Windows system call scheduling priority

1#include"iostream"2#include"windows.h"3 using namespacestd;4 5 classcworkerthread{6  Public:7 CWorkerThread (LPCTSTR m_szname): M_szname (M_szname), M_hthread (INVALID_HANDLE_VALUE) {8M_hthread=CreateThread (9 NULL,Ten             0, One ThreadProc, AReinterpret_cast<lpvoid> ( This), -             0, - NULL the             ); -     } -  -     Virtual~CWorkerThread () {CloseHandle (m_hthread);} +  -     Virtual voidwaitforcompletion () { + WaitForSingleObject (m_hthread,infinite); A     } at  -     Virtual voidSetPriority (intnpriority) { - setthreadpriority (m_hthread,npriority);  -     } -  -     Virtual voidSuspend () { in SuspendThread (m_hthread); -     } to  +     Virtual voidResume () { - ResumeThread (m_hthread); the     } *  $ protected:Panax Notoginseng     StaticDWORD WINAPI ThreadProc (lpvoid lpparam) { -CWorkerThread *pthis= theReinterpret_cast<cworkerthread*>(Lpparam); +  APthis->Dostuff (); the         return(0); +     } -  $     Virtual voidDostuff () { $          for(intn=0;n< -; n++){ -printf"Thread%s Id:%d,count%d\n", M_szname,getcurrentthreadid (), n); -         } the     } - Wuyi protected: the HANDLE M_hthread; - LPCTSTR M_szname; Wu }; -  About voidMain () { $      -CWorkerThread WtB ("B"); -CWorkerThread WtA ("A"); - wta.setpriority (thread_priority_lowest); A  +  the wta.waitforcompletion (); - wtb.waitforcompletion (); $  thecout<<"Both threads complete."<<Endl; the  the GetChar (); the}