C# -> C++ call issue

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Jais Joy - 22 Feb 2008 06:30 GMT

Following is my issue.

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I have a unmanaged application ( C++ , .exe ) which has a class CMyClass
with a public member fMyFunct(). You can assume this C++ application is
built with /clr option.

I need to instantiate CMyClass in a different managed ( C# ) application and
call fMyFunct().

Many thanks if any of you can send me a sample which demonstrate above
things ( Remember I can't manipulate C++ application apart from project
settings. But you can do anything in C# application )

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Reply to this Message

Nicholas Paldino [.NET/C# MVP] - 22 Feb 2008 13:29 GMT

Jais,

Just using /clr should produce a managed executable for you. Because of
that, you should be able to set a reference to your executable from other
.NET code (as of .NET 2.0).

Are you creating CMyClass as a managed class, or an unmanaged class?

Signature

- Nicholas Paldino [.NET/C# MVP]
- mvp@spam.guard.caspershouse.com

> Following is my issue.
>
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Reply to this Message

Ben Voigt [C++ MVP] - 22 Feb 2008 19:05 GMT

> Jais,
>
> Just using /clr should produce a managed executable for you. Because
> of that, you should be able to set a reference to your executable from
> other .NET code (as of .NET 2.0).

Mixed-mode executables can't be used as references, because the loader
tables necessary for fixups aren't present.

> Are you creating CMyClass as a managed class, or an unmanaged class?
>
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>>
>> ----------------------------------------------------

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Jais Joy - 25 Feb 2008 05:33 GMT

You have almost answered my question. Many thanks. Just another question.
Can I have a VC++ 6.0 executable with a managed ( C# ) dll loaded into it
which contains functions to instantiate certain classes in the executable?

Background of this is , I am trying to use unit test scripts generated with
/clr:safe option. I am thinking of generating some unit test scripts in
VS-2005 Team Edition with /clr:safe option ( although MFC application
compiles with errors , It generate unit test scripts ). I would like to use
these generated unit test scripts some how.

Thanks.

> > Jais,
> >
[quoted text clipped - 24 lines]
> >>
> >> ----------------------------------------------------

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C# -> C++ call issue

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