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将下面的代码工作,如果安全数组数要返回为零?我应该做别的吗?安全数组 - 设置数量为零
HRESULT GetAlarms(FAULT_TYPE eAlarmType, long alarmLevel, VARIANT* pvarAlamLst)
{
pvarAlamLst->vt = VT_ARRAY |VT_VARIANT;
pvarAlamLst->parray = NULL;
return S_OK;
}