海康相机通过透明通道控制串口收发数据

天天代码码天天2025-10-31 17:04

效

目录

效果

代码

果

代码

using System;

using System.Runtime.InteropServices;

using System.Windows.Forms;

using static PreviewDemo.CHCNetSDK;

namespace PreviewDemo

{

public partial class frmTest : Form

{

public frmTest()

{

InitializeComponent();

}

private uint iLastErr = 0;

private Int32 m_lUserID = -1;

private bool m_bInitSDK = false;

private bool m_bSend = false;

private bool m_bRecord = false;

private bool m_bTalk = false;

private Int32 m_lRealHandle = -1;

private int lVoiceComHandle = -1;

private string str;

string Protocol = "RS485";

CHCNetSDK.REALDATACALLBACK RealData = null;

CHCNetSDK.LOGINRESULTCALLBACK LoginCallBack = null;

public CHCNetSDK.NET_DVR_PTZPOS m_struPtzCfg;

public CHCNetSDK.NET_DVR_USER_LOGIN_INFO struLogInfo;

public CHCNetSDK.NET_DVR_DEVICEINFO_V40 DeviceInfo;

private void frmLight_Load(object sender, EventArgs e)

{

m_bInitSDK = CHCNetSDK.NET_DVR_Init();

if (m_bInitSDK == false)

{

MessageBox.Show("NET_DVR_Init error!");

return;

}

else

{

//保存SDK日志 To save the SDK log

CHCNetSDK.NET_DVR_SetLogToFile(3, "C:\\SdkLog\\", true);

}

}

private void btnLogin_Click(object sender, EventArgs e)

{

if (textBoxIP.Text == "" || textBoxPort.Text == "" ||

textBoxUserName.Text == "" || textBoxPassword.Text == "")

{

MessageBox.Show("Please input IP, Port, User name and Password!");

return;

}

if (m_lUserID < 0)

{

struLogInfo = new CHCNetSDK.NET_DVR_USER_LOGIN_INFO();

//设备IP地址或者域名

byte[] byIP = System.Text.Encoding.Default.GetBytes(textBoxIP.Text);

struLogInfo.sDeviceAddress = new byte[129];

byIP.CopyTo(struLogInfo.sDeviceAddress, 0);

//设备用户名

byte[] byUserName = System.Text.Encoding.Default.GetBytes(textBoxUserName.Text);

struLogInfo.sUserName = new byte[64];

byUserName.CopyTo(struLogInfo.sUserName, 0);

//设备密码

byte[] byPassword = System.Text.Encoding.Default.GetBytes(textBoxPassword.Text);

struLogInfo.sPassword = new byte[64];

byPassword.CopyTo(struLogInfo.sPassword, 0);

struLogInfo.wPort = ushort.Parse(textBoxPort.Text);//设备服务端口号

if (LoginCallBack == null)

{

LoginCallBack = new CHCNetSDK.LOGINRESULTCALLBACK(cbLoginCallBack);//注册回调函数

}

struLogInfo.cbLoginResult = LoginCallBack;

struLogInfo.bUseAsynLogin = false; //是否异步登录：0- 否，1- 是

DeviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V40();

//登录设备 Login the device

m_lUserID = CHCNetSDK.NET_DVR_Login_V40(ref struLogInfo, ref DeviceInfo);

if (m_lUserID < 0)

{

iLastErr = CHCNetSDK.NET_DVR_GetLastError();

str = "NET_DVR_Login_V40 failed, error code= " + iLastErr; //登录失败，输出错误号

MessageBox.Show(str);

return;

}

else

{

//登录成功

MessageBox.Show("Login Success!");

btnLogin.Text = "Logout";

}

}

else

{

//注销登录 Logout the device

if (m_lRealHandle >= 0)

{

MessageBox.Show("Please stop live view firstly");

return;

}

if (!CHCNetSDK.NET_DVR_Logout(m_lUserID))

{

iLastErr = CHCNetSDK.NET_DVR_GetLastError();

str = "NET_DVR_Logout failed, error code= " + iLastErr;

MessageBox.Show(str);

return;

}

m_lUserID = -1;

btnLogin.Text = "Login";

}

return;

}

public void cbLoginCallBack(int lUserID, int dwResult, IntPtr lpDeviceInfo, IntPtr pUser)

