[Dev-C++] Couldn`t link MinGW DLL to MSVC program

[Dmitry S. <si...@si...>]

Hello dev-cpp-users.

I have the following source files to build DLL with Dev-Cpp


// dll.h
#ifndef _DLL_H_
#define _DLL_H_

#if BUILDING_DLL
# define DLLIMPORT __declspec (dllexport)
#else /* Not BUILDING_DLL */
# define DLLIMPORT __declspec (dllimport)
#endif /* Not BUILDING_DLL */

class DLLIMPORT MyClass
{
  public:
    MyClass();
    virtual ~MyClass(void);
};
#endif /* _DLL_H_ */


// dllmain.cpp
#include "dll.h"
#include <windows.h>

MyClass::MyClass()
{
    MessageBox( NULL, "MyClass construccted!!!", "test", 0 );
}
MyClass::~MyClass()
{
}
BOOL APIENTRY DllMain (HINSTANCE hInst     /* Library instance handle. */ ,
                       DWORD reason        /* Reason this function is being called. */ ,
                       LPVOID reserved     /* Not used. */ )
{
    switch (reason)
    {
      case DLL_PROCESS_ATTACH:
        break;

      case DLL_PROCESS_DETACH:
        break;

      case DLL_THREAD_ATTACH:
        break;

      case DLL_THREAD_DETACH:
        break;
    }

    /* Returns TRUE on success, FALSE on failure */
    return TRUE;
}

This is standard DLL project of Dev-Cpp with MessageBox function in
MyClass constructor

I build DLL with Dev-Cpp and then build .LIB file by LIB.exe from the
MSVC installation.

lib.exe /machine:i386 /def:libhellodll.def

Then I create the following code in MSVC
// testdll.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "dll.h"

int _tmain(int argc, _TCHAR* argv[])
{
        MyClass hello;
        return 0;
}

I also add libhellodll.lib to MSVC project
But when my testdll is linking I got the following errors

testdll2 error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall MyClass::MyClass(void)" (__imp_??0MyClass@@QAE@XZ) referenced in function _main
testdll2 error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __thiscall MyClass::~MyClass(void)" (__imp_??1MyClass@@UAE@XZ) referenced in function _main
testdll2 fatal error LNK1120: 2 unresolved externals


Then I tried to use dlltool from MinGW
dlltool.exe -d libhellodll.def --dllname hellodll.dll --output-lib libhellodll.lib

But I`ve got the same error
I also tried to use dlltool.exe with -U and -k flags, I`ve got the
same errors :(

Can anybody help me?
Excuse me for my poor english

-- 
Dmitry