DLL'S??

I want to know how can i call a function from a c++ dll from VC++or VB,how can i call MyFunction() in this case; Can someone explain or suggest some links covering this topics.

Code:

---

#include "stdafx.h"

MyFunction()
{
Do something
}

BOOL APIENTRY DllMain(HANDLE hModule, DWORD  dwReasonForCall, LPVOID lpReserved) {
    switch(dwReasonForCall) {
                case DLL_PROCESS_ATTACH: {
                        break;
                }
                case DLL_PROCESS_DETACH: {
                        break;
                }
    }
    return TRUE;
}

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I'll send you an example project showing how to use DLLs in C++.