I have recently started messing with C++ DLLs in C# but it seems that I am restricted to the kind of usage I have. I am able to export functions in a DLL that have C++ linkage but C# cannot find the entry points. The C linkage functions can be called. Someone told me that this probably has to do with name mangling. Is there a way around this?
I am currently using VS 2008 with C# and C++ projects in the same solution. I am using DLL import to load the C++ DLL (unmanaged route). I know that by using C++.NET and wrapping my functions in a class (managed), most of these problems with go away, but I found a ridiculous speed improvement in the unmanaged route. Am I correct on this?
Similar if I try to modify strings or classes passed into the C++ DLL, I get all sorts of garbage. Any suggestions?