'''The state of an event object remains nonsignaled until it is explicitly set to signaled by the SetEvent or PulseEvent function. This nonsignaled state blocks the execution of any threads that have specified the event object in a call to one of the wait functions.

    static extern bool PulseEvent(IntPtr hEvent);

        PulseEvent( _Handle );

static extern bool PulseEvent(IntPtr hEvent);

        //TIME_CALLBACK_EVENT_PULSE = 0x0020  /* callback is event - use PulseEvent */