using System.Runtime.InteropServices;

namespace EC.Util.CameraSDK;

public static class DaHuaOriSDK
{
    #region Lib Attr

    private const string LibDhNetSDK = @"./libs/dh-win64/dhnetsdk.dll";

    #endregion Lib Attr

    static DaHuaOriSDK()
    {
        GlobalInit();
    }

    #region Global

    public static bool InitSuccess { get; private set; }

    public static bool GlobalInit()
    {
        if (InitSuccess) return true;
        bool ret = CLIENT_InitEx(null, IntPtr.Zero, IntPtr.Zero);
        InitSuccess = ret;
        if (!ret) throw new Exception("DaHuaOriSDK global init failure.");
        return ret;
    }

    public static bool GlobalDestory()
    {
        if (!InitSuccess) return true;
        CLIENT_Cleanup();
        InitSuccess = false;
        return true;
    }

    #endregion Global

    #region SDK Const

    public const int PtzSpeedMin = 1;
    public const int PtzSpeedMax = 8;

    #endregion SDK Const

    #region SDK Enum

    /// <summary>
    /// login device mode enumeration
    /// 登陆设备方式枚举
    /// </summary>
    public enum EM_LOGIN_SPAC_CAP_TYPE
    {
        /// <summary>
        /// TCP login, default
        /// TCP登陆, 默认方式
        /// </summary>
        TCP = 0,

        /// <summary>
        /// No criteria login
        /// 无条件登陆
        /// </summary>
        ANY = 1,

        /// <summary>
        /// auto sign up login
        /// 主动注册的登入
        /// </summary>
        SERVER_CONN = 2,

        /// <summary>
        /// multicast login, default
        /// 组播登陆
        /// </summary>
        MULTICAST = 3,

        /// <summary>
        /// UDP method login
        /// UDP方式下的登入
        /// </summary>
        UDP = 4,

        /// <summary>
        /// only main connection login
        /// 只建主连接下的登入
        /// </summary>
        MAIN_CONN_ONLY = 6,

        /// <summary>
        /// SSL encryption login
        /// SSL加密方式登陆
        /// </summary>
        SSL = 7,

        /// <summary>
        /// login IVS box remote device
        /// 登录智能盒远程设备
        /// </summary>
        INTELLIGENT_BOX = 9,

        /// <summary>
        /// login device do not config
        /// 登录设备后不做取配置操作
        /// </summary>
        NO_CONFIG = 10,

        /// <summary>
        /// USB key device login
        /// 用U盾设备的登入
        /// </summary>
        U_LOGIN = 11,

        /// <summary>
        /// LDAP login
        /// LDAP方式登录
        /// </summary>
        LDAP = 12,

        /// <summary>
        /// AD login
        /// AD（ActiveDirectory）登录方式
        /// </summary>
        AD = 13,

        /// <summary>
        /// Radius  login
        /// Radius 登录方式
        /// </summary>
        RADIUS = 14,

        /// <summary>
        /// Socks5 login
        /// Socks5登陆方式
        /// </summary>
        SOCKET_5 = 15,

        /// <summary>
        /// cloud login
        /// 云登陆方式
        /// </summary>
        CLOUD = 16,

        /// <summary>
        /// dual authentication loin
        /// 二次鉴权登陆方式
        /// </summary>
        AUTH_TWICE = 17,

        /// <summary>
        /// TS stream client login
        /// TS码流客户端登陆方式
        /// </summary>
        TS = 18,

        /// <summary>
        /// web private login
        /// 为P2P登陆方式
        /// </summary>
        P2P = 19,

        /// <summary>
        /// mobile client login
        /// 手机客户端登陆
        /// </summary>
        MOBILE = 20,

        /// <summary>
        /// invalid login
        /// 无效的登陆方式
        /// </summary>
        INVALID = 21,
    }

    /// <summary>
    /// device type enumeration
    /// 设备类型枚举
    /// </summary>
    public enum EM_NET_DEVICE_TYPE
    {
        /// <summary>
        /// Unknow
        //  未知
        /// </summary>
        NET_PRODUCT_NONE = 0,

        /// <summary>
        /// Non real-time MACE
        /// 非实时MACE
        /// </summary>
        NET_DVR_NONREALTIME_MACE,

        /// <summary>
        /// Non real-time
        /// 非实时
        /// </summary>
        NET_DVR_NONREALTIME,

        /// <summary>
        /// Network video server
        /// 网络视频服务器
        /// </summary>
        NET_NVS_MPEG1,

        /// <summary>
        /// MPEG1 2-ch DVR
        /// MPEG1二路录像机
        /// </summary>
        NET_DVR_MPEG1_2,

        /// <summary>
        /// MPEG1 8-ch DVR
        /// MPEG1八路录像机
        /// </summary>
        NET_DVR_MPEG1_8,

        /// <summary>
        /// MPEG4 8-ch DVR
        /// MPEG4八路录像机
        /// </summary>
        NET_DVR_MPEG4_8,

        /// <summary>
        /// MPEG4 16-ch DVR
        /// MPEG4 十六路录像机
        /// </summary>
        NET_DVR_MPEG4_16,

        /// <summary>
        /// LB series DVR
        /// LB系列录像机
        /// </summary>
        NET_DVR_MPEG4_SX2,

        /// <summary>
        /// GB  series DVR
        /// GB系列录像机
        /// </summary>
        NET_DVR_MEPG4_ST2,

        /// <summary>
        /// HB  series DVR
        /// HB系列录像机
        /// </summary>
        NET_DVR_MEPG4_SH2,

        /// <summary>
        /// GBE  series DVR
        /// GBE系列录像机
        /// </summary>
        NET_DVR_MPEG4_GBE,

