/*******************全局错误码 begin**********************/
        public const int NET_DVR_NOERROR = 0;//没有错误
        public const int NET_DVR_PASSWORD_ERROR = 1;//用户名密码错误
        public const int NET_DVR_NOENOUGHPRI = 2;//权限不足
        public const int NET_DVR_NOINIT = 3;//没有初始化
        public const int NET_DVR_CHANNEL_ERROR = 4;//通道号错误
        public const int NET_DVR_OVER_MAXLINK = 5;//连接到DVR的客户端个数超过最大
        public const int NET_DVR_VERSIONNOMATCH = 6;//版本不匹配
        public const int NET_DVR_NETWORK_FAIL_CONNECT = 7;//连接服务器失败
        public const int NET_DVR_NETWORK_SEND_ERROR = 8;//向服务器发送失败
        public const int NET_DVR_NETWORK_RECV_ERROR = 9;//从服务器接收数据失败
        public const int NET_DVR_NETWORK_RECV_TIMEOUT = 10;//从服务器接收数据超时
        public const int NET_DVR_NETWORK_ERRORDATA = 11;//传送的数据有误
        public const int NET_DVR_ORDER_ERROR = 12;//调用次序错误
        public const int NET_DVR_OPERNOPERMIT = 13;//无此权限
        public const int NET_DVR_COMMANDTIMEOUT = 14;//DVR命令执行超时
        public const int NET_DVR_ERRORSERIALPORT = 15;//串口号错误
        public const int NET_DVR_ERRORALARMPORT = 16;//报警端口错误
        public const int NET_DVR_PARAMETER_ERROR = 17;//参数错误
        public const int NET_DVR_CHAN_EXCEPTION = 18;//服务器通道处于错误状态
        public const int NET_DVR_NODISK = 19;//没有硬盘
        public const int NET_DVR_ERRORDISKNUM = 20;//硬盘号错误
        public const int NET_DVR_DISK_FULL = 21;//服务器硬盘满
        public const int NET_DVR_DISK_ERROR = 22;//服务器硬盘出错
        public const int NET_DVR_NOSUPPORT = 23;//服务器不支持
        public const int NET_DVR_BUSY = 24;//服务器忙
        public const int NET_DVR_MODIFY_FAIL = 25;//服务器修改不成功
        public const int NET_DVR_PASSWORD_FORMAT_ERROR = 26;//密码输入格式不正确
        public const int NET_DVR_DISK_FORMATING = 27;//硬盘正在格式化，不能启动操作
        public const int NET_DVR_DVRNORESOURCE = 28;//DVR资源不足
        public const int NET_DVR_DVROPRATEFAILED = 29;//DVR操作失败
        public const int NET_DVR_OPENHOSTSOUND_FAIL = 30;//打开PC声音失败
        public const int NET_DVR_DVRVOICEOPENED = 31;//服务器语音对讲被占用
        public const int NET_DVR_TIMEINPUTERROR = 32;//时间输入不正确
        public const int NET_DVR_NOSPECFILE = 33;//回放时服务器没有指定的文件
        public const int NET_DVR_CREATEFILE_ERROR = 34;//创建文件出错
        public const int NET_DVR_FILEOPENFAIL = 35;//打开文件出错
        public const int NET_DVR_OPERNOTFINISH = 36; //上次的操作还没有完成
        public const int NET_DVR_GETPLAYTIMEFAIL = 37;//获取当前播放的时间出错
        public const int NET_DVR_PLAYFAIL = 38;//播放出错
        public const int NET_DVR_FILEFORMAT_ERROR = 39;//文件格式不正确
        public const int NET_DVR_DIR_ERROR = 40;//路径错误
        public const int NET_DVR_ALLOC_RESOURCE_ERROR = 41;//资源分配错误
        public const int NET_DVR_AUDIO_MODE_ERROR = 42;//声卡模式错误
        public const int NET_DVR_NOENOUGH_BUF = 43;//缓冲区太小
        public const int NET_DVR_CREATESOCKET_ERROR = 44;//创建SOCKET出错
        public const int NET_DVR_SETSOCKET_ERROR = 45;//设置SOCKET出错
        public const int NET_DVR_MAX_NUM = 46;//个数达到最大
        public const int NET_DVR_USERNOTEXIST = 47;//用户不存在
        public const int NET_DVR_WRITEFLASHERROR = 48;//写FLASH出错
        public const int NET_DVR_UPGRADEFAIL = 49;//DVR升级失败
        public const int NET_DVR_CARDHAVEINIT = 50;//解码卡已经初始化过
        public const int NET_DVR_PLAYERFAILED = 51;//调用播放库中某个函数失败
        public const int NET_DVR_MAX_USERNUM = 52;//设备端用户数达到最大
        public const int NET_DVR_GETLOCALIPANDMACFAIL = 53;//获得客户端的IP地址或物理地址失败
        public const int NET_DVR_NOENCODEING = 54;//该通道没有编码
        public const int NET_DVR_IPMISMATCH = 55;//IP地址不匹配
        public const int NET_DVR_MACMISMATCH = 56;//MAC地址不匹配
        public const int NET_DVR_UPGRADELANGMISMATCH = 57;//升级文件语言不匹配
        public const int NET_DVR_MAX_PLAYERPORT = 58;//播放器路数达到最大
        public const int NET_DVR_NOSPACEBACKUP = 59;//备份设备中没有足够空间进行备份
        public const int NET_DVR_NODEVICEBACKUP = 60;//没有找到指定的备份设备
        public const int NET_DVR_PICTURE_BITS_ERROR = 61;//图像素位数不符，限24色
        public const int NET_DVR_PICTURE_DIMENSION_ERROR = 62;//图片高*宽超限， 限128*256
        public const int NET_DVR_PICTURE_SIZ_ERROR = 63;//图片大小超限，限100K
        public const int NET_DVR_LOADPLAYERSDKFAILED = 64;//载入当前目录下Player Sdk出错
