testdll.h

这是一本学习 window编程的很好的参考教材

// TestDLL header file.
#ifdef TESTDLL_EXPORTS
#define TESTDLL_API __declspec(dllexport)
#else
#define TESTDLL_API __declspec(dllimport)
#endif

TESTDLL_API LRESULT CALLBACK HookProc(int nCode, WPARAM wParam, LPARAM lParam);

TESTDLL_API void InstallHook();
TESTDLL_API void RemoveHook();