C#制作ActiveX控件中如何调用海康SDK的问题解决
导读：收集整理的这篇文章主要介绍了C#制作ActiveX控件中如何调用海康SDK的问题解决，觉得挺不错的，现在分享给大家，也给大家做个参考。 这个事情就是一个坑，耽误了两周时间，之前并没有做过ActiveX这玩意，现在客户需求如此，只能说是在网...
收集整理的这篇文章主要介绍了C#制作ActiveX控件中如何调用海康SDK的问题解决，觉得挺不错的，现在分享给大家，也给大家做个参考。 这个事情就是一个坑，耽误了两周时间，之前并没有做过ActiveX这玩意，现在客户需求如此，只能说是在网上看着教程做了。事情是这样的，有一台海康威视的摄像头，客户需要一个ActiveX控件嵌入到网页中，通过点击按钮开始录制和结束录制来进行视频的录制和保存，关于海康摄像头的二次开发在此就不多说了，可以参考SDK中的说明。
直接上流程：
1.开发环境：
VS2010,这个打包方便，之前用VS2013打包的，总是调用不了，不知道原因是什么；SDK是32位的，用64位的在Winform中可以正常使用，在网页中使用控件时会报错。
2.新建项目：
新建一个类库项目，如下：
右键点击项目，添加“用户控件”，如下：
界面拖控件，如下：
控件代码如下，其中Guid是“工具”-> “创建GUID”自动生成的，#region-> #endregion折叠部分是实现的IObjectSafety接口
using System;
namespace VideoHelPEr{
[System.SecurITy.SecuritySafeCritical] public class Videos {
PRivate bool m_initSDK = false;
/// summary>
/// 正在录制 /// /summary>
private bool m_Record = false;
private uint LastErr = 0;
private Int32 m_RealHandle = -1;
private Int32 m_lUserID = -1;
public IntPtr handle {
get;
set;
}
public bool Initialize(string ip = "192.168.1.64", int port = 8000, string username = "admin", string password = "8910jqk#") {
try {
m_initSDK = CHCNetSDK.NET_DVR_Init();
if (m_initSDK) {
CHCNetSDK.NET_DVR_SetLOGToFile(3, "C:\\SdkLog\\", true);
//设备参数结构体 CHCNetSDK.NET_DVR_DEVICeiNFO_V30 DeviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V30();
//注册设备 m_lUserID = CHCNetSDK.NET_DVR_Login_V30(ip, port, username, password, ref DeviceInfo);
return m_lUserID >
= 0;
}
return false;
}
catch (Exception ex) {
System.Windows.Forms.MessageBox.Show("Initialize:" + ex.Message);
return false;
}
}
public bool Start(IntPtr handle, string filename) {
try {
CHCNetSDK.NET_DVR_PrevIEWINFO lpPreviewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO();
lpPreviewInfo.lChannel = 1;
lpPreviewInfo.dwLinkMode = 0;
lpPreviewInfo.dwStreamType = 0;
lpPreviewInfo.bBlocked = true;
lpPreviewInfo.dwDisplayBufNum = 15;
lpPreviewInfo.hPlayWnd = handle;
IntPtr pUser = IntPtr.Zero;
//new IntPtr();
//获取实时视频流 m_RealHandle = CHCNetSDK.NET_DVR_RealPlay_V40(m_lUserID, ref lpPreviewInfo, null, pUser);
if (m_Record == false) {
CHCNetSDK.NET_DVR_MakeKeyFrame(m_lUserID, 1);
if (!CHCNetSDK.NET_DVR_SaveRealData(m_RealHandle, filename)) {
LastErr = CHCNetSDK.NET_DVR_GetLastError();
return false;
}
else {
m_Record = true;
return true;
}
}
else {
return false;
}
}
catch {
return false;
}
}
public bool End() {
if (m_Record) {
if (!CHCNetSDK.NET_DVR_StopSaveRealData(m_RealHandle)) {
LastErr = CHCNetSDK.NET_DVR_GetLastError();
return false;
}
m_Record = false;
m_RealHandle = -1;
return true;
}
else {
return false;
}
}
public void Dispose() {
try {
if (m_lUserID >
= 0) {
CHCNetSDK.NET_DVR_Logout_V30(m_lUserID);
m_lUserID = -1;
}
if (m_RealHandle >
= 0) {
CHCNetSDK.NET_DVR_StopRealPlay(m_RealHandle);
m_RealHandle = -1;
}
CHCNetSDK.NET_DVR_Cleanup();
}
catch {
}
}
}
}
录制视频操作类录制视频操作类
using System;
using System.Runtime.InteropServices;
namespace VideoHelper{
[ComImport, GuidAttribute("CB5BDC81-93C1-11CF-8f20-00805F2CD064")] [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)] public interface IObjectSafety {
[PreserveSig] int GetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] ref int pdwSupportedOptions, [MarshalAs(UnmanagedType.U4)] ref int pdwEnabledOptions);
[PreserveSig()] int SetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] int dwOptionSetMask, [MarshalAs(UnmanagedType.U4)] int dwEnabledOptions);
}
}
接口代码using System;
using System.Windows.Forms;
using System.IO;
