c#编写activeX控件详细教程

描述：vs2012

1、新建windows窗体控件库，命名为 MyActiveXDemo，打开Properties/AssemblyInfo.cs，修改为如下：

2、打开工具箱，在自动生成的UserControl1.cs设计视图中添加一个button，如下图：

3、双击button1，为按钮添加方法，这里演示只添加了一个弹出消息，如下

private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("ActiveX Message.");
        }

4、创建接口IObjectSafety.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;

namespace MyActiveXDemo
{
    [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);

    }
}

5、修改UserControl1.cs，使其继承接口IObjectSafety，完整的UserControl1.cs如下

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace MyActiveXDemo
{
    [Guid("73D3BE6A-E3B3-46F7-AFFE-8673390DA3F6"), ProgId("ActiveXDemo.UserControl1"), ComVisible(true)]
    public partial class UserControl1 : UserControl, IObjectSafety
    {
        public UserControl1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show("ActiveX Message.");
        }
        #region IObjectSafety 成员 格式固定


        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
    }
}

6、右键项目MyActiveXDemo属性，

      a、应用程序=》点击程序集信息=》勾选“使程序集COM可见”

      b、生成=》勾选“为COM互操作注册”

7、解决方案右键=》添加=》其它项目类型=》安装和部署，选中“InstallShield Limited Edition Project”，命名为“ActiveXSetup”，确定

8、点击application files=》My Product Name=》右下角点击add Product Outputs，在弹出框内勾选“主输出”，确定，如下图

9、右键ActiveXSetup，生成，成功后在ActiveXSetup\Express\DVD-5\DiskImages\DISK1下可以看到ActiveXSetup.msi安装程序，到这里就成功了一大半了。

10、网上下载一个cabarc.exe，放在与ActiveXSetup.msi安装文件相同目录，下载地址：https://sqdownd.rbread05.cn/down/42010_20161130174135.rar，在相同目录创建一个install.inf文件，文件内容如下：

[version]

signature="$CHICAGO$"
AdvancedINF=2.0
[Setup Hooks]
hook1=hook1
[hook1]
run=msiexec.exe /i "%EXTRACT_DIR%\ActiveXSetup.msi" /qn

11、同时在同目录创建一个build.bat，内容如下：

"cabarc.exe"  n test.cab ActiveXSetup.msi install.inf 

双击build.bat，执行完毕后将会生成一个test.cab文件，到此ActiceX控件已经打包好了。

如何在浏览器上加载ActiveX控件？请看下一篇：asp.net 如何在网页上加载ActiveX控件

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