        /// <summary>
        /// II network video server
        /// II代网络视频服务器
        /// </summary>
        NET_DVR_MPEG4_NVSII,

        /// <summary>
        /// New standard configuration protocol
        /// 新标准配置协议
        /// </summary>
        NET_DVR_STD_NEW,

        /// <summary>
        /// DDNS server
        /// DDNS服务器
        /// </summary>
        NET_DVR_DDNS,

        /// <summary>
        /// ATM series
        /// ATM机
        /// </summary>
        NET_DVR_ATM,

        /// <summary>
        /// 2nd non real-time NB series DVR
        /// 二代非实时NB系列机器
        /// </summary>
        NET_NB_SERIAL,

        /// <summary>
        /// LN  series
        /// LN系列产品
        /// </summary>
        NET_LN_SERIAL,

        /// <summary>
        /// BAV series
        /// BAV系列产品
        /// </summary>
        NET_BAV_SERIAL,

        /// <summary>
        /// SDIP series
        /// SDIP系列产品
        /// </summary>
        NET_SDIP_SERIAL,

        /// <summary>
        /// IPC series
        /// IPC系列产品
        /// </summary>
        NET_IPC_SERIAL,

        /// <summary>
        /// NVS B series
        /// NVS B系列
        /// </summary>
        NET_NVS_B,

        /// <summary>
        /// NVS H series
        /// NVS H系列
        /// </summary>
        NET_NVS_C,

        /// <summary>
        /// NVS S series
        /// NVS S系列
        /// </summary>
        NET_NVS_S,

        /// <summary>
        /// NVS E series
        /// NVS E系列
        /// </summary>
        NET_NVS_E,

        /// <summary>
        /// Search device type from QueryDevState. it is in string format
        /// 从QueryDevState中查询设备类型,以字符串格式
        /// </summary>
        NET_DVR_NEW_PROTOCOL,

        /// <summary>
        /// NVD
        /// 解码器
        /// </summary>
        NET_NVD_SERIAL,

        /// <summary>
        /// N5
        /// N5
        /// </summary>
        NET_DVR_N5,

        /// <summary>
        /// HDVR
        /// 混合DVR
        /// </summary>
        NET_DVR_MIX_DVR,

        /// <summary>
        /// SVR series
        /// SVR系列
        /// </summary>
        NET_SVR_SERIAL,

        /// <summary>
        /// SVR-BS
        /// SVR-BS
        /// </summary>
        NET_SVR_BS,

        /// <summary>
        /// NVR series
        /// NVR系列
        /// </summary>
        NET_NVR_SERIAL,

        /// <summary>
        /// N51
        /// N51
        /// </summary>
        NET_DVR_N51,

        /// <summary>
        /// ITSE Intelligent Analysis Box
        /// ITSE 智能分析盒
        /// </summary>
        NET_ITSE_SERIAL,

        /// <summary>
        /// Intelligent traffic camera equipment
        /// 智能交通像机设备
        /// </summary>
        NET_ITC_SERIAL,

        /// <summary>
        /// radar speedometer HWS
        /// 雷达测速仪HWS
        /// </summary>
        NET_HWS_SERIAL,

        /// <summary>
        /// portable video record
        /// 便携式音视频录像机
        /// </summary>
        NET_PVR_SERIAL,

        /// <summary>
        /// IVS(intelligent video server series)
        /// IVS（智能视频服务器系列）
        /// </summary>
        NET_IVS_SERIAL,

        /// <summary>
        /// universal intelligent detect video server series
        /// 通用智能视频侦测服务器
        /// </summary>
        NET_IVS_B,

        /// <summary>
        /// face recognisation server
        /// 人脸识别服务器
        /// </summary>
        NET_IVS_F,

        /// <summary>
        /// video quality diagnosis server
        /// 视频质量诊断服务器
        /// </summary>
        NET_IVS_V,

        /// <summary>
        /// matrix
        /// 矩阵
        /// </summary>
        NET_MATRIX_SERIAL,

        /// <summary>
        /// N52
        /// N52
        /// </summary>
        NET_DVR_N52,

        /// <summary>
        /// N56
        /// N56
        /// </summary>
        NET_DVR_N56,

        /// <summary>
        /// ESS
        /// ESS
        /// </summary>
        NET_ESS_SERIAL,

        /// <summary>
        /// 人数统计服务器
        /// </summary>
        NET_IVS_PC,

        /// <summary>
        /// pc-nvr
        /// pc-nvr
        /// </summary>
        NET_PC_NVR,

        /// <summary>
        /// screen controller
        /// 大屏控制器
        /// </summary>
        NET_DSCON,

        /// <summary>
        /// network video storage server
        /// 网络视频存储服务器
        /// </summary>
        NET_EVS,

        /// <summary>
        /// an embedded intelligent video analysis system
        /// 嵌入式智能分析视频系统
        /// </summary>
        NET_EIVS,

        /// <summary>
        /// DVR-N6
        /// DVR-N6
        /// </summary>
        NET_DVR_N6,

        /// <summary>
        /// K-Lite Codec Pack
        /// 万能解码器
        /// </summary>
        NET_UDS,

        /// <summary>
        /// Bank alarm host
        /// 银行报警主机
        /// </summary>
        NET_AF6016,

        /// <summary>
        /// Video network alarm host
        /// 视频网络报警主机
        /// </summary>
        NET_AS5008,

        /// <summary>
        /// Network alarm host
        /// 网络报警主机
        /// </summary>
        NET_AH2008,

        /// <summary>
        /// Alarm host series
        /// 报警主机系列
        /// </summary>
        NET_A_SERIAL,

        /// <summary>
        /// Access control series of products
        /// 门禁系列产品
        /// </summary>
        NET_BSC_SERIAL,

