C#编写的IP摄像头代码

#region IP摄像头代码
    /// <summary>
    /// ip摄像头代码
    /// </summary>    
    //视频
    private IntPtr m_hChannel;
    private IntPtr m_hServer,phPlay;
    public delegate void MyInvoke(string str);
    public delegate void OutDelegate(IntPtr hSearch,DVSNET_FILE_TIME pFileTime,DVSNET_FILE_INFO pFileInfo,IntPtr pcontext); //远程视频处理
    
    public void BeforeRecordFrame(IntPtr hChannel,ref RECORD_INFO pRecordInfo,ref FRAME_HEADER pFrameHeader,IntPtr pcontext)
    {
  
    }
    DVSNETClient.FileSearchCallback File_SearchCallback; //远程视频回放
    public void FileSearchCallback(IntPtr hSearch,ref DVSNET_FILE_TIME pFileTime,ref DVSNET_FILE_INFO pFileInfo,IntPtr pcontext)
    {
        OutText(hSearch,pFileTime,pFileInfo,pcontext);           
    }
    public void OutText(IntPtr hSearch,IntPtr pcontext)
    {
        if (lvVideo.InvokeRequired)
        {
            OutDelegate outdelegate = new OutDelegate(OutText);
            this.BeginInvoke(outdelegate,new object[] { hSearch,pcontext });
            return;
        }
        lvVideo.View = View.Details;
        lvVideo.FullRowSelect = true;
        for (int i = 0; i < pFileInfo.sFileName.Count(); i++)
        {
            ListViewItem item1 = new ListViewItem(pFileInfo.sFileName,i);
            lvVideo.Items.AddRange(new ListViewItem[] { item1 });
        }
  
    }
    private void pb_del_video_Click(object sender,EventArgs e)
    {
        this.Close();
    }
    public void SearchNotify(int nDevType,string sServName,string sServSerial,string sUrl,IntPtr MacAddr,ushort wWebPort,ushort wDataPort,string sSubNetMask,string sGateWay,string sMultiIp,string sDNS,ushort wMultiPort,int nChCount,uint bDHCP,IntPtr pcontext)
    {
        string str = Convert.ToString(wDataPort);
        //string str2 = sUrl + "(" + str + ")";
        string str2 = sUrl;
        this.AddText(str2);
    }
    //赋值给cmbIP
    private void AddText(string str)
    {
        MyInvoke method = new MyInvoke(this.AddTextToCmb);
        base.BeginInvoke(method,new object[] { str });
    }
  
    public void AddTextToCmb(string str)
    {
        this.CmbIP.Items.Add(str);
    }
  
    //s搜索服务器
    private void btnVideoSearck_Click(object sender,EventArgs e)
    {
          
         
            this.CmbIP.Items.Clear();
            errornum errornum = DVSNETClient.DVSNET_SearchServers(0xbb8,1,new DVSNETClient.SearchNotify(this.SearchNotify),base.Handle,IntPtr.Zero);
            if (errornum == errornum.DVSNET_ERR_OK)
            {
               timerVideo.Enabled = true;
               btnVideoSearck.Enabled = false;
            }
            else
            {
  
