本文实例讲述了C#实现IP摄像头的方法。分享给大家供大家参考。具体实现方法如下：

#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, DVSNET_FILE_TIME pFileTime, DVSNET_FILE_INFO pFileInfo, IntPtr pcontext){ if (lvVideo.InvokeRequired) { OutDelegate outdelegate = new OutDelegate(OutText); this.BeginInvoke(outdelegate, new object[] { hSearch, pFileTime, pFileInfo, 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(), 0, 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, 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, 1, FILETYPE.FILETYPE_ASF, ss, new DVSNETClient.BeforeRecordFrame(this.BeforeRecordFrame), base.Handle); DVSNETClient.DVSNET_StartRecord(this.m_hChannel, 1, FILETYPE.FILETYPE_ASF, ss,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, 0, 0, (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, 1, hWnd, ref phPlay); if (bak == errornum.DVSNET_ERR_OK) { UInt32 value = 0; DVSNETClient.DVSNET_ControlPlayFile(phPlay, 1, 0, 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()); }}

希望本文所述对大家的C#程序设计有所帮助。