String conversion b/t C# and native C++

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mtv - 31 Jan 2007 20:40 GMT

This question is probably already out there, but there's none I could find
for my scenario.

My C++ code has: CFunction(const char* data);
My C# code references C++ dll and needs to call this function. What data
type in C# is it for "data"? I think it will work w/ sbyte*, but then, how do
I create such datatype in C#?

Any working solutions are appreciated.

Thanks.

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Your 2 cents are worth $milion$. Thanks.

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mtv - 31 Jan 2007 21:22 GMT

Maybe it's worth to notice that I use IJW method to create a __gc C++ wrapper
around native C++ class. Then, I reference the C++ managed dll (wrapper) from
my C# project. So:

C# references and calls C++ wrapper (Managed) that in turns calls native C++
object (__nogc in the same dll w/ C++ wrapper class). In terms of calling
procedure:

__nogc C++ class has: public CallingFunction(char* data);
__gc C++ class has: (1) reference to __nogc class and (2) public
ManagedCallingFunction(char* data) { pUnmanaged->CallingFunction(data); }
C# class: MyManagedObj.ManagedCallingFunction(dataParam).

What data type of dataParam should it be? Compiler seems not to like string
and ask for sbyte*. How do I create sbyte* or anything compatible?

Thanks.

--Your 2 cents are worth $milion$. Thanks.

> This question is probably already out there, but there's none I could find
> for my scenario.
[quoted text clipped - 7 lines]
>
> Thanks.

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String conversion b/t C# and native C++

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