        public const int NET_DVR_LOADPLAYERSDKPROC_ERROR = 65;//找不到Player Sdk中某个函数入口
        public const int NET_DVR_LOADDSSDKFAILED = 66;//载入当前目录下DSsdk出错
        public const int NET_DVR_LOADDSSDKPROC_ERROR = 67;//找不到DsSdk中某个函数入口
        public const int NET_DVR_DSSDK_ERROR = 68;//调用硬解码库DsSdk中某个函数失败
        public const int NET_DVR_VOICEMONOPOLIZE = 69;//声卡被独占
        public const int NET_DVR_JOINMULTICASTFAILED = 70;//加入多播组失败
        public const int NET_DVR_CREATEDIR_ERROR = 71;//建立日志文件目录失败
        public const int NET_DVR_BINDSOCKET_ERROR = 72;//绑定套接字失败
        public const int NET_DVR_SOCKETCLOSE_ERROR = 73;//socket连接中断，此错误通常是由于连接中断或目的地不可达
        public const int NET_DVR_USERID_ISUSING = 74;//注销时用户ID正在进行某操作
        public const int NET_DVR_SOCKETLISTEN_ERROR = 75;//监听失败
        public const int NET_DVR_PROGRAM_EXCEPTION = 76;//程序异常
        public const int NET_DVR_WRITEFILE_FAILED = 77;//写文件失败
        public const int NET_DVR_FORMAT_READONLY = 78;//禁止格式化只读硬盘
        public const int NET_DVR_WITHSAMEUSERNAME = 79;//用户配置结构中存在相同的用户名
        public const int NET_DVR_DEVICETYPE_ERROR = 80;//导入参数时设备型号不匹配
        public const int NET_DVR_LANGUAGE_ERROR = 81;//导入参数时语言不匹配
        public const int NET_DVR_PARAVERSION_ERROR = 82;//导入参数时软件版本不匹配
        public const int NET_DVR_IPCHAN_NOTALIVE = 83; //预览时外接IP通道不在线
        public const int NET_DVR_RTSP_SDK_ERROR = 84;//加载高清IPC通讯库StreamTransClient.dll失败
        public const int NET_DVR_CONVERT_SDK_ERROR = 85;//加载转码库失败
        public const int NET_DVR_IPC_COUNT_OVERFLOW = 86;//超出最大的ip接入通道数

        public const int NET_PLAYM4_NOERROR = 500;//no error
        public const int NET_PLAYM4_PARA_OVER = 501;//input parameter is invalid
        public const int NET_PLAYM4_ORDER_ERROR = 502;//The order of the function to be called is error
        public const int NET_PLAYM4_TIMER_ERROR = 503;//Create multimedia clock failed
        public const int NET_PLAYM4_DEC_VIDEO_ERROR = 504;//Decode video data failed
        public const int NET_PLAYM4_DEC_AUDIO_ERROR = 505;//Decode audio data failed
        public const int NET_PLAYM4_ALLOC_MEMORY_ERROR = 506;//Allocate memory failed
        public const int NET_PLAYM4_OPEN_FILE_ERROR = 507;//Open the file failed
        public const int NET_PLAYM4_CREATE_OBJ_ERROR = 508;//Create thread or event failed
        public const int NET_PLAYM4_CREATE_DDRAW_ERROR = 509;//Create DirectDraw object failed
        public const int NET_PLAYM4_CREATE_OFFSCREEN_ERROR = 510;//failed when creating off-screen surface
        public const int NET_PLAYM4_BUF_OVER = 511;//buffer is overflow
        public const int NET_PLAYM4_CREATE_SOUND_ERROR = 512;//failed when creating audio device
        public const int NET_PLAYM4_SET_VOLUME_ERROR = 513;//Set volume failed
        public const int NET_PLAYM4_SUPPORT_FILE_ONLY = 514;//The function only support play file
        public const int NET_PLAYM4_SUPPORT_STREAM_ONLY = 515;//The function only support play stream
        public const int NET_PLAYM4_SYS_NOT_SUPPORT = 516;//System not support
        public const int NET_PLAYM4_FILEHEADER_UNKNOWN = 517;//No file header
        public const int NET_PLAYM4_VERSION_INCORRECT = 518;//The version of decoder and encoder is not adapted
        public const int NET_PALYM4_INIT_DECODER_ERROR = 519;//Initialize decoder failed
        public const int NET_PLAYM4_CHECK_FILE_ERROR = 520;//The file data is unknown
        public const int NET_PLAYM4_INIT_TIMER_ERROR = 521;//Initialize multimedia clock failed
        public const int NET_PLAYM4_BLT_ERROR = 522;//Blt failed
        public const int NET_PLAYM4_UPDATE_ERROR = 523;//Update failed
        public const int NET_PLAYM4_OPEN_FILE_ERROR_MULTI = 524;//openfile error, streamtype is multi
        public const int NET_PLAYM4_OPEN_FILE_ERROR_VIDEO = 525;//openfile error, streamtype is video
        public const int NET_PLAYM4_JPEG_COMPRESS_ERROR = 526;//JPEG compress error
        public const int NET_PLAYM4_EXTRACT_NOT_SUPPORT = 527;//Don't support the version of this file
        public const int NET_PLAYM4_EXTRACT_DATA_ERROR = 528;//extract video data failed
        /*******************全局错误码 end**********************/