#include "pch.h" #include BOOL APIENTRY DllMain( HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved ) { switch (ul_reason_for_call) { case DLL_PROCESS_ATTACH: case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: case DLL_PROCESS_DETACH: break; } return TRUE; } Use code with caution. Key Considerations The use of __declspec(dllexport) is crucial.
This file defines the interface for applications using the DLL. Dll2.dll
#include "pch.h" // Remove if not using precompiled headers #include "Dll2.h" #include // Initialize DLL_EXPORTS symbol in project properties #define DLL2_EXPORTS // Implementation of the exported function extern "C" DLL2_API int AddNumbers(int a, int b) { return a + b; } // Implementation of the exported class Dll2Class::Dll2Class(void) {} int Dll2Class::MultiplyNumbers(int a, int b) { return a * b; } Use code with caution. 3. dllmain.cpp (DLL Entry Point) This is standard Windows code for initializing the DLL. #include "pch