{

string strLoginCallBack = "登录设备，lUserID：" + lUserID + "，dwResult：" + dwResult;

}

public void SerialDataCallBack(int lSerialHandle, string pRecvDataBuffer, uint dwBufSize, uint dwUser)

{

this.Invoke(new Action(() =>

{

byte[] bytes = System.Text.Encoding.Default.GetBytes(pRecvDataBuffer);

string hexString = BitConverter.ToString(bytes).Replace("-", " ");

rtxtRecv.Text = "收到数据：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "-->" + hexString;

}));

}

private void btnSend_Click(object sender, EventArgs e)

{

if (m_lUserID == -1)

{

MessageBox.Show("请先登录！");

return;

}

int iSelSerialIndex = 2; // 1:232串口；2:485串口

int lSerialChan = 1; // 使用485时该值有效，从1开始；232时设置为0

int brightness = 0;

if (Protocol == "RS232")

{

iSelSerialIndex = 1;

lSerialChan = 0;

#region 设置232为透明通道模式（使用232透明通道时调用，485不需要）

uint dwReturned = 0;

NET_DVR_RS232CFG_V30 struRS232Cfg = new NET_DVR_RS232CFG_V30();

// 分配非托管内存

IntPtr ptrRS232Cfg = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(NET_DVR_RS232CFG_V30)));

Marshal.StructureToPtr(struRS232Cfg, ptrRS232Cfg, false);

if (!CHCNetSDK.NET_DVR_GetDVRConfig(m_lUserID, CHCNetSDK.NET_DVR_GET_RS232CFG_V30, 0,

ptrRS232Cfg, (uint)Marshal.SizeOf(typeof(NET_DVR_RS232CFG_V30)), ref dwReturned))

{

MessageBox.Show($"NET_DVR_GET_RS232CFG_V30 错误: {CHCNetSDK.NET_DVR_GetLastError()}");

return;

}

// 将非托管内存转换为结构体

struRS232Cfg = (NET_DVR_RS232CFG_V30)Marshal.PtrToStructure(ptrRS232Cfg, typeof(NET_DVR_RS232CFG_V30));

struRS232Cfg.struRs232.dwWorkMode = 2; // 设置232为透明通道模式；0：窄带传输，1：控制台，2：透明通道

// 将结构体转换回非托管内存

Marshal.StructureToPtr(struRS232Cfg, ptrRS232Cfg, false);

if (!CHCNetSDK.NET_DVR_SetDVRConfig(m_lUserID, CHCNetSDK.NET_DVR_SET_RS232CFG_V30, 0,

ptrRS232Cfg, (uint)Marshal.SizeOf(typeof(NET_DVR_RS232CFG_V30))))

{

MessageBox.Show($"NET_DVR_SET_RS232CFG_V30 错误: {CHCNetSDK.NET_DVR_GetLastError()}");

return;

}

#endregion

}

// 创建回调委托

CHCNetSDK.SERIALDATACALLBACK callback = new CHCNetSDK.SERIALDATACALLBACK(SerialDataCallBack);

// 设置回调函数获取透传数据

m_bSend = CHCNetSDK.NET_DVR_SerialStart(m_lUserID, iSelSerialIndex, callback, (uint)m_lUserID);

if (!m_bSend)

{

MessageBox.Show($"NET_DVR_SerialStart 错误: {CHCNetSDK.NET_DVR_GetLastError()}");

return;

}

// 通过透明通道发送数据

lSerialChan = 1;

byte[] szSendBuf = { 0x01, 0x02, 0x03, 0x04 };

string hexString = BitConverter.ToString(szSendBuf).Replace("-", " ");

rtxtSend.Text = "发送数据：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "-->" + hexString;

if (!CHCNetSDK.NET_DVR_SerialSend(m_lUserID, lSerialChan, szSendBuf, (uint)szSendBuf.Length))

{

MessageBox.Show($"NET_DVR_SerialSend 错误: {CHCNetSDK.NET_DVR_GetLastError()}");

return;

}

else

{

MessageBox.Show("发送成功！");

}

}

private void button2_Click(object sender, EventArgs e)

{

rtxtRecv.Text = "";

