[转]WM/WINCE代码研读系列之Power Management(5)

下面是pNewPowerState->EnterState的具体内容
pNewPowerState->EnterState

{
     PmSetSystemPowerState_I(GetStateString(),0 ,0, TRUE);
     {
          if (((!_tcsicmp(szStateName,_T("suspend"))) || (dwStateHint==POWER_STATE_OFF)) &&(fInternal==TRUE))
          {
                   //将用户关闭系统的消息写入周日志里面
                   PMSQM_Set(PMSQM_DATAID_POWER_USER_SHUTDOWNS,1);
           }
 
           PlatformSetSystemPowerState
           {
                  
                    PmUpdateSystemPowerStatesIfChanged
                    RegReadSystemPowerState
 
                    //将PBT_TRANSITION消息发送给所有注册了相应电源管理通知事件的驱动
                    pbb.Message = PBT_TRANSITION;
                    pbb.Flags = pNewSystemPowerState->dwFlags;
                    pbb.Length = _tcslen(pNewSystemPowerState->pszName) + 1;