[更新] 我正在更新此答案，以便在 Windows 10 x64 中与 Visual Studio 2017 社区 一起使用 Internet Explorer 11。
此答案的先前版本（适用于 Internet Explorer 8，在 Windows 7 x64 和 Visual Studio 2010 中）位于此答案的底部。
创建一个正常工作的 Internet Explorer 11 插件
我正在使用 Visual Studio 2017 Community、C#、.Net Framework 4.6.1，因此其中一些步骤可能会略有不同给你。
您需要以管理员身份打开 Visual Studio 来构建解决方案，以便构建后脚本可以注册 BHO（需要注册表访问权限）。
首先创建一个类库。
我打电话给我的InternetExplorerExtension。
将这些引用添加到项目中：
- Interop.SHDocVw：COM 选项卡/搜索
"Microsoft Internet Controls"
- Microsoft.mshtml：“程序集”选项卡/搜索
"Microsoft.mshtml"
注意： 不知何故，MSHTML 没有在我的系统中注册，即使我可以在“添加引用”窗口中找到。这在构建时导致错误：
找不到类型库“MSHTML”的包装程序集
可以在http://techninotes.blogspot.com/2016/08/fixing-cannot-find-wrapper-assembly-for.html 找到修复程序
或者，您可以运行此批处理脚本：
"%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\Common7\Tools\VsDevCmd.bat"
cd "%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\Common7\IDE\PublicAssemblies"
regasm Microsoft.mshtml.dll
gacutil /i Microsoft.mshtml.dll
创建以下文件：
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
{
// @Eric Stob: Thanks for this hint!
// This was used to prevent this method being executed more than once in IE8... but now it seems to not work anymore.
//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
}
}
Interop.cs
using System;
using System.Runtime.InteropServices;
namespace InternetExplorerExtension
{
[ComVisible(true)]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("FC4801A3-2BA9-11CF-A229-00AA003D7352")]
public interface IObjectWithSite
{
[PreserveSig]
int SetSite([MarshalAs(UnmanagedType.IUnknown)]object site);
[PreserveSig]
int GetSite(ref Guid guid, [MarshalAs(UnmanagedType.IUnknown)]out IntPtr ppvSite);
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct OLECMDTEXT
{
public uint cmdtextf;
public uint cwActual;
public uint cwBuf;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 100)]
public char rgwz;
}
[StructLayout(LayoutKind.Sequential)]
public struct OLECMD
{
public uint cmdID;
public uint cmdf;
}
[ComImport(), ComVisible(true),
Guid("B722BCCB-4E68-101B-A2BC-00AA00404770"),
InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
public interface IOleCommandTarget
{
[return: MarshalAs(UnmanagedType.I4)]
[PreserveSig]
int QueryStatus(
[In] IntPtr pguidCmdGroup,
[In, MarshalAs(UnmanagedType.U4)] uint cCmds,
[In, Out, MarshalAs(UnmanagedType.Struct)] ref OLECMD prgCmds,
//This parameter must be IntPtr, as it can be null
[In, Out] IntPtr pCmdText);
[return: MarshalAs(UnmanagedType.I4)]
[PreserveSig]
int Exec(
//[In] ref Guid pguidCmdGroup,
//have to be IntPtr, since null values are unacceptable
//and null is used as default group!