        /// <summary>
        /// NVS series product
        /// NVS系列产品
        /// </summary>
        NET_NVS_SERIAL,

        /// <summary>
        /// VTO series product
        /// VTO系列产品
        /// </summary>
        NET_VTO_SERIAL,

        /// <summary>
        /// VTNC series product
        /// VTNC系列产品
        /// </summary>
        NET_VTNC_SERIAL,

        /// <summary>
        /// TPC series product, it is the thermal device
        /// TPC系列产品, 即热成像设备
        /// </summary>
        NET_TPC_SERIAL,

        /// <summary>
        /// ASM series product
        /// 无线中继设备
        /// </summary>
        NET_ASM_SERIAL,

        /// <summary>
        /// VTS series product
        /// 管理机
        /// </summary>
        NET_VTS_SERIAL,

        /// <summary>
        /// Alarm host-ARC2016C
        /// 报警主机ARC2016C
        /// </summary>
        NET_ARC2016C,

        /// <summary>
        /// ASA Attendance machine
        /// 考勤机
        /// </summary>
        NET_ASA,

        /// <summary>
        /// Industry terminal walkie-talkie
        /// 行业对讲终端
        /// </summary>
        NET_VTT_SERIAL,

        /// <summary>
        /// Alarm column
        /// 报警柱
        /// </summary>
        NET_VTA_SERIAL,

        /// <summary>
        /// SIP Server
        /// SIP服务器
        /// </summary>
        NET_VTNS_SERIAL,

        /// <summary>
        /// Indoor unit
        /// 室内机
        /// </summary>
        NET_VTH_SERIAL,
    }

    /// <summary>
    /// 查询设备信息参数
    /// </summary>
    public enum EM_DEVICE_STATE
    {
        /// <summary>
        /// Query device online state(return a DWORD value, 1-online, 0-offline)
        /// 查询设备的在线状态(返回一个DWORD, 1表示在线, 0表示断线)
        /// </summary>
        ONLINE = 0x0035,

        /// <summary>
        /// Query ptz state(struct DH_PTZ_LOCATION_INFO)
        /// 查询云台状态信息(对应结构体 DH_PTZ_LOCATION_INFO)
        /// </summary>
        PTZ_LOCATION = 0x0036,
    }

    /// <summary>
    /// PTZ control command enumeration
    /// 云台控制命令
    /// </summary>
    public enum EM_EXTPTZ_ControlType : int
    {
        /// <summary>
        /// Up
        /// 上
        /// </summary>
        UP_CONTROL = 0,

        /// <summary>
        /// Down
        /// 下
        /// </summary>
        DOWN_CONTROL,

        /// <summary>
        /// Left
        /// 左
        /// </summary>
        LEFT_CONTROL,

        /// <summary>
        /// Right
        /// 右
        /// </summary>
        RIGHT_CONTROL,

        /// <summary>
        /// +Zoom in
        /// 变倍+
        /// </summary>
        ZOOM_ADD_CONTROL,

        /// <summary>
        /// -Zoom out
        /// 变倍-
        /// </summary>
        ZOOM_DEC_CONTROL,

        /// <summary>
        /// +Focus
        /// 调焦+
        /// </summary>
        FOCUS_ADD_CONTROL,

        /// <summary>
        /// -Focus
        /// 调焦-
        /// </summary>
        FOCUS_DEC_CONTROL,

        /// <summary>
        /// + Aperture
        /// 光圈+
        /// </summary>
        APERTURE_ADD_CONTROL,

        /// <summary>
        /// -Aperture
        /// 光圈-
        /// </summary>
        APERTURE_DEC_CONTROL,

        /// <summary>
        /// Go to preset
        /// 转至预置点
        /// </summary>
        POINT_MOVE_CONTROL,

        /// <summary>
        /// Set
        /// 设置
        /// </summary>
        POINT_SET_CONTROL,

        /// <summary>
        /// Delete
        /// 删除
        /// </summary>
        POINT_DEL_CONTROL,

        /// <summary>
        /// Tour
        /// 点间巡航
        /// </summary>
        POINT_LOOP_CONTROL,

        /// <summary>
        /// Light and wiper
        /// 灯光雨刷
        /// </summary>
        LAMP_CONTROL,

        /// <summary>
        /// Upper left
        /// 左上
        /// </summary>
        LEFTTOP = 0x20,

        /// <summary>
        /// Upper right
        /// 右上
        /// </summary>
        RIGHTTOP,

        /// <summary>
        /// Down left
        /// 左下
        /// </summary>
        LEFTDOWN,

        /// <summary>
        /// Down right
        /// 右下
        /// </summary>
        RIGHTDOWN,

        /// <summary>
        ///  Add preset to tour	tour preset value
        /// 加入预置点到巡航 巡航线路 预置点值
        /// </summary>
        ADDTOLOOP,

        /// <summary>
        /// Delete preset in tour tour preset value
        /// 删除巡航中预置点 巡航线路 预置点值
        /// </summary>
        DELFROMLOOP,

        /// <summary>
        /// Delete tour tour
        /// 清除巡航 巡航线路
        /// </summary>
        CLOSELOOP,

        /// <summary>
        /// Begin pan rotation
        /// 开始水平旋转
        /// </summary>
        STARTPANCRUISE,

        /// <summary>
        /// Stop pan rotation
        /// 停止水平旋转
        /// </summary>
        STOPPANCRUISE,

        /// <summary>
        /// Set left limit
        /// 设置左边界
        /// </summary>
        SETLEFTBORDER,

        /// <summary>
        /// Set right limit
        /// 设置右边界
        /// </summary>
        SETRIGHTBORDER,

        /// <summary>
        /// Begin scanning
        /// 开始线扫
        /// </summary>
        STARTLINESCAN,

