Call C# Dll from C

22 May 2006 11:51 AM

Ash

Hi,

I need to call a C# dll from C (Mecury LoadRunner Vugen Script to be more
specific) I have been told that i need to create a C++ wrapper class, and
have instructions for doing this for Visual Studio 2003.
I have using Visual Studio 2005 and understand it is different to create a
mixed mode dll with .Net 2.0?
Also I am very unexperienced with Dlls and C++, but i understand that i need
to do something with structs in order for me to pass strings across from my
C# managed code dll to my C++ wrapper dll and then finally the call from my C
script.

Thanks

Ash

22 May 2006 1:13 PM

David Browne

Show quote

"Ash" <A**@discussions.microsoft.com> wrote in message
news:B37A965F-5BB5-4043-A4EF-B6043FE3E4F7@microsoft.com...
> Hi,
>
> I need to call a C# dll from C (Mecury LoadRunner Vugen Script to be more
> specific) I have been told that i need to create a C++ wrapper class, and
> have instructions for doing this for Visual Studio 2003.
> I have using Visual Studio 2005 and understand it is different to create a
> mixed mode dll with .Net 2.0?
> Also I am very unexperienced with Dlls and C++, but i understand that i
> need
> to do something with structs in order for me to pass strings across from
> my
> C# managed code dll to my C++ wrapper dll and then finally the call from
> my C
> script.
>

Investigate whether you can access COM components from your environment.
The process of creating a COM component in .NET is much easier (you can do
it in C#) then creating a dll in C++.

David

23 May 2006 3:10 PM

Ash

No, i dont think i can call COM components from C in that environment, all i
really need is a dll written in C/C++ that wraps a single function in a c#
dll.

would this really require a lot of work? the c# dll returns a string. I
would be very greatful if anybody has any example code.

Thanks.

Show quote

"David Browne" wrote:

>
> "Ash" <A**@discussions.microsoft.com> wrote in message
> news:B37A965F-5BB5-4043-A4EF-B6043FE3E4F7@microsoft.com...
> > Hi,
> >
> > I need to call a C# dll from C (Mecury LoadRunner Vugen Script to be more
> > specific) I have been told that i need to create a C++ wrapper class, and
> > have instructions for doing this for Visual Studio 2003.
> > I have using Visual Studio 2005 and understand it is different to create a
> > mixed mode dll with .Net 2.0?
> > Also I am very unexperienced with Dlls and C++, but i understand that i
> > need
> > to do something with structs in order for me to pass strings across from
> > my
> > C# managed code dll to my C++ wrapper dll and then finally the call from
> > my C
> > script.
> >
>
>
> Investigate whether you can access COM components from your environment.
> The process of creating a COM component in .NET is much easier (you can do
> it in C#) then creating a dll in C++.
>
> David
>
>
>