using System.Runtime.InteropServices;
namespace VideoHelper{
[System.Security.SecuritySafeCritical] [Guid("79629620-3C0C-4D47-B93B-2D36AEF8EF31")] public partial class VideoControl : UserControl,IObjectSafety {
public VideoControl() {
Initializecomponent();
}
string videopath = environment.currentDirectory;
Videos video;
IntPtr handle;
private void BTnLogin_Click(object sender, Eventargs e) {
if (btnLogin.Text == "登录") {
try {
if (string.IsNullOrWhiteSpace(this.txtIP.Text)) {
MessageBox.Show("IP地址不能为空！");
return;
}
if (string.IsNullOrWhiteSpace(this.txtUserID.Text)) {
MessageBox.Show("用户名不能为空！");
return;
}
if (string.IsNullOrWhiteSpace(this.txtPwd.Text)) {
MessageBox.Show("密码不能为空！");
return;
}
video = new Videos();
if (video.Initialize(this.txtIP.Text, Convert.ToInt32(this.numericUpDown1.Value), this.txtUserID.Text, this.txtPwd.Text)) {
this.btnLogin.Text = "注销";
MessageBox.Show("登录成功！");
this.btnStart.Enabled = true;
this.btnSave.Enabled = true;
}
else {
MessageBox.Show("登录失败！");
}
}
catch (Exception ee) {
MessageBox.Show("登录异常：" + ee.Message);
}
}
else if (btnLogin.Text == "注销") {
try {
video.Dispose();
this.btnLogin.Text = "登录";
this.btnStart.Enabled = false;
this.btnSave.Enabled = false;
}
catch (Exception ee) {
MessageBox.Show("注销异常：" + ee.Message);
}
}
}
private void btnStart_Click(object sender, EventArgs e) {
try {
string filename = txtFile.Text.Trim();
if (filename.IndexOfany(Path.GetInvaliDFileNameChars()) >
= 0 || string.IsNullOrWhiteSpace(filename)) {
MessageBox.Show("文件名含有非法字符或空格，请重新输入");
txtFile.Focus();
return;
}
video.Start(handle, filename + comboBox1.SelectedItem.ToString());
this.btnStart.Enabled = false;
this.btnSave.Enabled = true;
}
catch (Exception ee) {
MessageBox.Show("异常：" + ee.Message);
}
}
private void btnSave_Click(object sender, EventArgs e) {
try {
if (video.End()) {
MessageBox.Show("视频已保存！");
this.btnStart.Enabled = true;
this.btnSave.Enabled = false;
}
else {
MessageBox.Show("保存失败！");
this.btnStart.Enabled = true;
this.btnSave.Enabled = true;
}
}
catch (Exception ee) {
MessageBox.Show("异常：" + ee.Message);
}
}
private void button1_Click(object sender, EventArgs e) {
try {
System.Diagnostics.Process.Start(videopath);
}
catch {
}
}
private void VideoControl_Load(object sender, EventArgs e) {
this.COMboBox1.SelectedItem = ".mp4";
this.handle = pictureBox1.Handle;
this.btnStart.Enabled = false;
this.btnSave.Enabled = false;
}
#region IObjectSafety 成员 private const string _IID_IDispatch = "{
00020400-0000-0000-C000-000000000046}
";
private const string _IID_IDispatchEx = "{
a6ef9860-c720-11d0-9337-00a0c90dcaa9}
";
private const string _IID_IPersistStorage = "{
0000010A-0000-0000-C000-000000000046}
";
private const string _IID_IPersistStream = "{
00000109-0000-0000-C000-000000000046}
";
private const string _IID_IPersistPropertyBag = "{
37D84F60-42CB-11CE-8135-00AA004BB851}
";
private const int INTERFACESAFE_FOR_UNTRUSTED_CALLER = 0x00000001;
private const int INTERFACESAFE_FOR_UNTRUSTED_DATA = 0x00000002;
private const int S_OK = 0;
private const int E_FaiL = unchecked((int)0x80004005);
private const int E_NOINTERFACE = unchecked((int)0x80004002);
private bool _fSafeForScripting = true;
private bool _fSafeForInitializing = true;
public int GetInterfaceSafetyOptions(ref Guid riid, ref int pdwSupportedOptions, ref int pdwEnabledOptions) {
int Rslt = E_FAIL;
string strGUID = riid.ToString("B");
pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA;