}

}

}

复制代码 
using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using static PreviewDemo.CHCNetSDK;

namespace PreviewDemo
{
    public partial class frmTest : Form
    {
        public frmTest()
        {
            InitializeComponent();
        }

        private uint iLastErr = 0;
        private Int32 m_lUserID = -1;
        private bool m_bInitSDK = false;
        private bool m_bSend = false;
        private bool m_bRecord = false;
        private bool m_bTalk = false;
        private Int32 m_lRealHandle = -1;
        private int lVoiceComHandle = -1;
        private string str;

        string Protocol = "RS485";

        CHCNetSDK.REALDATACALLBACK RealData = null;
        CHCNetSDK.LOGINRESULTCALLBACK LoginCallBack = null;
        public CHCNetSDK.NET_DVR_PTZPOS m_struPtzCfg;
        public CHCNetSDK.NET_DVR_USER_LOGIN_INFO struLogInfo;
        public CHCNetSDK.NET_DVR_DEVICEINFO_V40 DeviceInfo;

        private void frmLight_Load(object sender, EventArgs e)
        {
            m_bInitSDK = CHCNetSDK.NET_DVR_Init();
            if (m_bInitSDK == false)
            {
                MessageBox.Show("NET_DVR_Init error!");
                return;
            }
            else
            {
                //保存SDK日志 To save the SDK log
                CHCNetSDK.NET_DVR_SetLogToFile(3, "C:\\SdkLog\\", true);
            }
        }

        private void btnLogin_Click(object sender, EventArgs e)
        {
            if (textBoxIP.Text == "" || textBoxPort.Text == "" ||
                textBoxUserName.Text == "" || textBoxPassword.Text == "")
            {
                MessageBox.Show("Please input IP, Port, User name and Password!");
                return;
            }
            if (m_lUserID < 0)
            {

                struLogInfo = new CHCNetSDK.NET_DVR_USER_LOGIN_INFO();

                //设备IP地址或者域名
                byte[] byIP = System.Text.Encoding.Default.GetBytes(textBoxIP.Text);
                struLogInfo.sDeviceAddress = new byte[129];
                byIP.CopyTo(struLogInfo.sDeviceAddress, 0);

                //设备用户名
                byte[] byUserName = System.Text.Encoding.Default.GetBytes(textBoxUserName.Text);
                struLogInfo.sUserName = new byte[64];
                byUserName.CopyTo(struLogInfo.sUserName, 0);

                //设备密码
                byte[] byPassword = System.Text.Encoding.Default.GetBytes(textBoxPassword.Text);
                struLogInfo.sPassword = new byte[64];
                byPassword.CopyTo(struLogInfo.sPassword, 0);

                struLogInfo.wPort = ushort.Parse(textBoxPort.Text);//设备服务端口号

                if (LoginCallBack == null)
                {
                    LoginCallBack = new CHCNetSDK.LOGINRESULTCALLBACK(cbLoginCallBack);//注册回调函数                    
                }
                struLogInfo.cbLoginResult = LoginCallBack;
                struLogInfo.bUseAsynLogin = false; //是否异步登录：0- 否，1- 是 

                DeviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V40();

                //登录设备 Login the device
                m_lUserID = CHCNetSDK.NET_DVR_Login_V40(ref struLogInfo, ref DeviceInfo);
                if (m_lUserID < 0)
                {
                    iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                    str = "NET_DVR_Login_V40 failed, error code= " + iLastErr; //登录失败，输出错误号
                    MessageBox.Show(str);
                    return;
                }
                else
                {
                    //登录成功
                    MessageBox.Show("Login Success!");
                    btnLogin.Text = "Logout";
                }

            }
            else
            {
                //注销登录 Logout the device
                if (m_lRealHandle >= 0)
                {
                    MessageBox.Show("Please stop live view firstly");
                    return;
                }

                if (!CHCNetSDK.NET_DVR_Logout(m_lUserID))
                {
                    iLastErr = CHCNetSDK.NET_DVR_GetLastError();
                    str = "NET_DVR_Logout failed, error code= " + iLastErr;
                    MessageBox.Show(str);
                    return;
                }
                m_lUserID = -1;
                btnLogin.Text = "Login";
            }
            return;
        }

        public void cbLoginCallBack(int lUserID, int dwResult, IntPtr lpDeviceInfo, IntPtr pUser)
        {
            string strLoginCallBack = "登录设备，lUserID：" + lUserID + "，dwResult：" + dwResult;
        }

