开发Internet Explorer，浏览器帮助对象扩展？

Question

1) 我正在尝试用C#创建一个简单的BHO，就像这里已经回答的一样：https://dev59.com/pW035IYBdhLWcg3wErvM#5740004

2) 但不幸的是，它们都试过IE11以下版本，有些人成功了，有些人失败了。

3) 在遵循该答案中提到的所有内容之后，我还购买了官方代码签名，但它在IE11 Windows 7 64位上根本无法工作。

您可以下载我准备好的Visual Studio 2013版本：其中包括IE11的所有源代码和详细信息：

https://www.dropbox.com/s/60kg212vkjb7yud/ClassLibrary2.rar

问：请问有人能建议/建议/帮助我如何制作这个BHO的hello world？

我还尝试了来自codeproject的其他示例，但仍然没有一个我能够使其工作，已经尝试了4周，我迷失了，请指导我的ClassLibrary2.rar中哪里有问题，不能突出显示文本“browser”？

我完全迷失了，请指导。

编辑：

IEAddon.cs

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using Microsoft.Win32;
using mshtml;
using SHDocVw;

namespace InternetExplorerExtension
{
  [ComVisible(true)]
  [ClassInterface(ClassInterfaceType.None)]
  [Guid("D40C654D-7C51-4EB3-95B2-1E23905C2A2D")]
  [ProgId("MyBHO.WordHighlighter")]
  public class WordHighlighterBHO : IObjectWithSite, IOleCommandTarget
  {
    const string DefaultTextToHighlight = "browser";

    IWebBrowser2 browser;
    private object site;

    #region Highlight Text
    void OnDocumentComplete(object pDisp, ref object URL)
    {
      try
      {

        // This will prevent this method being executed more than once.
        if (pDisp != this.site)
          return;

        var document2 = browser.Document as IHTMLDocument2;
        var document3 = browser.Document as IHTMLDocument3;

        var window = document2.parentWindow;
        window.execScript(@"function FncAddedByAddon() { alert('Message added by addon.'); }");

        Queue<IHTMLDOMNode> queue = new Queue<IHTMLDOMNode>();
        foreach (IHTMLDOMNode eachChild in document3.childNodes)
          queue.Enqueue(eachChild);

        while (queue.Count > 0)
        {
          // replacing desired text with a highlighted version of it
          var domNode = queue.Dequeue();

          var textNode = domNode as IHTMLDOMTextNode;
          if (textNode != null)
          {
            if (textNode.data.Contains(TextToHighlight))
            {
              var newText = textNode.data.Replace(TextToHighlight, "<span style='background-color: yellow; cursor: hand;' onclick='javascript:FncAddedByAddon()' title='Click to open script based alert window.'>" + TextToHighlight + "</span>");
              var newNode = document2.createElement("span");
              newNode.innerHTML = newText;
              domNode.replaceNode((IHTMLDOMNode)newNode);
            }
          }
          else
          {
            // adding children to collection
            var x = (IHTMLDOMChildrenCollection)(domNode.childNodes);
            foreach (IHTMLDOMNode eachChild in x)
            {
              if (eachChild is mshtml.IHTMLScriptElement)
                continue;
              if (eachChild is mshtml.IHTMLStyleElement)
                continue;

              queue.Enqueue(eachChild);
            }
          }
        }
      }
      catch (Exception ex)
      {
        MessageBox.Show(ex.Message);
      }
    }
    #endregion
    #region Load and Save Data
    static string TextToHighlight = DefaultTextToHighlight;
    public static string RegData = "Software\\MyIEExtension";

    [DllImport("ieframe.dll")]
    public static extern int IEGetWriteableHKCU(ref IntPtr phKey);

    private static void SaveOptions()
    {
      // In IE 7,8,9,(desktop)10 tabs run in Protected Mode
      // which prohibits writes to HKLM, HKCU.
      // Must ask IE for "Writable" registry section pointer
      // which will be something like HKU/S-1-7***/Software/AppDataLow/
      // In "metro" IE 10 mode, tabs run in "Enhanced Protected Mode"
      // where BHOs are not allowed to run, except in edge cases.
      // see http://blogs.msdn.com/b/ieinternals/archive/2012/03/23/understanding-ie10-enhanced-protected-mode-network-security-addons-cookies-metro-desktop.aspx
      IntPtr phKey = new IntPtr();
      var answer = IEGetWriteableHKCU(ref phKey);
      RegistryKey writeable_registry = RegistryKey.FromHandle(
          new Microsoft.Win32.SafeHandles.SafeRegistryHandle(phKey, true)
      );
      RegistryKey registryKey = writeable_registry.OpenSubKey(RegData, true);

      if (registryKey == null)
        registryKey = writeable_registry.CreateSubKey(RegData);
      registryKey.SetValue("Data", TextToHighlight);