switch (strGUID) {
case _IID_IDispatch: case _IID_IDispatchEx: Rslt = S_OK;
pdwEnabledOptions = 0;
if (_fSafeForScripting == true) pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER;
break;
case _IID_IPersistStorage: case _IID_IPersistStream: case _IID_IPersistPropertyBag: Rslt = S_OK;
pdwEnabledOptions = 0;
if (_fSafeForInitializing == true) pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA;
break;
default: Rslt = E_NOINTERFACE;
break;
}
return Rslt;
}
public int SetInterfaceSafetyOptions(ref Guid riid, int dwOptionSetMask, int dwEnabledOptions) {
int Rslt = E_FAIL;
string strGUID = riid.ToString("B");
switch (strGUID) {
case _IID_IDispatch: case _IID_IDispatchEx: if (((dwEnabledOptions &
dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_CALLER) &
&
(_fSafeForScripting == true)) Rslt = S_OK;
break;
case _IID_IPersistStorage: case _IID_IPersistStream: case _IID_IPersistPropertyBag: if (((dwEnabledOptions &
dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_DATA) &
&
(_fSafeForInitializing == true)) Rslt = S_OK;
break;
default: Rslt = E_NOINTERFACE;
break;
}
return Rslt;
}
#endregion }
}
控件代码namespace VideoHelper{
partial class VideoControl {
/// summary>
/// 必需的设计器变量。 /// /summary>
private System.ComponentModel.IContainer components = null;
/// summary>
/// 清理所有正在使用的资源。 /// /summary>
/// param name="disposing">
如果应释放托管资源，为 true；否则为 false。/param>
protected override void Dispose(bool disposing) {
if (disposing &
&
(components != null)) {
components.Dispose();
}
base.Dispose(disposing);
}
#region 组件设计器生成的代码 /// summary>
/// 设计器支持所需的方法 - 不要 /// 使用代码编辑器修改此方法的内容。 /// /summary>
private void InitializeComponent() {
this.button1 = new System.Windows.Forms.Button();
this.comboBox1 = new System.Windows.Forms.ComboBox();
this.label4 = new System.Windows.Forms.Label();
this.txtFile = new System.Windows.Forms.TextBox();
this.btnSave = new System.Windows.Forms.Button();
this.btnStart = new System.Windows.Forms.Button();
this.btnLogin = new System.Windows.Forms.Button();
this.label3 = new System.Windows.Forms.Label();
this.txtPwd = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.txtUserID = new System.Windows.Forms.TextBox();
this.label1 = new System.Windows.Forms.Label();
this.numericUpDown1 = new System.Windows.Forms.NumericUpDown();
this.IP = new System.Windows.Forms.Label();
this.txtIP = new System.Windows.Forms.TextBox();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
this.SuspendLayout();
// // button1 // this.button1.Cursor = System.Windows.Forms.Cursors.Hand;
this.button1.Font = new System.Drawing.Font("微软雅黑", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.button1.Location = new System.Drawing.Point(377, 360);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(138, 22);
this.button1.TabIndex = 58;
this.button1.Text = "打开视频存放位置";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
// // comboBox1 // this.comboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBox1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.comboBox1.Font = new System.Drawing.Font("微软雅黑", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.comboBox1.FormattingEnabled = true;
this.comboBox1.Items.AddRange(new object[] {
".mp4", ".avi", ".wmv", ".3gp", ".flv"}
);
this.comboBox1.Location = new System.Drawing.Point(303, 361);
this.comboBox1.Name = "comboBox1";
this.comboBox1.Size = new System.Drawing.Size(55, 25);
this.comboBox1.TabIndex = 57;