        public void SerialDataCallBack(int lSerialHandle, string pRecvDataBuffer, uint dwBufSize, uint dwUser)
        {
            this.Invoke(new Action(() =>
            {
                byte[] bytes = System.Text.Encoding.Default.GetBytes(pRecvDataBuffer);
                string hexString = BitConverter.ToString(bytes).Replace("-", " ");
                rtxtRecv.Text = "收到数据：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "-->" + hexString;
            }));
        }

        private void btnSend_Click(object sender, EventArgs e)
        {
            if (m_lUserID == -1)
            {
                MessageBox.Show("请先登录！");
                return;
            }

            int iSelSerialIndex = 2; // 1:232串口；2:485串口
            int lSerialChan = 1; // 使用485时该值有效，从1开始；232时设置为0
            int brightness = 0;

            if (Protocol == "RS232")
            {
                iSelSerialIndex = 1;
                lSerialChan = 0;

                #region 设置232为透明通道模式（使用232透明通道时调用，485不需要）

                uint dwReturned = 0;
                NET_DVR_RS232CFG_V30 struRS232Cfg = new NET_DVR_RS232CFG_V30();

                // 分配非托管内存
                IntPtr ptrRS232Cfg = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(NET_DVR_RS232CFG_V30)));
                Marshal.StructureToPtr(struRS232Cfg, ptrRS232Cfg, false);

                if (!CHCNetSDK.NET_DVR_GetDVRConfig(m_lUserID, CHCNetSDK.NET_DVR_GET_RS232CFG_V30, 0,
                    ptrRS232Cfg, (uint)Marshal.SizeOf(typeof(NET_DVR_RS232CFG_V30)), ref dwReturned))
                {
                    MessageBox.Show($"NET_DVR_GET_RS232CFG_V30 错误: {CHCNetSDK.NET_DVR_GetLastError()}");
                    return;
                }

                // 将非托管内存转换为结构体
                struRS232Cfg = (NET_DVR_RS232CFG_V30)Marshal.PtrToStructure(ptrRS232Cfg, typeof(NET_DVR_RS232CFG_V30));
                struRS232Cfg.struRs232.dwWorkMode = 2; // 设置232为透明通道模式；0：窄带传输，1：控制台，2：透明通道

                // 将结构体转换回非托管内存
                Marshal.StructureToPtr(struRS232Cfg, ptrRS232Cfg, false);

                if (!CHCNetSDK.NET_DVR_SetDVRConfig(m_lUserID, CHCNetSDK.NET_DVR_SET_RS232CFG_V30, 0,
                    ptrRS232Cfg, (uint)Marshal.SizeOf(typeof(NET_DVR_RS232CFG_V30))))
                {
                    MessageBox.Show($"NET_DVR_SET_RS232CFG_V30 错误: {CHCNetSDK.NET_DVR_GetLastError()}");
                    return;
                }
                #endregion
            }

            // 创建回调委托
            CHCNetSDK.SERIALDATACALLBACK callback = new CHCNetSDK.SERIALDATACALLBACK(SerialDataCallBack);

            // 设置回调函数获取透传数据

            m_bSend = CHCNetSDK.NET_DVR_SerialStart(m_lUserID, iSelSerialIndex, callback, (uint)m_lUserID);

            if (!m_bSend)
            {
                MessageBox.Show($"NET_DVR_SerialStart 错误: {CHCNetSDK.NET_DVR_GetLastError()}");
                return;
            }

            // 通过透明通道发送数据
            lSerialChan = 1;

            byte[] szSendBuf = { 0x01, 0x02, 0x03, 0x04 };

            string hexString = BitConverter.ToString(szSendBuf).Replace("-", " ");
            rtxtSend.Text = "发送数据：" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "-->" + hexString;

            if (!CHCNetSDK.NET_DVR_SerialSend(m_lUserID, lSerialChan, szSendBuf, (uint)szSendBuf.Length))
            {
                MessageBox.Show($"NET_DVR_SerialSend 错误: {CHCNetSDK.NET_DVR_GetLastError()}");
                return;
            }
            else
            {
                MessageBox.Show("发送成功！");
            }
        }


        private void button2_Click(object sender, EventArgs e)
        {
            rtxtRecv.Text = "";
        }
    }
}
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