清空internet临时文件夹Temporary Internet Files

来源：互联网发布：拍a发b淘宝查的到吗编辑：程序博客网时间：2024/05/23 01:24

在XP平台上,直接调用DeleteFile()函数是不能删除临时文件夹里面的文件的!需要调用FindFirstUrlCacheEntry()和FindNextUrlCacheEntry()查找Internet Cache的入口,获取缓存文件夹里文件的信息,然后调用DeleteUrlCacheEntry()删除指定文件名的缓存文件;

添加头文件:wininet.h

添加引入库: Wininet.lib 和 shlwapi.lib

代码如下:

BOOL DeleteTempFile()
{
    BOOL bRet = FALSE;
    HANDLE hEntry;
    LPINTERNET_CACHE_ENTRY_INFO lpCacheEntry = NULL;
    DWORD dwEntrySize;

    dwEntrySize = 0;
    hEntry = FindFirstUrlCacheEntry(NULL, NULL, &dwEntrySize);
    lpCacheEntry = (LPINTERNET_CACHE_ENTRY_INFO) new char[dwEntrySize];
    hEntry = (NULL, lpCacheEntry, &dwEntrySize); //从Internet cache中找到特定入口

   if (!hEntry)
      goto cleanup;

    do
     {
        if (!(lpCacheEntry->CacheEntryType & COOKIE_CACHE_ENTRY))
               DeleteUrlCacheEntry(lpCacheEntry->lpszSourceUrlName);   //删除Cache中指定的文件

       dwEntrySize = 0;
       FindNextUrlCacheEntry(hEntry, NULL, &dwEntrySize);
      delete [] lpCacheEntry;
       lpCacheEntry = (LPINTERNET_CACHE_ENTRY_INFO) new char[dwEntrySize];
     }
    while (FindNextUrlCacheEntry(hEntry, lpCacheEntry, &dwEntrySize)); //查找Internet cache的下一个入口

     bRet = TRUE;
cleanup:
     if (lpCacheEntry)
          delete [] lpCacheEntry;
     return bRet;

}