c++ thread event

HANDLE m_hThread; HANDLE m_hQuitEvent; static unsigned __stdcall ProcessData (LPVOID pParam); m_hQuitEvent = CreateEvent( NULL,TRUE,FALSE,NULL ); m_hThread = (HANDLE)_beginthreadex(NULL, // Security 0, // Stack size - use default ProcessData, // Thread fn entry point (void*) this, 0, // Init flag NULL); SetEvent( m_hQuitEvent ); unsigned __stdcall CQyPostInfoCtrl::ProcessData(LPVOID pParam) { if (pCtrl == NULL) { return FALSE; } while(TRUE) { DWORD dwWaitResult = WaitForSingleObject(pCtrl->m_hQuitEvent,1000); switch (dwWaitResult) { case WAIT_OBJECT_0: return 1; case WAIT_TIMEOUT: break; } } }