Calling Managed Code from Unmanaged Code ?????

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Calling Managed Code from Unmanaged Code ?????

I found this great example on this issue:

http://www.codeproject.com/managedcpp/unmanaged_to_managed.asp

unfortunatelly , it only works on v.s.net 2003 , and in order to compile it in v.s.net 2005 with the /clr option, you have to make a lot of changes in the code like replacing _gc with ref and alot of other things. I tried to do it, but after all the changes, it still didn't work

can someone refer me to an example which is suited to the new visual c++ syntax or explain how to migrate from the managed c++ extensions to the new semantics

thanks, Uri

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Calling Managed Code from Unmanaged Code ?????

  • MariaJeff

    Uriparan wrote:
    you can't add a reference from a native code and then refer specifically to the managed component methods , that's the all point.

    It was the same in VC++ 2003 too. To add a .NET reference, you need /clr compilation.

    Alternatively, you can use CCW as I mentioned.



  • bev a

    Hey, thanks, I managed to do it.I'll recommand your reply

  • Marcin Belczewski

    you can't add a reference from a native code and then refer specifically to the managed component methods , that's the all point.

  • Amanda Theo

    Calling managed code from native code is essentially as simple as enabling /clr compilation and adding a reference to the managed assembly. Once you do that, you can directly use the managed classes from your code.

    Alternatively, if you do not want to enable /clr, you could use CCW, though you won't be able to use objects that do not have default constructors, and all the COM stuff may be a trifle confusing if you are not used to BSTRs and SAFEARRAYs.



  • Arnaud H

    Hi, you were right after all!

    the link that I brougt at the top of this page was refering to a project that has been done on v.s.net 2003 before the CLR option was introduced in v.s.net 2005. that's why it's not straightforward solution.

    thank you , I'll recommend your replies.

  • larsw

    Uriparan wrote:

    no, it's not correct what you wrote.

    you can use Rcw only if you're are trying to reference the nanaaged code from a Com object(you need to have a file extension tlb) , but if you're trying to reference it from a native c++ code ,, you can't use the Rcw.

    also, you can't reference a c# class library project from a class library CLR project,

    I was not talking of RCW, I was talking about CCW - they do opposite things.

    And you can reference a C# lib from a C++/CLI lib. I don't understand why you say that's not possible.

    C++/CLI can be used to do "everything" that can be done with any other CLI language.



  • Henio

    no, it's not correct what you wrote.

    you can use Rcw only if you're are trying to reference the nanaaged code from a Com object(you need to have a file extension tlb) , but if you're trying to reference it from a native c++ code ,, you can't use the Rcw.

    also, you can't reference a c# class library project from a class library CLR project,


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