        /// <summary>
        /// Stop scanning
        /// 停止线扫
        /// </summary>
        CLOSELINESCAN,

        /// <summary>
        /// Start mode	mode line
        /// 设置模式开始    模式线路
        /// </summary>
        SETMODESTART,

        /// <summary>
        /// Stop mode	mode line
        /// 设置模式结束    模式线路
        /// </summary>
        SETMODESTOP,

        /// <summary>
        /// Enable mode	Mode line
        /// 运行模式    模式线路
        /// </summary>
        RUNMODE,

        /// <summary>
        /// Disable mode	Mode line
        /// 停止模式    模式线路
        /// </summary>
        STOPMODE,

        /// <summary>
        /// Delete mode	Mode line
        /// 清除模式    模式线路
        /// </summary>
        DELETEMODE,

        /// <summary>
        /// Flip
        /// 翻转命令
        /// </summary>
        REVERSECOMM,

        /// <summary>
        /// 3D position	X address(8192)	Y address(8192)	zoom(4)
        /// 快速定位 水平坐标(8192) 垂直坐标(8192) 变倍(4)
        /// </summary>
        FASTGOTO,

        /// <summary>
        /// auxiliary open	Auxiliary point(param4 corresponding struct PTZ_CONTROL_AUXILIARY,param1、param2、param3 is invalid,dwStop set to FALSE)
        /// 辅助开关开 辅助点(param4对应 PTZ_CONTROL_AUXILIARY,param1、param2、param3无效,dwStop设置为FALSE)
        /// </summary>
        AUXIOPEN,

        /// <summary>
        /// Auxiliary close	Auxiliary point(param4 corresponding struct PTZ_CONTROL_AUXILIARY,param1、param2、param3 is invalid,dwStop set to FALSE)
        /// 辅助开关关 辅助点(param4对应 PTZ_CONTROL_AUXILIARY,param1、param2、param3无效,dwStop设置为FALSE)
        /// </summary>
        AUXICLOSE,

        /// <summary>
        /// Open dome menu
        /// 打开球机菜单
        /// </summary>
        OPENMENU = 0x36,

        /// <summary>
        /// Close menu
        /// 关闭菜单
        /// </summary>
        CLOSEMENU,

        /// <summary>
        /// Confirm menu
        /// 菜单确定
        /// </summary>
        MENUOK,

        /// <summary>
        /// Cancel menu
        /// 菜单取消
        /// </summary>
        MENUCANCEL,

        /// <summary>
        /// menu up
        /// 菜单上
        /// </summary>
        MENUUP,

        /// <summary>
        /// menu down
        /// 菜单下
        /// </summary>
        MENUDOWN,

        /// <summary>
        /// menu left
        /// 菜单左
        /// </summary>
        MENULEFT,

        /// <summary>
        /// Menu right
        /// 菜单右
        /// </summary>
        MENURIGHT,

        /// <summary>
        /// Alarm activate PTZ parm1:Alarm input channel;parm2:Alarm activation type  1-preset 2-scan 3-tour;parm 3:activation value,such as preset value.
        /// 报警联动云台 parm1：报警输入通道；parm2：报警联动类型1-预置点2-线扫3-巡航；parm3：联动值,如预置点号
        /// </summary>
        ALARMHANDLE = 0x40,

        /// <summary>
        /// Matrix switch parm1:monitor number(video output number);parm2:video input number;parm3:matrix number
        /// 矩阵切换 parm1：监视器号(视频输出号)；parm2：视频输入号；parm3：矩阵号
        /// </summary>
        MATRIXSWITCH = 0x41,

        /// <summary>
        /// Light controller
        /// 灯光控制器
        /// </summary>
        LIGHTCONTROL,

        /// <summary>
        /// 3D accurately positioning parm1:Pan degree(0~3600); parm2: tilt coordinates(0~900); parm3:zoom(1~128)
        /// 三维精确定位 parm1：水平角度(0~3600)；parm2：垂直坐标(0~900)；parm3：变倍(1~128)
        /// </summary>
        EXACTGOTO,

        /// <summary>
        /// Reset  3D positioning as zero
        /// 三维定位重设零位
        /// </summary>
        RESETZERO,

        /// <summary>
        /// Absolute motion control command,param4 corresponding struct NET_PTZ_CONTROL_ABSOLUTELY
        /// 绝对移动控制命令,param4对应结构 NET_PTZ_CONTROL_ABSOLUTELY
        /// </summary>
        MOVE_ABSOLUTELY,

        /// <summary>
        /// Continuous motion control command,param4 corresponding struct NET_PTZ_CONTROL_CONTINUOUSLY
        /// 持续移动控制命令,param4对应结构 NET_PTZ_CONTROL_CONTINUOUSLY
        /// </summary>
        MOVE_CONTINUOUSLY,

        /// <summary>
        /// PTZ control command, at a certain speed to preset locu,parm4 corresponding struct NET_PTZ_CONTROL_GOTOPRESET
        /// 云台控制命令,以一定速度转到预置位点,parm4对应结构NET_PTZ_CONTROL_GOTOPRESET
        /// </summary>
        GOTOPRESET,

        /// <summary>
        /// Set to horizon(param4 corresponding struct NET_PTZ_VIEW_RANGE_INFO)
        /// 设置可视域(param4对应结构 NET_PTZ_VIEW_RANGE_INFO)
        /// </summary>
        SET_VIEW_RANGE = 0x49,

        /// <summary>
        /// Absolute focus(param4 corresponding struct NET_PTZ_FOCUS_ABSOLUTELY)
        /// 绝对聚焦(param4对应结构NET_PTZ_FOCUS_ABSOLUTELY)
        /// </summary>
        FOCUS_ABSOLUTELY = 0x4A,

