I want a file DLL write by VC++ used in VisualBasic ?

[Thangnc]

:^)Hi all! I created a file DLL by VC++.After that to insert in VisualBasic I do following: From Menu choose Project->Reference...-> Browse to file *.DLL (Adsoft.DLL) Choose in ComboList (Prọect/Library)->Adsoft But any class and function in there don't to appear. If possible. Can you give me an example ? Thank !

[David Crow]

Thangnc wrote: But any class and function in there don't to appear. Have they been exported?

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"One must learn from the bite of the fire to leave it alone." - Native American Proverb

[Thangnc]

Thanks DavidCrow! I don't think your ? I write this class following: // Adsoft.H #ifdef ADSOFT_IMPL #define CLASS_DECL_ADSOFT _declspec(dllexport) #else #define CLASS_DECL_ADSOFT _declspec(dllimport) #endif #undef AFX_DATA #define AFX_DATA CLASS_DECL_ADSOFT class AdsoftDLL : public CSocket { public: BOOL CGetCheckErro(int nErroCode); }; #undef AFX_DATA #define AFX_DATA // Adsoft.cpp #include "afxdllx.h" #include "Adsoft.h" BOOL CGetCheckErro(int nErroCode) { if (nErroCode==0) return FALSE; return TRUE; } But to happen phenomenon don't to want

[David Crow]

I'm really not sure what you've provided here. Is this code that does not work? Are you wanting to export the AdsoftDLL class or just the CGetCheckErro() method? After a successful compile/link, have you verified with either Dependency Walker or Dumpbin that the DLL has the correct export table? Thangnc wrote: BOOL CGetCheckErro(int nErroCode) In adsoft.cpp, shouldn't this be:

BOOL AdsoftDLL::CGetCheckErro(int nErroCode)

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"One must learn from the bite of the fire to leave it alone." - Native American Proverb