使用VS2010 C#开发ActiveX控件-白红宇

使用VS2010 C#开发ActiveX控件

阅读量：7116 次

发布时间：2019-06-28

本文共 10841 字，大约阅读时间需要 36 分钟。

　　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：

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 IObjectSafety10     {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

　　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         #endregion103 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         #endregion112     }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”