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Export a generic Class from a DLL - linker error

SKC
Hi!
I want to export a generic Class from a DLL.

I Created two MFC shared dlls. I want to use a class declared in 2nd DLL
from 1st DLL.
1st DLL is created using mfc wizard as MFC shared dll.
Added a class:
class CTestDll2
{
public:
CTestDll();
virtual ~CTestDll();

};

2nd DLL:
Created using mfc wizard as MFC shared dll. I included the .lib file from
1st DLL in to my 2nd DLL at LINK\INPUT section of the project settings.

I created the instance of the class 'CTestDll2' in 2nd dll.

When I compile, I am getting error (LNK2001: unresolved external symbol
"public:) for the class 'CTestDll2'.

If I add AFX_EXT_CLASS macro to the class, no linker errors.

class AFX_EXT_CLASS CTestDll2
{
public:
CTestDll();
virtual ~CTestDll();

};

Is it needs to export the class even linking statically?
Is there any way to use the class with qualifying AFX_EXT_CLASS?

Test in .net 2003 and VC++6.0

Thanks in advance.

Regards,
Suresh
Jul 21 '05 #1
0 1044

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