C# 我的Internet Explorer加载项不工作
我已经编写了示例IE插件(基于在互联网上找到的示例)。此插件生成日志文件,并将OnDocumentComplete和OnBeforeNavigate2事件中的信息写入其中。 不幸的是,这不起作用。我成功地在IE中安装了这个插件,它是可见的——但正如我所说,它不工作(信息没有写入日志文件) 下面是这个插件的代码:C# 我的Internet Explorer加载项不工作,c#,.net,internet-explorer,add-on,ieaddon,C#,.net,Internet Explorer,Add On,Ieaddon,我已经编写了示例IE插件(基于在互联网上找到的示例)。此插件生成日志文件,并将OnDocumentComplete和OnBeforeNavigate2事件中的信息写入其中。 不幸的是,这不起作用。我成功地在IE中安装了这个插件,它是可见的——但正如我所说,它不工作(信息没有写入日志文件) 下面是这个插件的代码: using System; using System.Collections.Generic; using System.Text; using SHDocVw; using mshtm
using System;
using System.Collections.Generic;
using System.Text;
using SHDocVw;
using mshtml;
using System.IO;
using Microsoft.Win32;
using System.Runtime.InteropServices;
using System.Security.AccessControl;
namespace BHO_SampleApp
{
[ComVisible(true),
Guid("8a194578-81ea-4850-9911-13ba2d71efbd"),
ClassInterface(ClassInterfaceType.None)
]
public class BHO:IObjectWithSite
{
WebBrowser webBrowser;
public void OnDocumentComplete(object pDisp, ref object URL)
{
using (StreamWriter sw = new StreamWriter(@"C:\log.txt"))
{
sw.WriteLine(String.Format("site: {0}, {1}", URL, DateTime.Now.ToString("dd-MM-yyyy HH:mm:ss")));
}
}
public void OnBeforeNavigate2(object pDisp, ref object URL, ref object Flags, ref object TargetFrameName, ref object PostData, ref object Headers, ref bool Cancel)
{
using (StreamWriter sw = new StreamWriter(@"C:\log.txt"))
{
sw.WriteLine(String.Format("site: {0}, {1}", URL, DateTime.Now.ToString("dd-MM-yyyy HH:mm:ss")));
}
}
#region BHO Internal Functions
public static string BHOKEYNAME = "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Browser Helper Objects";
[ComRegisterFunction]
public static void RegisterBHO(Type type)
{
RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(BHOKEYNAME, true);
if (registryKey == null)
registryKey = Registry.LocalMachine.CreateSubKey(BHOKEYNAME);
string guid = type.GUID.ToString("B");
RegistryKey ourKey = registryKey.OpenSubKey(guid);
if (ourKey == null)
ourKey = registryKey.CreateSubKey(guid);
ourKey.SetValue("Alright", 1);
registryKey.Close();
ourKey.Close();
}
[ComUnregisterFunction]
public static void UnregisterBHO(Type type)
{
RegistryKey registryKey = Registry.LocalMachine.OpenSubKey(BHOKEYNAME, true);
string guid = type.GUID.ToString("B");
if (registryKey != null)
registryKey.DeleteSubKey(guid, false);
}
public int SetSite(object site)
{
if (site != null)
{
webBrowser = (WebBrowser)site;
webBrowser.DocumentComplete += new DWebBrowserEvents2_DocumentCompleteEventHandler(this.OnDocumentComplete);
webBrowser.BeforeNavigate2+=new DWebBrowserEvents2_BeforeNavigate2EventHandler(this.OnBeforeNavigate2);
}
else
{
webBrowser.DocumentComplete -= new DWebBrowserEvents2_DocumentCompleteEventHandler(this.OnDocumentComplete);
webBrowser.BeforeNavigate2 -= new DWebBrowserEvents2_BeforeNavigate2EventHandler(this.OnBeforeNavigate2);
webBrowser = null;
}
return 0;
}
public int GetSite(ref Guid guid, out IntPtr ppvSite)
{
IntPtr punk = Marshal.GetIUnknownForObject(webBrowser);
int hr = Marshal.QueryInterface(punk, ref guid, out ppvSite);
Marshal.Release(punk);
return hr;
}
#endregion
}
[
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, out IntPtr ppvSite);
}
}
此加载项有什么问题?如果浏览器处于保护模式(默认),则加载项无权写入c:\log.txt。尝试禁用保护模式以检查它是否开始工作。在这里您可以找到一个工作片段。代码有很大的错误。你做了什么来调试它?你确定你的日志记录语句是成功的吗?我没有看到try-catch语句,所以它们很可能就是失败了。请不要以这种方式写入注册表。请阅读此内容-