Link error linking from managed to unmanaged C++ despite linking to .lib file with exported symbols

Question

Despite following various posts on using and linking to unmanaged C++ code from a C++/CLI wrapper dll, I cannot resolve these link issues.

1>MyClassAdapter.ob         


        

Answer 1

Few points:

• Use Dependency Walker for the DLL and check if those symbols are actually in DLL.
• Ensure you are using correct lib file - a 32-bit LIB cannot be used for 64-bit build.
• Ensure the .CPP file used to build the class is actually unmanaged one (or the DLL itself, as a whole, is unmanaged).