      writeable_registry.Close();
    }
    private static void LoadOptions()
    {
      // In IE 7,8,9,(desktop)10 tabs run in Protected Mode
      // which prohibits writes to HKLM, HKCU.
      // Must ask IE for "Writable" registry section pointer
      // which will be something like HKU/S-1-7***/Software/AppDataLow/
      // In "metro" IE 10 mode, tabs run in "Enhanced Protected Mode"
      // where BHOs are not allowed to run, except in edge cases.
      // see http://blogs.msdn.com/b/ieinternals/archive/2012/03/23/understanding-ie10-enhanced-protected-mode-network-security-addons-cookies-metro-desktop.aspx
      IntPtr phKey = new IntPtr();
      var answer = IEGetWriteableHKCU(ref phKey);
      RegistryKey writeable_registry = RegistryKey.FromHandle(
          new Microsoft.Win32.SafeHandles.SafeRegistryHandle(phKey, true)
      );
      RegistryKey registryKey = writeable_registry.OpenSubKey(RegData, true);

      if (registryKey == null)
        registryKey = writeable_registry.CreateSubKey(RegData);
      registryKey.SetValue("Data", TextToHighlight);

      if (registryKey == null)
      {
        TextToHighlight = DefaultTextToHighlight;
      }
      else
      {
        TextToHighlight = (string)registryKey.GetValue("Data");
      }
      writeable_registry.Close();
    }
    #endregion

    [Guid("6D5140C1-7436-11CE-8034-00AA006009FA")]
    [InterfaceType(1)]
    public interface IServiceProvider
    {
      int QueryService(ref Guid guidService, ref Guid riid, out IntPtr ppvObject);
    }

    #region Implementation of IObjectWithSite
    int IObjectWithSite.SetSite(object site)
    {
      this.site = site;

      if (site != null)
      {
        LoadOptions();

        var serviceProv = (IServiceProvider)this.site;
        var guidIWebBrowserApp = Marshal.GenerateGuidForType(typeof(IWebBrowserApp)); // new Guid("0002DF05-0000-0000-C000-000000000046");
        var guidIWebBrowser2 = Marshal.GenerateGuidForType(typeof(IWebBrowser2)); // new Guid("D30C1661-CDAF-11D0-8A3E-00C04FC9E26E");
        IntPtr intPtr;
        serviceProv.QueryService(ref guidIWebBrowserApp, ref guidIWebBrowser2, out intPtr);

        browser = (IWebBrowser2)Marshal.GetObjectForIUnknown(intPtr);

        ((DWebBrowserEvents2_Event)browser).DocumentComplete +=
            new DWebBrowserEvents2_DocumentCompleteEventHandler(this.OnDocumentComplete);
      }
      else
      {
        ((DWebBrowserEvents2_Event)browser).DocumentComplete -=
            new DWebBrowserEvents2_DocumentCompleteEventHandler(this.OnDocumentComplete);
        browser = null;
      }
      return 0;
    }
    int IObjectWithSite.GetSite(ref Guid guid, out IntPtr ppvSite)
    {
      IntPtr punk = Marshal.GetIUnknownForObject(browser);
      int hr = Marshal.QueryInterface(punk, ref guid, out ppvSite);
      Marshal.Release(punk);
      return hr;
    }
    #endregion
    #region Implementation of IOleCommandTarget
    int IOleCommandTarget.QueryStatus(IntPtr pguidCmdGroup, uint cCmds, ref OLECMD prgCmds, IntPtr pCmdText)
    {
      return 0;
    }
    int IOleCommandTarget.Exec(IntPtr pguidCmdGroup, uint nCmdID, uint nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
    {
      try
      {
        // Accessing the document from the command-bar.
        var document = browser.Document as IHTMLDocument2;
        var window = document.parentWindow;
        var result = window.execScript(@"alert('You will now be allowed to configure the text to highlight...');");

        var form = new HighlighterOptionsForm();
        form.InputText = TextToHighlight;
        if (form.ShowDialog() != DialogResult.Cancel)
        {
          TextToHighlight = form.InputText;
          SaveOptions();
        }
      }
      catch (Exception ex)
      {
        MessageBox.Show(ex.Message);
      }

      return 0;
    }
    #endregion

    #region Registering with regasm
    public static string RegBHO = "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Browser Helper Objects";
    public static string RegCmd = "Software\\Microsoft\\Internet Explorer\\Extensions";

    [ComRegisterFunction]
    public static void RegisterBHO(Type type)
    {
      string guid = type.GUID.ToString("B");

      // BHO
      {
        RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(RegBHO, true);
        if (registryKey == null)
          registryKey = Registry.LocalMachine.CreateSubKey(RegBHO);
        RegistryKey key = registryKey.OpenSubKey(guid);
        if (key == null)
          key = registryKey.CreateSubKey(guid);
        key.SetValue("Alright", 1);
        registryKey.Close();
        key.Close();
      }

