| 首先: 在 stdafx.h中要加入： #include "atlbase.h" 设置->Link 要引入库 : Wininet.lib shlwapi.lib //在对话框的头文件中加入： 01.#include "wininet.h"
02.#include "UrlHist.h"
03.
04.#define SWEEP_BUFFER_SIZE 10000
05.
06.public:
07.
08.enum DEL_CACHE_TYPE //要删除的类型。
09.{
10.File,//表示internet临时文件
11.Cookie //表示Cookie
12.};
//以下为一些辅助函数 ( 辅助函数的具体实现参见源代码中.限于篇幅不再给出 ) 01.BOOL DeleteUrlCache(DEL_CACHE_TYPE type);
02.BOOL EmptyDirectory(LPCTSTR szPath, BOOL bDeleteDesktopIni = FALSE, BOOLbWipeIndexDat = FALSE);//清空一个目录
03.BOOL IsWindowsNT();//判断系统
04.BOOL IsWindows2k();
05.BOOL GetUserSid(PSID* ppSid);
06.void GetSidString(PSID pSid, LPTSTR szBuffer);
07.BOOL GetOldSD(HKEY hKey, LPCTSTR pszSubKey, BYTE** pSD);
08.BOOL CreateNewSD(PSID pSid, SECURITY_DESCRIPTOR* pSD, PACL* ppDacl);
09.BOOL RegSetPrivilege(HKEY hKey, LPCTSTR pszSubKey, SECURITY_DESCRIPTOR* pSD,BOOL bRecursive);
10.BOOL WipeFile(LPCTSTR szDir, LPCTSTR szFile);
//现在我们可以分别实现每项清除功能。 1、清除IE临时文件 1.TCHAR szPath[MAX_PATH];
2.DeleteUrlCache(File);
3.if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_INTERNET_CACHE, FALSE))
4.{ //得到临时目录，并清空它.
5.EmptyDirectory(szPath);
6.}
清除IE临时文件的另外一个途径是直接调用Wininet函数，请看下面用于清除IE临时文件的函数 01.BOOL DelTempFiles()
02.{
03.BOOL bResult = FALSE;
04.BOOL bDone = FALSE;
05.LPINTERNET_CACHE_ENTRY_INFO lpCacheEntry = NULL;
06.
07.DWORD dwTrySize, dwEntrySize = 4096; // start buffer size
08.HANDLE hCacheDir = NULL;
09.DWORD dwError = ERROR_INSUFFICIENT_BUFFER;
10.
11.do
12.{
13.switch (dwError)
14.{
15.// need a bigger buffer
16.case ERROR_INSUFFICIENT_BUFFER:
17.delete [] lpCacheEntry;
18.lpCacheEntry = (LPINTERNET_CACHE_ENTRY_INFO) newchar[dwEntrySize];
19.lpCacheEntry->dwStructSize = dwEntrySize;
20.dwTrySize = dwEntrySize;
21.BOOL bSuccess;
22.if (hCacheDir == NULL)
23.
24.bSuccess = (hCacheDir
25.= FindFirstUrlCacheEntry(NULL, lpCacheEntry,
26.&dwTrySize)) != NULL;
27.else
28.bSuccess = FindNextUrlCacheEntry(hCacheDir, lpCacheEntry, &dwTrySize);
29.
30.if (bSuccess)
31.dwError = ERROR_SUCCESS;
32.else
33.{
34.dwError = GetLastError();
35.dwEntrySize = dwTrySize; // use new size returned
36.}
37.break;
38.
39.// we are done
40.case ERROR_NO_MORE_ITEMS:
41.bDone = TRUE;
42.bResult = TRUE;
43.break;
44.
45.// we have got an entry
46.case ERROR_SUCCESS:
47.
48.// don''''''''''''''''t delete cookie entry
49.if (!(lpCacheEntry->CacheEntryType & COOKIE_CACHE_ENTRY))
50.
51.DeleteUrlCacheEntry(lpCacheEntry->lpszSourceUrlName);
52.
53.// get ready for next entry
54.dwTrySize = dwEntrySize;
55.if (FindNextUrlCacheEntry(hCacheDir, lpCacheEntry, &dwTrySize))
56.dwError = ERROR_SUCCESS;
57.
58.else
59.{
60.dwError = GetLastError();
61.dwEntrySize = dwTrySize; // use new size returned
62.}
63.break;
64.
65.// unknown error
66.default:
67.bDone = TRUE;
68.break;
69.}
70.
71.if (bDone)
72.{
73.delete [] lpCacheEntry;
74.if (hCacheDir)
75.FindCloseUrlCache(hCacheDir);
76.