            }
  
    }
    //打开链接
    private void btnVideoOpen_Click(object sender,EventArgs e)
    {
        string text = this.CmbIP.Text;
        string sServIp = text;
        int index = text.IndexOf('(');
        if (index != -1)
        {
            string str3 = new string(text.ToCharArray(),index);
            sServIp = str3;
        }
        errornum errornum = DVSNETClient.DVSNET_OpenServer(this.EdtName.Text,sServIp,Convert.ToUInt16(this.EdtPort.Text),this.EdtUser.Text,this.EdtPassword.Text,ref this.m_hServer,0);
        this.btnVideoOpen.Enabled = false; //不能点击
        if (errornum == errornum.DVSNET_ERR_OK)
        {
            DVSNET_SERVER_INFO dvsnet_server_info = new DVSNET_SERVER_INFO();
            MessageBox.Show("打开链接成功！");
            dvsnet_server_info = new DVSNET_SERVER_INFO
            {
                lStructSize = Marshal.SizeOf(dvsnet_server_info)
            };
            DVSNETClient.DVSNET_GetServerInfo(this.m_hServer,ref dvsnet_server_info);
            // this.CmbChannel.Items.Clear();
            for (int i = 0; i < dvsnet_server_info.nChnNum; i++)
            {
                int num3 = i + 1;
                // this.CmbChannel.Items.Add(num3.ToString());
            }
            // this.CmbChannel.SelectedIndex = 0;
        }
        else
        {
            MessageBox.Show("打开链接失败,错误码为:" + errornum.ToString());
            this.btnVideoOpen.Enabled = true; //不能点击
        }
    }
    //关闭链接
    private void btnVideoClose_Click(object sender,EventArgs e)
    {
        if (this.m_hChannel != IntPtr.Zero)
        {
            MessageBox.Show("请关闭通道！再关闭链接");
        }
        else
        {
            if (this.m_hServer != IntPtr.Zero)
            {
                DVSNETClient.DVSNET_CloseServer(this.m_hServer);
                this.m_hServer = IntPtr.Zero;
                this.btnVideoOpen.Enabled = true; //不能点击
            }
        }
    }
    //打开通道
    IntPtr selServer = IntPtr.Zero;
    private void btnVideoOpenChnnel_Click(object sender,EventArgs e)
    {
        this.panelVideo.Visible = true;
        this.pannelVideoTwo.Visible = false;
        if (this.m_hServer != IntPtr.Zero)
        {
            this.btnVideoOpenChnnel.Enabled = false; //不能点击
            DVSNET_CHANNEL_INFO dvsnet_channel_info = new DVSNET_CHANNEL_INFO();
            MessageBox.Show("打开通道成功！请稍候");
            dvsnet_channel_info = new DVSNET_CHANNEL_INFO
            {
                lStructSize = Marshal.SizeOf(dvsnet_channel_info),nProtocol = 0,hWndDisplay = this.panelVideo.Handle,bPlayStart = 1,dwStreamNo = 0
            };
            DVSNETClient.DVSNET_OpenChannel(this.m_hServer,Convert.ToUInt16(0),ref dvsnet_channel_info,ref this.m_hChannel);
        }
        else
        {
            MessageBox.Show("请打开链接！");
        }
    }
    //关闭通道
    private void btnVideoCloseChnnel_Click(object sender,EventArgs e)
    {
        if (this.m_hChannel != IntPtr.Zero)
        {
             
            DVSNETClient.DVSNET_CloseChannel(this.m_hChannel);
            MessageBox.Show("关闭通道成功！请稍候");
            this.m_hChannel = IntPtr.Zero;
            this.btnVideoOpenChnnel.Enabled = true; //不能点击
        }
    }
    //开始录像
    private void btnVideoOn_Click(object sender,EventArgs e)
    {
        try
        {
            string ss = DateTime.Now.ToString().Replace(":","-").Replace(" ","-").Replace("/","-") + ".asf";      
            if (this.panelVideo.Visible == false)
            {
                MessageBox.Show("请切换到打开通道");
            }
            else
            {
                if (this.m_hChannel != IntPtr.Zero)
                {
                    this.btnVideoOn.Enabled = false; //不能点击
                    //DVSNETClient.DVSNET_StartRecord(this.m_hChannel,FILETYPE.FILETYPE_ASF,ss,new DVSNETClient.BeforeRecordFrame(this.BeforeRecordFrame),base.Handle);
                    DVSNETClient.DVSNET_StartRecord(this.m_hChannel,Before_RecordFrame,base.Handle);
                }
                else
                {
                    MessageBox.Show("请打开通道！");
                }
            }
        }
        catch (Exception ex)
        {
  
            MessageBox.Show(ex.ToString());
        }      
    }
    //停止录像
    private void btnStopRec_Click(object sender,EventArgs e)
    {
        DVSNETClient.DVSNET_StopRecord(this.m_hChannel);
        MessageBox.Show("已停止录像！");
        this.btnVideoOn.Enabled = true; //不能点击
    }
    //打开本地视频
    IntPtr phPlayer;
    private void btnsearch_Click(object sender,EventArgs e)
    {
        try
        {
            if (m_hServer != IntPtr.Zero)
            {
  
                string fName = "";
                OpenFileDialog openFileDialog = new OpenFileDialog();
                openFileDialog.InitialDirectory = Application.StartupPath;//注意这里写路径时要用c:而不是c:
                openFileDialog.Filter = "文本文件|*.asf|所有文件|*.asf";
                openFileDialog.RestoreDirectory = true;
                openFileDialog.FilterIndex = 1;
                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    this.panelVideo.Visible = false;
                    this.pannelVideoTwo.Visible = true;
                    this.btnsearch.Enabled = false;
                    fName = openFileDialog.FileName;
                    IntPtr hDisplayWnd = pannelVideoTwo.Handle;
                    phPlayer = (IntPtr)0;
                    DVSNETClient.DVSPLAYER_ReleaseInstance(phPlayer); //释放
                    DVSNETClient.DVSPLAYER_Stop(phPlayer); //释放本地
                    errornum aa = DVSNETClient.DVSPLAYER_CreateInstance(hDisplayWnd,ref phPlayer,0);                      
                    aa = DVSNETClient.DVSPLAYER_OpenFile(phPlayer,ref fName,1);
                    DVSNETClient.DVSPLAYER_Start(phPlayer);
                }
                else
                {
                    this.panelVideo.Visible = true;
                    this.pannelVideoTwo.Visible = false;
                }
            }
            else
            {
                MessageBox.Show("请打开通道！");
            }
        }
        catch (Exception)
        {
              