// // label4 // this.label4.AutoSize = true;
this.label4.Font = new System.Drawing.Font("微软雅黑", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.label4.Location = new System.Drawing.Point(14, 360);
this.label4.Name = "label4";
this.label4.Size = new System.Drawing.Size(116, 17);
this.label4.TabIndex = 56;
this.label4.Text = "请输入视频文件名：";
// // txtFile // this.txtFile.Location = new System.Drawing.Point(136, 360);
this.txtFile.Name = "txtFile";
this.txtFile.Size = new System.Drawing.Size(161, 21);
this.txtFile.TabIndex = 55;
// // btnSave // this.btnSave.Cursor = System.Windows.Forms.Cursors.Hand;
this.btnSave.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.btnSave.Location = new System.Drawing.Point(490, 298);
this.btnSave.Name = "btnSave";
this.btnSave.Size = new System.Drawing.Size(57, 45);
this.btnSave.TabIndex = 54;
this.btnSave.Text = "保存";
this.btnSave.UseVisualStyleBackColor = true;
this.btnSave.Click += new System.EventHandler(this.btnSave_Click);
// // btnStart // this.btnStart.Cursor = System.Windows.Forms.Cursors.Hand;
this.btnStart.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.btnStart.Location = new System.Drawing.Point(421, 298);
this.btnStart.Name = "btnStart";
this.btnStart.Size = new System.Drawing.Size(57, 45);
this.btnStart.TabIndex = 53;
this.btnStart.Text = "录制";
this.btnStart.UseVisualStyleBackColor = true;
this.btnStart.Click += new System.EventHandler(this.btnStart_Click);
// // btnLogin // this.btnLogin.Cursor = System.Windows.Forms.Cursors.Hand;
this.btnLogin.Font = new System.Drawing.Font("微软雅黑", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.btnLogin.Location = new System.Drawing.Point(352, 298);
this.btnLogin.Name = "btnLogin";
this.btnLogin.Size = new System.Drawing.Size(57, 45);
this.btnLogin.TabIndex = 52;
this.btnLogin.Text = "登录";
this.btnLogin.UseVisualStyleBackColor = true;
this.btnLogin.Click += new System.EventHandler(this.btnLogin_Click);
// // label3 // this.label3.AutoSize = true;
this.label3.Font = new System.Drawing.Font("微软雅黑", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.label3.Location = new System.Drawing.Point(172, 325);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(44, 17);
this.label3.TabIndex = 51;
this.label3.Text = "密码：";
// // txtPwd // this.txtPwd.Location = new System.Drawing.Point(221, 322);
this.txtPwd.Name = "txtPwd";
this.txtPwd.PasswordChar = '*';
this.txtPwd.Size = new System.Drawing.Size(115, 21);
this.txtPwd.TabIndex = 50;
this.txtPwd.Text = "8910jqk#";
this.txtPwd.UseSystemPasswordChar = true;
// // label2 // this.label2.AutoSize = true;
this.label2.Font = new System.Drawing.Font("微软雅黑", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.label2.Location = new System.Drawing.Point(8, 322);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(44, 17);
this.label2.TabIndex = 49;
this.label2.Text = "用户名";
// // txtUserID // this.txtUserID.Location = new System.Drawing.Point(66, 322);
this.txtUserID.Name = "txtUserID";
this.txtUserID.Size = new System.Drawing.Size(100, 21);
this.txtUserID.TabIndex = 48;
this.txtUserID.Text = "admin";
// // label1 // this.label1.AutoSize = true;
this.label1.Font = new System.Drawing.Font("微软雅黑", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.label1.Location = new System.Drawing.Point(172, 295);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(44, 17);
this.label1.TabIndex = 47;
this.label1.Text = "端口：";