        /// <summary>
        /// Level fan sweep(param4 corresponding NET_PTZ_CONTROL_SECTORSCAN,param1,param2,param3 is invalid)
        /// 水平扇扫(param4对应PTZ_CONTROL_SECTORSCAN,param1、param2、param3无效)
        /// </summary>
        HORSECTORSCAN = 0x4B,

        /// <summary>
        /// Vertical sweep fan(param4 corresponding NET_PTZ_CONTROL_SECTORSCAN,param1,param2,param3 is invalid)
        /// 垂直扇扫(param4对应PTZ_CONTROL_SECTORSCAN,param1、param2、param3无效)
        /// </summary>
        VERSECTORSCAN = 0x4C,

        /// <summary>
        /// Set absolute focus, focus on value, param1 for focal length, range: [0255], param2 as the focus, scope: [0255], param3, param4 is invalid
        /// 设定绝对焦距、聚焦值,param1为焦距,范围:[0,255],param2为聚焦,范围:[0,255],param3、param4无效
        /// </summary>
        SET_ABS_ZOOMFOCUS = 0x4D,

        /// <summary>
        /// Control fish eye PTZ,param4corresponding to structure NET_PTZ_CONTROL_SET_FISHEYE_EPTZ
        /// 控制鱼眼电子云台,param4对应结构 PTZ_CONTROL_SET_FISHEYE_EPTZ
        /// </summary>
        SET_FISHEYE_EPTZ = 0x4E,

        /// <summary>
        /// Track start control(param4 corresponding to structure  NET_PTZ_CONTROL_SET_TRACK_CONTROL,dwStop set as FALSE， param1、param2、param3 is invalid)
        /// 轨道机开始控制(param4对应结构体为 PTZ_CONTROL_SET_TRACK_CONTROL,dwStop传FALSE, param1、param2、param3无效)
        /// </summary>
        SET_TRACK_START = 0x4F,

        /// <summary>
        /// Track stop control (param4 corresponding to structure NET_PTZ_CONTROL_SET_TRACK_CONTROL,dwStop set as FALSE，param1、param2、param3  is invalid)
        /// 轨道机停止控制(param4对应结构体为 PTZ_CONTROL_SET_TRACK_CONTROL,dwStop传FALSE,param1、param2、param3无效)
        /// </summary>
        SET_TRACK_STOP = 0x50,

        /// <summary>
        /// Up + TELE param1=speed (1-8)
        /// 上 + TELE param1=速度(1-8),下同
        /// </summary>
        UP_TELE = 0x70,

        /// <summary>
        /// Down + TELE
        /// 下 + TELE
        /// </summary>
        DOWN_TELE,

        /// <summary>
        /// Left + TELE
        /// 左 + TELE
        /// </summary>
        LEFT_TELE,

        /// <summary>
        /// Right + TELE
        /// 右 + TELE
        /// </summary>
        RIGHT_TELE,

        /// <summary>
        /// Upper left + TELE
        /// 左上 + TELE
        /// </summary>
        LEFTUP_TELE,

        /// <summary>
        /// Down left + TELE
        /// 左下 + TELE
        /// </summary>
        LEFTDOWN_TELE,

        /// <summary>
        /// Upper right + TELE
        /// 右上 + TELE
        /// </summary>
        TIGHTUP_TELE,

        /// <summary>
        /// Down right + TELE
        /// 右下 + TELE
        /// </summary>
        RIGHTDOWN_TELE,

        /// <summary>
        /// Up + WIDE param1=speed (1-8)
        /// 上 + WIDE param1=速度(1-8),下同
        /// </summary>
        UP_WIDE,

        /// <summary>
        /// Down + WIDE
        /// 下 + WIDE
        /// </summary>
        DOWN_WIDE,

        /// <summary>
        /// Left + WIDE
        /// 左 + WIDE
        /// </summary>
        LEFT_WIDE,

        /// <summary>
        /// Right + WIDE
        /// 右 + WIDE
        /// </summary>
        RIGHT_WIDE,

        /// <summary>
        /// Upper left + WIDE
        /// 左上 + WIDE
        /// </summary>
        LEFTUP_WIDE,

        /// <summary>
        /// Down left+ WIDE
        /// 左下 + WIDE
        /// </summary>
        LEFTDOWN_WIDE,

        /// <summary>
        /// Upper right + WIDE
        /// 右上 + WIDE
        /// </summary>
        TIGHTUP_WIDE,

        /// <summary>
        /// Down right + WIDE
        /// 右下 + WIDE
        /// </summary>
        RIGHTDOWN_WIDE,

        /// <summary>
        /// Go to preset point and take a picture
        /// 至预置点并抓图
        /// </summary>
        GOTOPRESETSNAP = 0x80,

        /// <summary>
        /// Calibrate the PTZ direction (two-way calibration)
        /// 校准云台方向（双方向校准）
        /// </summary>
        DIRECTIONCALIBRATION = 0x82,

        /// <summary>
        /// Calibrate the PTZ direction (one-way calibration) param4 -> NET_IN_CALIBRATE_SINGLEDIRECTION
        /// 校准云台方向（单防线校准）, param4 -> NET_IN_CALIBRATE_SINGLEDIRECTION
        /// </summary>
        SINGLEDIRECTIONCALIBRATION = 0x83,

        /// <summary>
        /// Relative positioning of PTZ, param4 -> NET_IN_MOVERELATIVELY_INFO
        /// 云台相对定位, param4 -> NET_IN_MOVERELATIVELY_INFO
        /// </summary>
        MOVE_RELATIVELY = 0x84,

        /// <summary>
        /// Set direction for PTZ, param4 -> NET_IN_SET_DIRECTION_INFO
        /// 设置云台方向, param4 -> NET_IN_SET_DIRECTION_INFO
        /// </summary>
        SET_DIRECTION = 0x85,