[In] IntPtr pguidCmdGroup,
[In, MarshalAs(UnmanagedType.U4)] uint nCmdID,
[In, MarshalAs(UnmanagedType.U4)] uint nCmdexecopt,
[In] IntPtr pvaIn,
[In, Out] IntPtr pvaOut);
}
}
最后是一个表单，我们将使用它来配置选项。在此表单中放置 TextBox 和 Ok Button。将按钮的 DialogResult 设置为 Ok。将此代码放在表单代码中：
using System.Windows.Forms;
namespace InternetExplorerExtension
{
public partial class HighlighterOptionsForm : Form
{
public HighlighterOptionsForm()
{
InitializeComponent();
}
public string InputText
{
get { return this.textBox1.Text; }
set { this.textBox1.Text = value; }
}
}
}
在项目属性中，执行以下操作：
注意：虽然我的电脑是 x64，但我使用了非 x64 的路径 gacutil.exe 并且它有效... x64 专用的路径是：
C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6.1 Tools\x64\gacutil.exe
64 位 IE 需要 64 位编译和 64 位注册的 BHO。虽然我只能使用 32 位 IE11 进行调试，但 32 位注册扩展也可以通过运行 64 位 IE11 来工作。
这个答案似乎有一些关于这个的附加信息：https://stackoverflow.com/a/23004613/195417
如果需要，可以使用 64bit regasm：
%windir%\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe
此插件的工作原理
我没有更改插件的行为...请查看下面的 IE8 部分进行说明。
## IE8 的上一个答案
伙计……这是一项艰巨的工作！
我很好奇如何做到这一点，所以我自己做了。
首先...功劳不全是我的。这是我在这些网站上找到的内容的汇编：
当然，我希望我的答案具有您所要求的功能：
- DOM 遍历以找到某些东西；
- 一个显示窗口的按钮（在我的例子中是设置）
- 保留配置（我将使用注册表）
- 最后执行javascript。
我将逐步描述它，我是如何在 Windows 7 x64 中使用 Internet Explorer 8 来实现它的...请注意，我无法测试在其他配置中。希望你理解=)
创建一个正常工作的 Internet Explorer 8 插件
我正在使用 Visual Studio 2010、C# 4、.Net Framework 4，因此其中一些步骤对您来说可能略有不同.
创建了一个类库。我打电话给我的InternetExplorerExtension。
将这些引用添加到项目中：
- Interop.SHDocVw
- Microsoft.mshtml
注意：这些引用可能在每台计算机的不同位置。
这是我在 csproj 中的参考部分包含的内容：
<Reference Include="Interop.SHDocVw, Version=1.1.0.0, Culture=neutral, PublicKeyToken=90ba9c70f846762e, processorArchitecture=MSIL">
<SpecificVersion>False</SpecificVersion>
<EmbedInteropTypes>True</EmbedInteropTypes>
<HintPath>C:\Program Files (x86)\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies\Interop.SHDocVw.dll</HintPath>
</Reference>
<Reference Include="Microsoft.CSharp" />
<Reference Include="Microsoft.mshtml, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
<EmbedInteropTypes>True</EmbedInteropTypes>
</Reference>
<Reference Include="System" />
<Reference Include="System.Data" />
<Reference Include="System.Drawing" />
<Reference Include="System.Windows.Forms" />
<Reference Include="System.Xml" />
以与更新的 IE11 文件相同的方式创建文件。
IEAddon.cs
您可以在 IE11 版本中取消注释以下行：
...
// @Eric Stob: Thanks for this hint!
// This was used to prevent this method being executed more than once in IE8... but now it seems to not work anymore.
if (pDisp != this.site)
return;
...
Interop.cs
同IE11版本。
最后是一个表单，我们将使用它来配置选项。在此表单中放置 TextBox 和 Ok Button。将按钮的 DialogResult 设置为 Ok。 IE11插件的代码相同。
在项目属性中，执行以下操作：
注意：因为我的电脑是x64的，所以我的机器上gacutil可执行文件的路径里面有一个特定的x64，你的可能不一样。
64 位 IE 需要 64 位编译和 64 位注册的 BHO。使用 64 位 RegAsm.exe（通常位于 C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe）
此插件的工作原理
它遍历所有 DOM 树，替换文本，使用按钮配置，本身带有黄色背景。如果您单击泛黄的文本，它会调用动态插入页面的 javascript 函数。默认词是“浏览器”，所以它匹配了很多！
编辑： 更改要突出显示的字符串后，您必须单击URL框并按Enter ... F5不起作用，我认为是因为F5被认为是'导航'，它将需要收听导航事件（也许）。我稍后会尝试解决这个问题。
现在，该走了。我很累。
随时问问题...可能因为我要去旅行而无法回答... 3天后我回来了，但我会尝试在此期间来这里。