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HOOKPROC lpfn, // address of hook procedure ¹³×Óº­ÊýµÄÏêϸµØÖ·

HINSTANCE hMod, // handle of application instance °üÀ¨¹³×Óº­Êý¿ØÖÆÄ£¿éµÄ·µ»ØÖµ

Dword dwThreadId // identity of thread to install hook for Òª°²Ñb¹³×ӵĽø³ÌµÄPID

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