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使用VS2010 C#开发ActiveX控件

  在网上查了一些资料也实际操作了一下,在此自己再作一次详细记录。

  功能:将对机具操作的FK.dll封装成fk.ocx,注册后能在网页上对机器操作。

使用Visual Studio 2010 .NET Framework 2.0(C#)

开发ActiveX步骤:

  1. 创建一个应用程序解决方案,并添加一个Windows控件库项目

  2. 更改“项目属性-应用程序-程序集信息”设置,勾选“使程序集 COM 可见”

  3.更改“项目属性-生成”设置,勾选“为 COM Interop 注册”(注意,此处如果实在debug状态下修改的,那在调到release状态下还需要再设置一次):

  4.修改AssemblyInfo.cs文件,添加[assembly: AllowPartiallyTrustedCallers()]项(需要引用System.Security名称空间):

  5.添加一个Windows用户控件名称:DHFkAttendOCX(自已定义,可以将已有的更改名称)

  6.为控件类添加GUID,这个编号将用于B/S系统的客户端调用时使用(可以使用 工具-创建GUID 菜单创建一个GUID,再复制):

  7.为了让ActiveX控件获得客户端的信任,控件类还需要实现一个名为“IObjectSafety”的接口,要创建该接口(注意,不能修改该接口的GUID值),IObjectSafety.cs代码如下:

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 using System.Runtime.InteropServices;
 5 namespace DHFkAttendOCX
 6 {
 7     [ComImport, GuidAttribute("CB5BDC81-93C1-11CF-8F20-00805F2CD064")]
 8     [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
 9     public interface IObjectSafety
10     {
11         [PreserveSig]
12         int GetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] ref int pdwSupportedOptions, [MarshalAs(UnmanagedType.U4)] ref int pdwEnabledOptions);
13         [PreserveSig()]
14         int SetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] int dwOptionSetMask, [MarshalAs(UnmanagedType.U4)] int dwEnabledOptions);
15     }
16 }

  8.然后在控件类中继承并实现该接口,可以直接复制不用作任何更改:

 1   ////IObjectSafety 成员
 2         #region IObjectSafety 成员
 3 
 4         private const string _IID_IDispatch = "{00020400-0000-0000-C000-000000000046}";
 5         private const string _IID_IDispatchEx = "{a6ef9860-c720-11d0-9337-00a0c90dcaa9}";
 6         private const string _IID_IPersistStorage = "{0000010A-0000-0000-C000-000000000046}";
 7         private const string _IID_IPersistStream = "{00000109-0000-0000-C000-000000000046}";
 8         private const string _IID_IPersistPropertyBag = "{37D84F60-42CB-11CE-8135-00AA004BB851}";
 9 
10         private const int INTERFACESAFE_FOR_UNTRUSTED_CALLER = 0x00000001;
11         private const int INTERFACESAFE_FOR_UNTRUSTED_DATA = 0x00000002;
12         private const int S_OK = 0;
13         private const int E_FAIL = unchecked((int)0x80004005);
14         private const int E_NOINTERFACE = unchecked((int)0x80004002);
15 
16         private bool _fSafeForScripting = true;
17         private bool _fSafeForInitializing = true;
18 
19         public int GetInterfaceSafetyOptions(ref Guid riid, ref int pdwSupportedOptions, ref int pdwEnabledOptions)
20         {
21             int Rslt = E_FAIL;
22 
23             string strGUID = riid.ToString("B");
24             pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA;
25             switch (strGUID)
26             {
27                 case _IID_IDispatch:
28                 case _IID_IDispatchEx:
29                     Rslt = S_OK;
30                     pdwEnabledOptions = 0;
31                     if (_fSafeForScripting == true)
32                         pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER;
33                     break;
34                 case _IID_IPersistStorage:
35                 case _IID_IPersistStream:
36                 case _IID_IPersistPropertyBag:
37                     Rslt = S_OK;
38                     pdwEnabledOptions = 0;
39                     if (_fSafeForInitializing == true)
40                         pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA;
41                     break;
42                 default:
43                     Rslt = E_NOINTERFACE;
44                     break;
45             }
46 
47             return Rslt;
48         }
49 
50         public int SetInterfaceSafetyOptions(ref Guid riid, int dwOptionSetMask, int dwEnabledOptions)
51         {
52             int Rslt = E_FAIL;
53             string strGUID = riid.ToString("B");
54             switch (strGUID)
55             {
56                 case _IID_IDispatch:
57                 case _IID_IDispatchEx:
58                     if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_CALLER) && (_fSafeForScripting == true))
59                         Rslt = S_OK;
60                     break;
61                 case _IID_IPersistStorage:
62                 case _IID_IPersistStream:
63                 case _IID_IPersistPropertyBag:
64                     if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_DATA) && (_fSafeForInitializing == true))
65                         Rslt = S_OK;
66                     break;
67                 default:
68                     Rslt = E_NOINTERFACE;
69                     break;
70             }
71 
72             return Rslt;
73         }
74 
75 
76         #endregion