// // numericUpDown1 // this.numericUpDown1.Location = new System.Drawing.Point(222, 295);
this.numericUpDown1.Maximum = new decimal(new int[] {
65535, 0, 0, 0}
);
this.numericUpDown1.Minimum = new decimal(new int[] {
1, 0, 0, 0}
);
this.numericUpDown1.Name = "numericUpDown1";
this.numericUpDown1.Size = new System.Drawing.Size(114, 21);
this.numericUpDown1.TabIndex = 46;
this.numericUpDown1.Value = new decimal(new int[] {
8000, 0, 0, 0}
);
// // IP // this.IP.AutoSize = true;
this.IP.Font = new System.Drawing.Font("微软雅黑", 9F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
this.IP.Location = new System.Drawing.Point(20, 295);
this.IP.Name = "IP";
this.IP.Size = new System.Drawing.Size(19, 17);
this.IP.TabIndex = 45;
this.IP.Text = "IP";
// // txtIP // this.txtIP.Location = new System.Drawing.Point(66, 295);
this.txtIP.Name = "txtIP";
this.txtIP.Size = new System.Drawing.Size(100, 21);
this.txtIP.TabIndex = 44;
this.txtIP.Text = "192.168.1.64";
// // pictureBox1 // this.pictureBox1.Location = new System.Drawing.Point(5, 5);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(542, 269);
this.pictureBox1.TabIndex = 43;
this.pictureBox1.TabStop = false;
// // VideoControl // this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.Controls.Add(this.button1);
this.Controls.Add(this.comboBox1);
this.Controls.Add(this.label4);
this.Controls.Add(this.txtFile);
this.Controls.Add(this.btnSave);
this.Controls.Add(this.btnStart);
this.Controls.Add(this.btnLogin);
this.Controls.Add(this.label3);
this.Controls.Add(this.txtPwd);
this.Controls.Add(this.label2);
this.Controls.Add(this.txtUserID);
this.Controls.Add(this.label1);
this.Controls.Add(this.numericUpDown1);
this.Controls.Add(this.IP);
this.Controls.Add(this.txtIP);
this.Controls.Add(this.pictureBox1);
this.Name = "VideoControl";
this.Size = new System.Drawing.Size(556, 398);
this.Load += new System.EventHandler(this.VideoControl_Load);
((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
this.ResumeLayout(false);
this.PerforMLayout();
}
#endregion private System.Windows.Forms.Button button1;
private System.Windows.Forms.ComboBox comboBox1;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.TextBox txtFile;
private System.Windows.Forms.Button btnSave;
private System.Windows.Forms.Button btnStart;
private System.Windows.Forms.Button btnLogin;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.TextBox txtPwd;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox txtUserID;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.NumericUpDown numericUpDown1;
private System.Windows.Forms.Label IP;
private System.Windows.Forms.TextBox txtIP;
private System.Windows.Forms.PictureBox pictureBox1;
}
}
控件设计器代码控件设计器代码
至此，此项目结束。
右键点击解决方案，添加新项目，如下，至于为什么建立两个项目，我一会儿在下面解释，
在HkHelper项目中添加类CHCNetSDK.cs，此类是海康提供的，可以在官网找到
接下来，最重要的，项目属性设置如下，两个项目都要设置：
至此，自定义控件已经完成，接下来就是打包，新建一个安装项目：
右键点击安装项目，“添加”-> “项目输出”，并选择自定义控件的项目，然后确定
然后添加海康提供的SDK的库文件文件夹下的所有文件和文件夹到项目中，如下：
然后生成项目，会生成SETUP.exe和Setupvideo.msi两个文件，然后用打包文件，把这两个文件打包称cab文件就OK了
打包文件一共三个cabarc.exe、build.bat、install.inf
build.bat文件：
"cabarc.exe" n VideoSetup.cab SetupVideo.msi install.inf
install.inf文件：
[version]signature="$CHICAGO$"AdvancedINF=2.0[Setup Hooks]hook1=hook1[hook1]run=msiexec.exe /i "%EXTRACT_DIR%\SetupVideo.msi" /qn
cabarc.exe是微软提供的工具
最后说一下为什么要分为两个项目去实现控件，那是因为如果在一个项目中的话，调用海康动态库的类CHCNetSDK.cs不能进行COM注册
以上就是C#制作ActiveX控件中如何调用海康SDK的问题解决的详细内容，更多请关注其它相关文章！
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