Re: Exporting static member functions

From:
"Mark Salsbery [MVP]" <MarkSalsbery[MVP]@newsgroup.nospam>
Newsgroups:
microsoft.public.vc.language
Date:
Mon, 3 Mar 2008 17:21:16 -0800
Message-ID:
<2A5DA176-F141-4CE0-8B07-504FA99750AD@microsoft.com>
Other than the fact that the members are private in your example, it works
for me.

Have you linked with the import library created by the creation of the dll
with the static methods?

Mark

--
Mark Salsbery
Microsoft MVP - Visual C++

<carichardson3306@gmail.com> wrote in message
news:622dcf34-e960-4203-b3f0-ea88b907fe16@e25g2000prg.googlegroups.com...

I've succcessfully created a DLL full of classes that I've exported to
use in another DLL. But I have a class that full of static member
functions and the function names arent resolving

When I try to create a new DLL, importing the class definitions, I get
unresolved external errors, but only for the static member functions.
Why is that?

Shouldnt the class be imported when its declared?

Below is the class definitions

devlibrary.h - Included in my stdafx.h for both DLLs
#define DEV_DLL_EXPORT __declspec ( dllexport )
#define DEV_DLL_IMPORT __declspec ( dllimport )

#ifdef _DEVLIBRARY_DLL
#define DEVLIBRARY_CLASS DEV_DLL_EXPORT
#else
#define DEVLIBRARY_CLASS DEV_DLL_IMPORT
#endif

cpstinterface.h
class DEVLIBRARY_CLASS CPSTDriverInterface
{
static short GetCnlVarsCount();
static CCnlVar *GetAllCnlVar(short var_rank);
static CCnlVar *GetAllCnlVar(char *szProtVarName);
}

main.cpp
#include "cpstdriverinterface.h"
{
...
dwNumOfVars = CPSTDriverInterface::GetCnlVarsCount();
...
}

Error

error LNK2001: unresolved external symbol "__declspec(dllimport)
public: static short __stdcall
CPSTDriverInterface::GetCnlVarsCount(void)" (__imp_?
GetCnlVarsCount@CPSTDriverInterface@@SGFXZ)

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