            throw;
        }           
    }
    //停止视频播放
    private void btnhf_Click(object sender,EventArgs e)
    {
        this.panelVideo.Visible = true;
        this.pannelVideoTwo.Visible = false;
        IntPtr phPlayer = (IntPtr)0;
        DVSNETClient.DVSPLAYER_Stop(phPlayer);
        MessageBox.Show("已停止回放录像！");
        this.btnsearch.Enabled = true; ;     
    }
    //查找远程视频
    private void btnSearchbyName_Click(object sender,EventArgs e)
    {
        if (m_hServer == IntPtr.Zero)
        {
            MessageBox.Show("请先打开链接登录服务器！");
            return;
        }
        this.btnSearchbyName.Enabled = false;
        DVSNET_FILE_TIME pStartTime = new DVSNET_FILE_TIME();
        pStartTime.lYear = (uint)this.dateTimePicker1.Value.Year;
        pStartTime.lMonth = (uint)this.dateTimePicker1.Value.Month;
        pStartTime.lDay = (uint)this.dateTimePicker1.Value.Day;
        pStartTime.nHour = 0;
        pStartTime.nMinute = 0;
        DVSNET_FILE_TIME pEndTime = new DVSNET_FILE_TIME();
        pEndTime.lYear = (uint)this.dateTimePicker1.Value.Year;
        pEndTime.lMonth = (uint)this.dateTimePicker1.Value.Month;
        pEndTime.lDay = (uint)this.dateTimePicker1.Value.Day;
        pEndTime.nHour = 23;
        pEndTime.nMinute = 59;
        IntPtr phSearch = IntPtr.Zero;
        //if(){}
        errornum bak = DVSNETClient.DVSNET_ServerFindFile(m_hServer,(char)0xff,ref pStartTime,ref pEndTime,File_SearchCallback,(IntPtr)0,ref phSearch);
        if (bak != errornum.DVSNET_ERR_OK)
        {
            MessageBox.Show("查找远程视频失败！");
        }          
        this.btnSearchbyName.Enabled = true;
    }
  
    //鼠标双击事件
    private void lvVideo_MouseDoubleClick(object sender,MouseEventArgs e)
    {
        this.panelVideo.Visible = false;
        this.pannelVideoTwo.Visible = true;         
  
        string sa = "";
        IntPtr hWnd = pannelVideoTwo.Handle;
        if (lvVideo.SelectedItems.Count > 0)
        { //this.listView1.SelectedIndices
            sa = lvVideo.SelectedItems[0].Text.ToString();
        }
          
      
        DVSNETClient.DVSPLAYER_Stop(phPlayer); //释放本地回放
  
        DVSNETClient.DVSNET_ClosePlayFile(phPlay); //释放远程
        phPlay = IntPtr.Zero;
        errornum bak = DVSNETClient.DVSNET_PlayFileByName(m_hServer,sa,hWnd,ref phPlay);
        if (bak == errornum.DVSNET_ERR_OK)
        {
            UInt32 value = 0;
            DVSNETClient.DVSNET_ControlPlayFile(phPlay,ref value);
        }
  
        else
        {
            MessageBox.Show("回放远程文件 失败,错误码为" + bak.ToString());
        }
    }
    #endregion
    //时间控件 1s
    private void timerVideo_Tick(object sender,EventArgs e)
    {
        int nStatus = 0;
        errornum errnum = DVSNETClient.DVSNET_GetSearchStatus(ref nStatus);
        if (errnum == errornum.DVSNET_ERR_OK)
        {
            if (nStatus == 1)
            {
                btnVideoSearck.Enabled = true;
                timerVideo.Enabled = false;
                MessageBox.Show("没有启动搜索");
            }
            if (nStatus == 2)
            {
                //MessageBox.Show("正在搜索！");
            }
            if (nStatus == 3)
            {
                timerVideo.Enabled = false;
                btnVideoSearck.Enabled = true;
                if (this.CmbIP.Items.Count == 0)
                {
                    MessageBox.Show("没有找到设备！请接上设备");
                }
                else
                {
                    MessageBox.Show("已找到设备，请选择IP地址");
                }
            }
        }
        else
        {
            MessageBox.Show("DVSNET_GetSearchStatus 失败,错误码为" + errnum.ToString());
        }
    }