        /// <summary>
        /// Precisely and absolutely movement control command, param4 -> NET_IN_PTZBASE_MOVEABSOLUTELY_INFO use CFG_CAP_CMD_PTZ command to get the capability of PTZ
        /// if CFG_PTZ_PROTOCOL_CAPS_INFO -> bSupportReal equals TRUE means this device supports this feature
        /// 精准绝对移动控制命令, param4 -> NET_IN_PTZBASE_MOVEABSOLUTELY_INFO（通过 CFG_CAP_CMD_PTZ 命令获取云台能力集( CFG_PTZ_PROTOCOL_CAPS_INFO )
        /// 若bSupportReal为TRUE则设备支持该操作）
        /// </summary>
        BASE_MOVE_ABSOLUTELY = 0x86,

        /// <summary>
        /// Continuously movement control command, param4 -> NET_IN_PTZBASE_MOVECONTINUOUSLY_INFO. use CFG_CAP_CMD_PTZ command to get the capability of PTZ
        /// if CFG_PTZ_PROTOCOL_CAPS_INFO -> stuMoveContinuously equals -> stuType.bSupportExtra equals TRUE means this device supports this feature
        /// 云台连续移动控制命令, param4 -> NET_IN_PTZBASE_MOVECONTINUOUSLY_INFO.  通过 CFG_CAP_CMD_PTZ 命令获取云台能力集
        /// 若 CFG_PTZ_PROTOCOL_CAPS_INFO 中 stuMoveContinuously 字段的  为 TRUE, 表示设备支持该操作
        /// </summary>
        BASE_MOVE_CONTINUOUSLY,

        /// <summary>
        /// Maximum command value
        /// 最大命令值
        /// </summary>
        TOTAL,
    }

    /// <summary>
    /// 预置点状态枚举
    /// </summary>
    public enum EM_DH_PTZ_PRESET_STATUS
    {
        UNKNOWN,        // 未知
        REACH,          // 预置点到达
        UNREACH,        // 预置点未到达
    }

    /// <summary>
    /// realplay type
    /// 监视类型
    /// </summary>
    public enum EM_RealPlayType
    {
        /// <summary>
        /// Real-time preview
        /// 实时预览
        /// </summary>
        Realplay = 0,

        /// <summary>
        /// Multiple-channel preview
        /// 多画面预览
        /// </summary>
        Multiplay,

        /// <summary>
        /// Real-time monitor-main stream. It is the same as EM_RealPlayType.Realplay
        /// 实时监视-主码流,等同于EM_RealPlayType.Realplay
        /// </summary>
        Realplay_0,

        /// <summary>
        /// Real-time monitor -- extra stream 1
        /// 实时监视-从码流1
        /// </summary>
        Realplay_1,

        /// <summary>
        /// Real-time monitor -- extra stream 2
        /// 实时监视-从码流2
        /// </summary>
        Realplay_2,

        /// <summary>
        /// Real-time monitor -- extra stream 3
        /// 实时监视-从码流3
        /// </summary>
        Realplay_3,

        /// <summary>
        /// Multiple-channel preview--1-window
        /// 多画面预览－1画面
        /// </summary>
        Multiplay_1,

        /// <summary>
        /// Multiple-channel preview--4-window
        /// 多画面预览－4画面
        /// </summary>
        Multiplay_4,

        /// <summary>
        /// Multiple-channel preview--8-window
        /// 多画面预览－8画面
        /// </summary>
        Multiplay_8,

        /// <summary>
        /// Multiple-channel preview--9-window
        /// 多画面预览－9画面
        /// </summary>
        Multiplay_9,

        /// <summary>
        /// Multiple-channel preview--16-window
        /// 多画面预览－16画面
        /// </summary>
        Multiplay_16,

        /// <summary>
        /// Multiple-channel preview--6-window
        /// 多画面预览－6画面
        /// </summary>
        Multiplay_6,

        /// <summary>
        /// Multiple-channel preview--12-window
        /// 多画面预览－12画面
        /// </summary>
        Multiplay_12,

        /// <summary>
        /// Multiple-channel preview--25-window
        /// 多画面预览－25画面
        /// </summary>
        Multiplay_25,

        /// <summary>
        /// Multiple-channel preview--36-window
        /// 多画面预览－36画面
        /// </summary>
        Multiplay_36,

        /// <summary>
        /// test stream
        /// 带宽测试码流
        /// </summary>
        Realplay_Test = 255,
    }

    #endregion SDK Enum

    #region SDK Struct

    /// <summary>
    /// CLIENT_LoginWithHighLevelSecurity 输入参数
    /// </summary>
    public struct NET_IN_LOGIN_WITH_HIGHLEVEL_SECURITY
    {
        public uint dwSize;// 结构体大小

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 64)]
        public string szIP; // IP

        public int nPort;              // 端口

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 64)]
        public string szUserName; // 用户名

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 64)]
        public string szPassword; // 密码

        public EM_LOGIN_SPAC_CAP_TYPE emSpecCap;           // 登录模式

        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4)]
        public byte[] byReserved; // 字节对齐

        public IntPtr pCapParam;            // 见 CLIENT_LoginEx 接口 pCapParam 与 nSpecCap 关系
    }

    /// <summary>
    /// device information structure
    /// 设备信息结构体
    /// </summary>
    public struct NET_DEVICEINFO_Ex
    {
        /// <summary>
        /// serial number
        /// 序列号
        /// </summary>
        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 48)]
        public string sSerialNumber;

        /// <summary>
        /// count of alarm input
        /// 报警输入个数
        /// </summary>
        public int nAlarmInPortNum;

