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传感器信息查询条件结构体。
struct{
DWORD dwSize;
BYTE byQueryType;
BYTE byDeviceType;
BYTE byDeviceID;
BYTE byRes1;
NET_DVR_HISTORICAL_QUERY_PARAM struHistoricalQueryParam;
BYTE byRes[64];
}NET_DVR_SENSOR_COND, *LPNET_DVR_SENSOR_COND;