77.}
78.} while (!bDone);
79.return bResult;
80.}
2、Cookie的清除 1.TCHAR szPath[MAX_PATH];
2.DeleteUrlCache(Cookie);
3.if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_COOKIES, FALSE))
4.{//得到目录，并清空
5.EmptyDirectory(szPath);
6.}
3、浏览器地址栏历史地址的清除 1.SHDeleteKey(HKEY_CURRENT_USER,
2._T("Software\\Microsoft\\Internet Explorer\\TypedURLs"));
4、清除表单自动完成历史记录 01.CString sKey;
02.DWORD dwRet;
03.
04.if (IsWindows2k() || IsWindowsNT())//先判断系统
05.{
06.CString sBaseKey;
07.SECURITY_DESCRIPTOR NewSD;
08.BYTE* pOldSD;
09.PACL pDacl = NULL;
10.PSID pSid = NULL;
11.TCHAR szSid[256];
12.if (GetUserSid(&pSid))
13.{
14.//get the hiden key name
15.GetSidString(pSid, szSid);
16.
17.sKey = _T("Software\\Microsoft\\Protected Storage System Provider\\");
18.sKey += szSid;
19.
20.//get old SD
21.sBaseKey = sKey;
22.GetOldSD(HKEY_CURRENT_USER, sBaseKey, &pOldSD);
23.
24.//set new SD and then clear
25.if (CreateNewSD(pSid, &NewSD, &pDacl))
26.{
27.RegSetPrivilege(HKEY_CURRENT_USER, sKey, &NewSD, FALSE);
28.
29.sKey += _T("\\Data");
30.RegSetPrivilege(HKEY_CURRENT_USER, sKey, &NewSD, FALSE);
31.
32.sKey += _T("\\e161255a-37c3-11d2-bcaa-00c04fd929db");
33.RegSetPrivilege(HKEY_CURRENT_USER, sKey, &NewSD, TRUE);
34.
35.dwRet = SHDeleteKey(HKEY_CURRENT_USER, sKey);
36.}
37.
38.if (pDacl != NULL)
39.HeapFree(GetProcessHeap(), 0, pDacl);
40.
41.//restore old SD
42.if (pOldSD)
43.{
44.RegSetPrivilege(HKEY_CURRENT_USER, sBaseKey,
45.(SECURITY_DESCRIPTOR*)pOldSD, FALSE);
46.delete pOldSD;
47.}
48.}
49.if (pSid)
50.HeapFree(GetProcessHeap(), 0, pSid);
51.}
52.
53.//win9x
54.DWORD dwSize = MAX_PATH;
55.TCHAR szUserName[MAX_PATH];
56.GetUserName(szUserName, &dwSize);
57.
58.sKey = _T("Software\\Microsoft\\Protected Storage System Provider\\");
59.sKey += szUserName;
60.sKey += _T("\\Data\\e161255a-37c3-11d2-bcaa-00c04fd929db");
61.dwRet = SHDeleteKey(HKEY_LOCAL_MACHINE, sKey);
5、清除自动密码历史记录 1.SHDeleteKey(HKEY_CURRENT_USER,
2._T("Software\\Microsoft\\Internet Explorer\\IntelliForms"));
6、清收藏夹中的内容 1.TCHAR szPath[MAX_PATH];
2.if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_FAVORITES, FALSE))
3.{ //得到目录，并清空
4.EmptyDirectory(szPath);
5.}
7、清RAS自动拨号历史记录 1.SHDeleteKey(HKEY_CURRENT_USER,
2._T("Software\\Microsoft\\RAS Autodial\\Addresses"));
8、清系统临时文件夹 1.TCHAR szPath[MAX_PATH];
2.if (GetTempPath(MAX_PATH, szPath))//得到系统临时目录
3.{
4.EmptyDirectory(szPath, TRUE);
5.}
9、清空回收站 1.SHEmptyRecycleBin(NULL, NULL,
2.