  9.引用自己想要封装的FK.dll

1     #region 引用dll方法
2         [DllImport("FK.dll")]
3         public static extern int FK_ConnectComm(int nMachineNo, int nComPort, int nBaudRate,
4             string pstrTelNumber, int nWaitDialTime, int nLicense, int nComTimeOut);
5   #endregion

  10.封装

1      #region 封装方法
2         [SecurityCritical]
3         public int IDFK_ConnectNet(int nMachineNo, string strIpAddress, int nNetPort, int nTimeOut, int nProtocolType, int nNetPassword, int nLicense)
4         {
5             int result = FK_ConnectNet(nMachineNo, strIpAddress, nNetPort, nTimeOut, nProtocolType, nNetPassword, nLicense);
6             return result;
7         }
8       #endregion 

  11.打包并发布ActiveX,与普通的Windows Form应用程序的安装部署几乎一样,只有一个地方需要注意,将前面创建的用户控件项目作为主输出项目,并设置其Register属性为vsdrpCOM

  12.给应用程序文件夹添加项目输出时,我们将DHFkAttendOCX项目添加进来,在项目中选择DHFkAttendOCX控件项目

  13.将FK.dll和其它引用的dll都一并作为文件添加

  14.在系统文件夹system32文件夹中将msiexec.exe(卸载控件时用到)地址找到也添加至上面文件夹

  15.在“用户的程序菜单”中,新建文件夹后加入主程序与msiexec.exe快捷方式

  16.点击安装项目工程,在属性中将ProductCode复制,点击msiexec.exe快捷方式,在属性Arguments中 加入"/x+一个空隔+ProductCode"

  17.生成项目,打包文件就生成了,打开..\Debug看到生成了2个文件,一个是xx.exe,一个是xx.msi,执行exe安装到系统。

  18.安装成功后, 在页面中添加<object id="csocx" classid="clsid:FE7EC23B-78A6-45B9-B61E-945970D963B6"></object>

       "FE7EC23B-78A6-45B9-B61E-945970D963B6"为第6步生成的GUID

  19.页面中js中引用

 <script language="javascript" type="text/javascript">
        //操作
        function OnOpearOnMachion(opearValue) {
            var ocxKq = document.getElementById("csocx");
             var bolResult = ocxKq.IDFK_ConnectNet(1, "192.168.0.123", 5005, 3000, 0, 0, 123);           
    }
  </script>

