Debug into unmanaged C++ code from managed dll

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Michael - 13 Jul 2005 20:02 GMT

I was wondering if it is possible and how to debug from managedC++ dll into
unmanaged C++ code. I tried, but without any success.
What I try to do is to wrap a unmanaged C++ dll using a Managed C++ wrapper
class so that managed code can access my unmanaged code.
Thanks.

Michael

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Carl Daniel [VC++ MVP] - 13 Jul 2005 20:23 GMT

> I was wondering if it is possible and how to debug from managedC++
> dll into unmanaged C++ code. I tried, but without any success.
> What I try to do is to wrap a unmanaged C++ dll using a Managed C++
> wrapper class so that managed code can access my unmanaged code.

It's possible, but not recommended. There's an option in project properties
under Configuration Properties|Debugging: Enable unmanaged debugging.

I don't recommend it expect when you've tried everything else because
mixed-mode debugging is very very (very) slow. Be sure to turn the option
off when you're done.

-cd

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Michael - 13 Jul 2005 20:37 GMT

Hi, Carl,
Thanks for the quick response. I am using Managed C++ extensions to wrap
the native C++ dll. I could not find the Enable unmanaged debugging property
in project properties. The property is available if the project is C#.
Is there anything else I could do?

Michael

> > I was wondering if it is possible and how to debug from managedC++
> > dll into unmanaged C++ code. I tried, but without any success.
[quoted text clipped - 9 lines]
>
> -cd

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Carl Daniel [VC++ MVP] - 13 Jul 2005 20:40 GMT

> Hi, Carl,
> Thanks for the quick response. I am using Managed C++ extensions to
> wrap the native C++ dll. I could not find the Enable unmanaged
> debugging property in project properties. The property is available
> if the project is C#. Is there anything else I could do?

I'm 99.99% sure it's there somewhere for C++ too - look around for it.

I believe that if you attach to the process instead of starting it under the
debugger than you can simply check both CLR and Native boxes in the window
that appears.

-cd

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William DePalo [MVP VC++] - 13 Jul 2005 22:49 GMT

> Thanks for the quick response. I am using Managed C++ extensions to wrap
> the native C++ dll. I could not find the Enable unmanaged debugging
> property
> in project properties. The property is available if the project is C#.
> Is there anything else I could do?

Are you using VS.Net 2003?

If so, from the menu,

for C++ projects,

Project->Properties->Debugging->Debugger Type

for C# projects

Project->Properties->Debugging->Enable Unmanaged Debugging

Regards,
Will

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Debug into unmanaged C++ code from managed dll

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