//global variables


    HANDLE g_hEvent = NULL;



    //local variables


    HANDLE hThread;


    DWORD dwThreadID;


    BOOL seteventStatus;



    //create auto-reset event


    g_hEvent = CreateEvent (NULL, // no security attributes


     FALSE, //auto-reset event


     FALSE, //initial state non-signaled


     NULL); //name of the event object


    If (g_hEvent)


     //print error message


     //exit (-1)


     //create child threads


    for (i=0; i<3; i++)


    {


     hThread=CreateThread(NULL,0,foo,(LPVOID)i,0,&dwThreadID);




     if (hThread)


     printf ("Thread launched successfully\n");


     else


     //print error message and exit (-1)


    }


    Sleep (1000);



    //signal for auto reset event


    seteventStatus = SetEvent (g_hEvent);


    if (!seteventStatus)


     //print error message for failing in calling set event and

    exit (-1)



    //wait for child threads to exit


    DWORD dwCThd = WaitForMultipleObjects (3, //count of

    objects


     hThread, //thread handle


     TRUE, //wait for all


     INFINITE); //time out interval


    If (dwCThd != WAIT_OBJECT_0)


     //Print error message and exit (-1)



    //close handles


    CloseHandle (hEvent);


    //close child thread handles


    for (i=0; i<3; i++)


     CloseHandle (hThread[i]);



    //end of main function



    /************


    * function foo


    *************/



    DWORD WINAPI foo (LPVOID num)


    {


     for( j = 0; j<3; j++)


     {


     //wait for single object


     DWORD dwRes = WaitForSingleObject (hEvent, INFINITE);


     If (dwRes == WAIT_OBJECT_0)


     //print wait for set event succeeded


     else


     //print error


     // do something


     }


    return 0;


    }