3.SHERB_NOCONFIRMATION | SHERB_NOPROGRESSUI | SHERB_NOSOUND);
10、清除"运行"中的自动匹配历史记录 1.SHDeleteKey(HKEY_CURRENT_USER,
2._T("Software\\Microsoft\\Windows\\
3.CurrentVersion\\Explorer\\RunMRU"));
11、清"文档"中的历史记录 1.TCHAR szPath[MAX_PATH];
2.if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_RECENT, FALSE))
3.{
4.EmptyDirectory(szPath);
5.}
6.SHDeleteKey(HKEY_CURRENT_USER,
7._T("Software\\Microsoft\\Windows\\CurrentVersion
8.\\Explorer\\RecentDocs"));
12、清除上次登陆用户记录 01.SHDeleteValue(HKEY_CURRENT_USER,
02._T("Software\\Microsoft\\Windows NT\\
03.CurrentVersion\\Winlogon"),
04._T("DefaultUserName"));
05.SHDeleteValue(HKEY_CURRENT_USER,
06._T("Software\\Microsoft\\Windows NT\\
07.CurrentVersion\\Winlogon"),
08._T("AltDefaultUserName"));
09.SHDeleteValue(HKEY_LOCAL_MACHINE,
10._T("Software\\Microsoft\\Windows\\
11.CurrentVersion\\Winlogon"),
12._T("DefaultUserName"));
13、清除"查找文件"自动匹配历史记录 01.SHDeleteKey(HKEY_CURRENT_USER,
02._T("Software\\Microsoft\\Windows\\
03.CurrentVersion\\Explorer\\Doc Find Spec
04.MRU"));
05.SHDeleteKey(HKEY_CURRENT_USER,
06._T("Software\\Microsoft\\Internet Explorer
07.\\Explorer Bars\\{C4EE31F3-4768-11D2-BE5C-00A0C9A83DA1}
08.\\ContainingTextMRU"));
09.SHDeleteKey(HKEY_CURRENT_USER,
10._T("Software\\Microsoft\\Internet Explorer
11.\\Explorer Bars\\{C4EE31F3-4768-11D2-BE5C-00A0C9A83DA1}
12.\\FilesNamedMRU"));
14、清除"查找计算机"自动匹配历史记录 1.SHDeleteKey(HKEY_CURRENT_USER,
2._T("Software\\Microsoft\\Windows\\CurrentVersion
3.\\Explorer\\FindComputerMRU"));
4.SHDeleteKey(HKEY_CURRENT_USER,
5._T("Software\\Microsoft\\Internet Explorer\\Explorer Bars
6.\\{C4EE31F3-4768-11D2-BE5C-00A0C9A83DA1}
7.\\ComputerNameMRU"));
15、清除网络联接历史记录 1.TCHAR szPath[MAX_PATH];
2.if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_NETHOOD, FALSE))
3.{ //得到目录，并清空
4.EmptyDirectory(szPath);
5.}
16、清远程登录历史记录 01.CString sKey;
02.for (int i=1; i<=8; i++)
03.{
04.sKey.Format(_T("Machine%d"), i);
05.SHDeleteValue(HKEY_CURRENT_USER,
06._T("Software\\Microsoft\\Telnet"), sKey);
07.
08.sKey.Format(_T("Service%d"), i);
09.SHDeleteValue(HKEY_CURRENT_USER,
10._T("Software\\Microsoft\\Telnet"), sKey);
11.
12.sKey.Format(_T("TermType%d"), i);
13.SHDeleteValue(HKEY_CURRENT_USER,
14._T("Software\\Microsoft\\Telnet"), sKey);
15.}
16.SHDeleteValue(HKEY_CURRENT_USER,
17._T("Software\\Microsoft\\Telnet"), _T("LastMachine"));
18.SHDeleteValue(HKEY_CURRENT_USER,
19._T("Software\\Microsoft\\Telnet"), _T("LastService"));
20.SHDeleteValue(HKEY_CURRENT_USER,
21._T("Software\\Microsoft\\Telnet"), _T("LastTermType"));
17、清浏览网址历史记录 下面这个函数可以用于清除网址历史记录 01.#include "SHLGUID.H"
02.HRESULT ClearHistory()
03.{
04.HRESULT hr;
05.CoInitialize(NULL);
06.{
07.IUrlHistoryStg2* pUrlHistoryStg2 = NULL;
08.hr= CoCreateInstance(CLSID_CUrlHistory,NULL,1, IID_IUrlHistoryStg2,(void**)&pUrlHistoryStg2);
09.if (SUCCEEDED(hr))
10.{
11.hr = pUrlHistoryStg2->ClearHistory();
12.pUrlHistoryStg2->Release();
13.}
14.}
15.CoUninitialize();
16.return hr;
17.}
// 如果上面代码不能清 // 则有下面的，不完美，但能工作. 01.TCHAR szPath[MAX_PATH];
02.GetWindowsDirectory(szPath, MAX_PATH);
03._tcscat(szPath, _T("\\History"));
04.EmptyDirectory(szPath, FALSE, TRUE);
05.
06.if (SHGetSpecialFolderPath(NULL, szPath, CSIDL_HISTORY, FALSE))
07.{
08.EmptyDirectory(szPath, FALSE, TRUE);
09.}
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