Home/ Questions/Q 7908511
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-03T11:58:42+00:00

I have a visual studio 2005 c++ project (that uses QT framework). I would

  • 0

I have a visual studio 2005 c++ project (that uses QT framework). I would like to reference and use a .net 4 library that I have via COM. I know that if I have a .net project (.net 2 or .net 3.5) in 2005, I cannot reference the .net 4 library but I am curious to know if I would have any issues trying to use it in a c++ project thru COM. I’m not at a point were I can create and test a proof-of-concept application yet so I was wondering if anyone else has tried this or know anything about it.

Thanks

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Using COM is a fine way to get the CLR loaded so you can execute managed code. But you’ll have to use COM programming techniques in the C++ code. Using Add Reference doesn’t work, that’s a option that’s only available if you write managed code in the C++/CLI language.

    One good way is to use the #import directive in your C++ code. That can load a type library and auto-generates smart pointer types and method wrappers that you can directly call in your C++ code. Generate the type library you need with the Tlbexp.exe utility or the Regasm.exe /tlb command line option. QT has built-in COM support as well, I don’t know enough about it.

    • 0