foo;

  3. #3
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    I did that
    Code:
    extern "C" __declspec( dllexport ) int foo;
    and on the actuall project I tried to import it this way:
    Code:
    extern "C" __declspec( dllimport) int foo;
    but I get errors and I see no .lib file!

    Can someone tell me as well on how to use these functions in a C# project ?

  4. #4
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    I'm not going to answer the same question on two different boards.

    http://www.daniweb.com/techtalkforums/thread42693.html

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