      // Command
      {
        RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(RegCmd, true);
        if (registryKey == null)
          registryKey = Registry.LocalMachine.CreateSubKey(RegCmd);
        RegistryKey key = registryKey.OpenSubKey(guid);
        if (key == null)
          key = registryKey.CreateSubKey(guid);
        key.SetValue("ButtonText", "Highlighter options");
        key.SetValue("CLSID", "{1FBA04EE-3024-11d2-8F1F-0000F87ABD16}");
        key.SetValue("ClsidExtension", guid);
        key.SetValue("Icon", "");
        key.SetValue("HotIcon", "");
        key.SetValue("Default Visible", "Yes");
        key.SetValue("MenuText", "&Highlighter options");
        key.SetValue("ToolTip", "Highlighter options");
        //key.SetValue("KeyPath", "no");
        registryKey.Close();
        key.Close();
      }
    }

    [ComUnregisterFunction]
    public static void UnregisterBHO(Type type)
    {
      string guid = type.GUID.ToString("B");
      // BHO
      {
        RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(RegBHO, true);
        if (registryKey != null)
          registryKey.DeleteSubKey(guid, false);
      }
      // Command
      {
        RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(RegCmd, true);
        if (registryKey != null)
          registryKey.DeleteSubKey(guid, false);
      }
    }
    #endregion
  }
}

- user285594

---

不确定是否有效，但我找到了这个链接：http://www.add-in-express.com/programming-internet-explorer/project-template.php - Gurgadurgen

请查看我的编辑。您可以看到屏幕截图显示我们的BHO在IE11中，但页面没有显示任何包含“浏览器”文本的高亮，这是我的问题。 - user285594

也许你可以把代码发布在这里，这样别人就可以帮助你，而不是让我们试图从截图中阅读代码或让我们下载它。 - Gurgadurgen

请查看我的编辑部分，其中包含IEAddon.cs的代码（如果有人需要，整个项目也可在该下载链接中获得） - user285594

正如您在代码中所看到的，当页面加载时，在页面上有一个文本“browser”，它将用黄色包裹并显示手的图标，但实际情况并非如此。正如您在图片中所看到的，BHO已在IE11中加载。 - user285594

Answer 1

我正在尝试做同样的事情- 我刚刚注意到在构建日志中有一个错误。

“将程序集添加到缓存时失败：尝试安装一个没有强名称的程序集。”

因此，我添加了 *.snk 并且突出显示已工作（使用 IE11 和 x64），但是 “高亮选项” 菜单项无法正常工作。

可以查看 这里 获取IEExtension示例。

- qhor

---

似乎在重新构建后，“高亮选项”也正常工作了。 - qhor

哇，你是怎么做到的，请分享一下，我们一起来做吧。你在聊天室里吗？ - user285594

只需尝试将标记添加到程序集 - 项目选项->签名选项卡->勾选“签署程序集”->在选择框中选择“新建”->取消选中“使用密码保护”-就这样。然后重新构建 - gacutil现在将正常工作（检查构建输出 - 它应该说“程序集已成功添加到缓存”）。 - qhor

请确认您是否使用了此链接：https://www.dropbox.com/s/60kg212vkjb7yud/ClassLibrary2.rar，并且没有做任何更改，它在IE11上能够正常工作吗？您能否分享一张屏幕截图来证明它是否工作？我已经尝试了近一个月仍然无法使其工作，非常沮丧。 - user285594

IEExtension - 这在我的机器上可以工作。你应该更加小心命名空间和程序集名称。 - qhor

Answer 2

尽管您的IE11在64位Windows上运行，但默认的IE实例是32位版本。需要启用增强保护模式，以便IE11以64位模式运行。

另一个技巧是对于32位IE，您必须注册32位扩展，反之亦然。我的建议如下：

- 确保您的IE11模式为32位或64位 - 仅注册32位或64位扩展，如果都注册了，则扩展也无法工作。您必须仔细检查注册表以删除不必要的扩展。

- SmartekWorks

Answer 3

我热情地建议您阅读2002年Pavel Zolnikov发布的这篇文章！

http://www.codeproject.com/Articles/2219/Extending-Explorer-with-Band-Objects-using-NET-and

基于使用Band对象，使用.Net 2.0编译。正如您在评论中所读到的那样，它可以很好地在IE 11上以及Windows 7和Windows 10上运行。提供了教程源代码，并且可以在Visual Studio 2013中打开和编译。享受吧！

- Marc Charmois

---

谢谢，请不要引用链接到链接。请制作一个完整的工作项目，并标注步骤1、2、3，以便帮助其他研究人员。从一个链接到另一个链接非常令人困惑。 - user285594