        /// <summary>
        /// count of alarm output
        /// 报警输出个数
        /// </summary>
        public int nAlarmOutPortNum;

        /// <summary>
        /// number of disk
        /// 硬盘个数
        /// </summary>
        public int nDiskNum;

        /// <summary>
        /// device type, refer to EM_NET_DEVICE_TYPE
        /// 设备类型,见枚举NET_DEVICE_TYPE
        /// </summary>
        public EM_NET_DEVICE_TYPE nDVRType;

        /// <summary>
        /// number of channel
        /// 通道个数
        /// </summary>
        public int nChanNum;

        /// <summary>
        /// Online Timeout, Not Limited Access to 0, not 0 Minutes Limit Said
        /// 在线超时时间,为0表示不限制登陆,非0表示限制的分钟数
        /// </summary>
        public byte byLimitLoginTime;

        /// <summary>
        /// When login failed due to password error, notice user by this parameter.This parameter is invalid when remaining login times is zero
        /// 当登陆失败原因为密码错误时,通过此参数通知用户,剩余登陆次数,为0时表示此参数无效
        /// </summary>
        public byte byLeftLogTimes;

        /// <summary>
        /// keep bytes for aligned
        /// 保留字节,字节对齐
        /// </summary>
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 2)]
        public byte[] bReserved;

        /// <summary>
        /// when log in failed,the left time for users to unlock (seconds), -1 indicate the device haven't set the parameter
        /// 当登陆失败,用户解锁剩余时间（秒数）, -1表示设备未设置该参数
        /// </summary>
        public int nLockLeftTime;

        /// <summary>
        /// reserved
        /// 保留字节
        /// </summary>
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 24)]
        public byte[] Reserved;
    }

    /// <summary>
    /// CLIENT_LoginWithHighLevelSecurity 输出参数
    /// </summary>
    public struct NET_OUT_LOGIN_WITH_HIGHLEVEL_SECURITY
    {
        public uint dwSize;// 结构体大小
        public NET_DEVICEINFO_Ex stuDeviceInfo;        // 设备信息
        public int nError;             // 错误码，见 CLIENT_Login 接口错误码

        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 132)]
        public byte[] byReserved; // 保留字节
    }

    /// <summary>
    /// 云台定位中非归一化坐标和变倍
    /// </summary>
    public struct NET_PTZSPACE_UNNORMALIZED
    {
        public int nPosX;           // x坐标
        public int nPosY;           // y坐标
        public int nZoom;           // 放大倍率

        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 52)]
        public byte[] byReserved;   // 预留字节
    }

    /// <summary>
    /// 云台定位信息
    /// </summary>
    //云台定位信息
    public struct DH_PTZ_LOCATION_INFO
    {
        public int nChannelID;                  // 通道号
        public int nPTZPan;                     // 云台水平运动位置,有效范围：[0,3600]
        public int nPTZTilt;                    // 云台垂直运动位置,有效范围：[-1800,1800]
        public int nPTZZoom;                    // 云台光圈变动位置,有效范围：[0,128]
        public byte bState;                     // 云台运动状态, 0-未知 1-运动 2-空闲
        public byte bAction;                    // 云台动作,255-未知,0-预置点,1-线扫,2-巡航,3-巡迹,4-水平旋转,5-普通移动,6-巡迹录制,7-全景云台扫描,8-热度图

        // 9-精确定位,10-设备校正,11-智能配置，12-云台重启
        public byte bFocusState;                // 云台聚焦状态, 0-未知, 1-运动状态, 2-空闲

        public byte bEffectiveInTimeSection;    // 在时间段内预置点状态是否有效

        //如果当前上报的预置点是时间段内的预置点,则为1,其他情况为0
        public int nPtzActionID;                       // 巡航ID号

        public uint dwPresetID;                 // 云台所在预置点编号
        public float fFocusPosition;            // 聚焦位置
        public byte bZoomState;                 // 云台ZOOM状态,0-未知,1-ZOOM,2-空闲

        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
        public byte[] bReserved;                // 对齐

        public uint dwSequence;                 // 包序号,用于校验是否丢包
        public uint dwUTC;                      // 对应的UTC(1970-1-1 00:00:00)秒数。
        public EM_DH_PTZ_PRESET_STATUS emPresetStatus; // 预置点位置

        /// <summary>
        /// 保留字段
        /// </summary>
        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 248)]
        public int[] reserved;
    };

    #endregion SDK Struct

    #region Common Method

    /// <summary>
    /// network disconnection callback function original shape
    /// 断线回调函数
    /// </summary>
    /// <param name="lLoginID">user LoginID:Login's returns value 登陆ID</param>
    /// <param name="pchDVRIP">device IP 设备IP</param>
    /// <param name="nDVRPort">device prot 设备端口</param>
    /// <param name="dwUser">user data from Init function 用户数据</param>
    public delegate void fDisConnectCallBack(IntPtr lLoginID, IntPtr pchDVRIP, int nDVRPort, IntPtr dwUser);

    /// <summary>
    /// network re-connection callback function original shape
    /// 重连回调函数
    /// </summary>
    /// <param name="lLoginID">user LoginID:Login's returns value 登陆ID</param>
    /// <param name="pchDVRIP">device IP,string type 设备IP</param>
    /// <param name="nDVRPort">device prot 设备端口</param>
    /// <param name="dwUser">user data from SetAutoReconnect function 用户数据</param>
    public delegate void fHaveReConnectCallBack(IntPtr lLoginID, IntPtr pchDVRIP, int nDVRPort, IntPtr dwUser);

    [DllImport(LibDhNetSDK)]
    public static extern bool CLIENT_InitEx(fDisConnectCallBack? cbDisConnect, IntPtr dwUser, IntPtr lpInitParam);

