Linker Error in Managed Wrapper when calling Method with CString Parameter

[Sebastian Dau]

Hello Newsgroup,

I'm struggeling with wrapping a dll using MFC CStrings.

Code:

class CLASSEXPORTDLL_API CClassExportDll {

public:

long InitMcs5 (HWND hWnd, CString path);

}


When I try to call that member method linker fails with:

Error 3 error LNK2019: unresolved external symbol "public: long __thiscall
CClassExportDll::InitMcs5(struct HWND__ *,class ATL::CStringT<wchar_t,class
StrTraitMFC_DLL<wchar_t,class ATL::ChTraitsCRT<wchar_t >)"
(?InitMcs5@CClassExportDll@@$$FQAEJPAUHWND__@@V?$C StringT@_WV?$StrTraitMFC_DLL@_WV?$ChTraitsCRT@_W@A TL@@@@@ATL@@@Z)
referenced in function "public: __clrcall
CarlZeissWrapper::Test::Test(void)" (??0Test@CarlZeissWrapper@@$$FQ$AAM@XZ)
CarlZeiss.Wrapper.obj

Does anybody know how to successfully call an umanaged member function
consuming a MFC CString from
a C++/CLI mixed code project?

Thanks, Sebastian Dau