windows系统调用 线程创建

#include "windows.h"
#include "iostream"
using namespace std;

class CWorkerThread{
public:
    CWorkerThread(LPCTSTR szName):
      m_szName(szName),m_hThread(INVALID_HANDLE_VALUE){
      m_hThread=CreateThread(
          NULL,
          0,
          ThreadProc,
          reinterpret_cast<LPVOID>(this),
          0,
          NULL
          );
      }

      virtual ~CWorkerThread(){
        CloseHandle(m_hThread);
      }

      virtual void WaitForCompletion(){
        WaitForSingleObject(m_hThread,INFINITE);        
      }

protected:
    static DWORD WINAPI ThreadProc(LPVOID lpParam){
        CWorkerThread *pThis=reinterpret_cast<CWorkerThread *>( lpParam);
        pThis->DoStuff();
        return 0;
    }


    virtual void DoStuff(){
        for(int n=0;n<10;++n){
            printf("Thread %s ID:%d,count %d
",m_szName,GetCurrentThreadId(),n);
        }
    }

protected:
    HANDLE m_hThread;
    LPCTSTR m_szName;
};

void main(){
CWorkerThread wtA("A");
CWorkerThread wtB("B");

wtA.WaitForCompletion();
wtB.WaitForCompletion();

printf("Both threads complete.
");
getchar();
}