  20.大功造成。

  21.附代码

  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Drawing;
  5 using System.Data;
  6 using System.Text;
  7 using System.Windows.Forms;
  8 using System.Runtime.InteropServices;
  9 using System.Security;
 10 
 11 namespace DHFkAttendOCX
 12 {
 13     [Guid("FE7EC23B-78A6-45B9-B61E-945970D963B6")]
 14     [ProgId("DHFkAttend")]
 15     public partial class DHFkAttendOCX : UserControl
 16     {
 17         public DHFkAttendOCX()
 18         {
 19             InitializeComponent();
 20         }
 21         ////IObjectSafety 成员
 22         #region IObjectSafety 成员
 23 
 24         private const string _IID_IDispatch = "{00020400-0000-0000-C000-000000000046}";
 25         private const string _IID_IDispatchEx = "{a6ef9860-c720-11d0-9337-00a0c90dcaa9}";
 26         private const string _IID_IPersistStorage = "{0000010A-0000-0000-C000-000000000046}";
 27         private const string _IID_IPersistStream = "{00000109-0000-0000-C000-000000000046}";
 28         private const string _IID_IPersistPropertyBag = "{37D84F60-42CB-11CE-8135-00AA004BB851}";
 29 
 30         private const int INTERFACESAFE_FOR_UNTRUSTED_CALLER = 0x00000001;
 31         private const int INTERFACESAFE_FOR_UNTRUSTED_DATA = 0x00000002;
 32         private const int S_OK = 0;
 33         private const int E_FAIL = unchecked((int)0x80004005);
 34         private const int E_NOINTERFACE = unchecked((int)0x80004002);
 35 
 36         private bool _fSafeForScripting = true;
 37         private bool _fSafeForInitializing = true;
 38 
 39         public int GetInterfaceSafetyOptions(ref Guid riid, ref int pdwSupportedOptions, ref int pdwEnabledOptions)
 40         {
 41             int Rslt = E_FAIL;
 42 
 43             string strGUID = riid.ToString("B");
 44             pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | INTERFACESAFE_FOR_UNTRUSTED_DATA;
 45             switch (strGUID)
 46             {
 47                 case _IID_IDispatch:
 48                 case _IID_IDispatchEx:
 49                     Rslt = S_OK;
 50                     pdwEnabledOptions = 0;
 51                     if (_fSafeForScripting == true)
 52                         pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER;
 53                     break;
 54                 case _IID_IPersistStorage:
 55                 case _IID_IPersistStream:
 56                 case _IID_IPersistPropertyBag:
 57                     Rslt = S_OK;
 58                     pdwEnabledOptions = 0;
 59                     if (_fSafeForInitializing == true)
 60                         pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA;
 61                     break;
 62                 default:
 63                     Rslt = E_NOINTERFACE;
 64                     break;
 65             }
 66 
 67             return Rslt;
 68         }
 69 
 70         public int SetInterfaceSafetyOptions(ref Guid riid, int dwOptionSetMask, int dwEnabledOptions)
 71         {
 72             int Rslt = E_FAIL;
 73             string strGUID = riid.ToString("B");
 74             switch (strGUID)
 75             {
 76                 case _IID_IDispatch:
 77                 case _IID_IDispatchEx:
 78                     if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_CALLER) && (_fSafeForScripting == true))
 79                         Rslt = S_OK;
 80                     break;
 81                 case _IID_IPersistStorage:
 82                 case _IID_IPersistStream:
 83                 case _IID_IPersistPropertyBag:
 84                     if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_DATA) && (_fSafeForInitializing == true))
 85                         Rslt = S_OK;
 86                     break;
 87                 default:
 88                     Rslt = E_NOINTERFACE;
 89                     break;
 90             }
 91 
 92             return Rslt;
 93         }
 94 
 95 
 96         #endregion
 97 
 98         #region 引用dll方法
 99         [DllImport("FK.dll")]
100         public static extern int FK_ConnectComm(int nMachineNo, int nComPort, int nBaudRate,
101             string pstrTelNumber, int nWaitDialTime, int nLicense, int nComTimeOut);
102         #endregion
103 
104         #region 封装方法
105         [SecurityCritical]
106         public int IDFK_ConnectNet(int nMachineNo, string strIpAddress, int nNetPort, int nTimeOut, int nProtocolType, int nNetPassword, int nLicense)
107         {
108             int result = FK_ConnectNet(nMachineNo, strIpAddress, nNetPort, nTimeOut, nProtocolType, nNetPassword, nLicense);
109             return result;
110         }
111         #endregion
112     }
113 }

   22.要注意的是,浏览器要设置以下控件才能正常运行

安装所需要的控件后:

打开IE浏览器,在菜单栏点击“工具”—“Internet选项”—“安全”选项卡。

   1. 点击“受信任站点”  

   2.然后点击“站点”弹出如下图片:

  3.按照上图填写内容后,点击“添加”然后点“确定”. 

  4. 设置自定义安全级别(internet本地、受信任站点均需要)   

    5.点击“自定义级别”,弹出如下图片,选择“安全级 – 低” 然后将组件全部“启用”:

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