Create a Win Form dll in C# to be called from C

Question

Hi I'm dealing with the problem in subject and as I think that would have a general interest I'd like to have an already proven view on how to do it whether undes Visual Studio or not. My application is written in old plain C and needs some UI upgrading. I think that if I can do Win From menus in C# as dlls then I could hook them to the application using C calls. Thanks for any help! PS: I've fouund a solution but it's not generic seems like the COM and .NET worlds have intergation problems in terms of development although is obvious they coexist in the Windows OS

Opariti · Answer

Thanks Mahesh. As I said I've found a way around through a C++ dll wrapping another C# dll alltogether called by the C application. The link between COM and .NEt is done via C++. Your detail adds the final point that is the visibility of the C application to the C++ bridge.

Mahesh Chand · Answer

It is not possible to use a .NET DLL in plain C. The only way C++ can use .NET and vice versa is via COM. So you will have to create a DLL in .NET and then only COM applications can use it. You will have to convert (Export) your .NET DLL to a COM DLL using DLLExport utility.