    [DllImport(LibDhNetSDK)]
    public static extern void CLIENT_Cleanup();

    [DllImport(LibDhNetSDK)]
    public static extern int CLIENT_GetLastError();

    [DllImport(LibDhNetSDK)]
    public static extern IntPtr CLIENT_LoginWithHighLevelSecurity(ref NET_IN_LOGIN_WITH_HIGHLEVEL_SECURITY pstInParam, ref NET_OUT_LOGIN_WITH_HIGHLEVEL_SECURITY pstOutParam);

    [DllImport(LibDhNetSDK)]
    public static extern bool CLIENT_Logout(IntPtr lLoginID);

    [DllImport(LibDhNetSDK)]
    public static extern void CLIENT_SetAutoReconnect(fHaveReConnectCallBack cbAutoConnect, IntPtr dwUser);

    [DllImport(LibDhNetSDK)]
    public static extern bool CLIENT_QueryDevState(IntPtr lLoginID, int nType, IntPtr pBuf, int nBufLen, ref int pRetLen, int waittime);

    /// <summary>
    /// PTZ control
    /// PTZ控制接口
    /// </summary>
    /// <param name="lLoginID">user LoginID:Login's returns value 登陆ID，Login返回值</param>
    /// <param name="nChannelID">channel number 通道号</param>
    /// <param name="dwPTZCommand">PTZ control commands 控制命令</param>
    /// <param name="lParam1">Parameter1 details refer to EM_EXTPTZ_ControlType 控制命令的参数1</param>
    /// <param name="lParam2">Parameter2 details refer to EM_EXTPTZ_ControlType 控制命令的参数2</param>
    /// <param name="lParam3">Parameter3 details refer to EM_EXTPTZ_ControlType 控制命令的参数3</param>
    /// <param name="dwStop">stop or not, effective to PTZ eight-directions operation and lens operation. During other operation, this parameter should fill in false  是否停止</param>
    /// <param name="param4"><para>support PTZ control extensive command，support these commands: 控制命令的参数4</para>
    ///                      <para>EM_EXTPTZ_ControlType.MOVE_ABSOLUTELY:Absolute motion control commands，param4 corresponding struct NET_PTZ_CONTROL_ABSOLUTELY</para>
    ///                      <para>EM_EXTPTZ_ControlType.MOVE_CONTINUOUSLY:Continuous motion control commands，param4 corresponding struct NET_PTZ_CONTROL_CONTINUOUSLY</para>
    ///                      <para>EM_EXTPTZ_ControlType.GOTOPRESET:PTZ control command, at a certain speed to preset locus，parm4 corresponding struct NET_PTZ_CONTROL_GOTOPRESET</para>
    ///                      <para>EM_EXTPTZ_ControlType.SET_VIEW_RANGE:Set to horizon(param4 corresponding struct NET_PTZ_VIEW_RANGE_INFO</para>
    ///                      <para>EM_EXTPTZ_ControlType.FOCUS_ABSOLUTELY:Absolute focus(param4 corresponding struct NET_PTZ_FOCUS_ABSOLUTELY</para>
    ///                      <para>EM_EXTPTZ_ControlType.HORSECTORSCAN:Level fan sweep(param4 corresponding NET_PTZ_CONTROL_SECTORSCAN,param1、param2、param3 is invalid</para>
    ///                      <para>EM_EXTPTZ_ControlType.VERSECTORSCAN:Vertical sweep fan(param4 corresponding NET_PTZ_CONTROL_SECTORSCAN,param1、param2、param3 is invalid</para>
    ///                      <para>EM_EXTPTZ_ControlType.SET_FISHEYE_EPTZ:Control fish eye PTZ，param4corresponding to structure NET_PTZ_CONTROL_SET_FISHEYE_EPTZ</para>
    ///                      <para>EM_EXTPTZ_ControlType.SET_TRACK_START/SET_TRACK_STOP:param4 corresponding to structure NET_PTZ_CONTROL_SET_TRACK_CONTROL,dwStop set as FALSE，param1、param2、param3  is invalid</para></param>
    /// <returns>failed return false, successful return true 失败返回false 成功返回true</returns>
    [DllImport(LibDhNetSDK)]
    public static extern bool CLIENT_DHPTZControlEx2(IntPtr lLoginID, int nChannelID, uint dwPTZCommand, int lParam1, int lParam2, int lParam3, bool dwStop, IntPtr param4);

    /// <summary>
    /// start real-time monitor.support 32bit and 64bit
    /// 开始实时监视.支持32位和64位
    /// </summary>
    /// <param name="lLoginID">user LoginID:Login's returns value 登陆ID,Login返回值</param>
    /// <param name="nChannelID">real time monitor channel NO.(from 0). 通道号</param>
    /// <param name="hWnd">display window handle. When value is 0(IntPtr.Zero), data are not decoded or displayed 显示窗口句柄</param>
    /// <param name="rType">realplay type 监视类型</param>
    /// <returns>failed return 0, successful return the real time monitorID(real time monitor handle),as parameter of related function. 失败返回0，成功返回大于0的值</returns>
    [DllImport(LibDhNetSDK)]
    public static extern IntPtr CLIENT_RealPlayEx(IntPtr lLoginID, int nChannelID, IntPtr hWnd, EM_RealPlayType rType);

    /// <summary>
    /// stop real time monitoring
    /// 关闭实时监视
    /// </summary>
    /// <param name="lRealHandle">monitor handle StartRealPlay returns value 监视ID StartRealPlay返回值</param>
    /// <returns>failed return false, successful return true 失败返回false 成功返回true</returns>
    [DllImport(LibDhNetSDK)]
    public static extern bool CLIENT_StopRealPlayEx(IntPtr lRealHandle);

    #endregion Common Method
}