procedure DeleteIECache(httpStr: string); // 清理IE缓存,IE.cookies
var
lpEntryInfo: PInternetCacheEntryInfo;
hCacheDir: LongWord;
dwEntrySize: LongWord;
cachefile: string;
begin
dwEntrySize := 0;
FindFirstUrlCacheEntry(nil, TInternetCacheEntryInfo(nil^), dwEntrySize);
GetMem(lpEntryInfo, dwEntrySize);
if dwEntrySize > 0 then
lpEntryInfo^.dwStructSize := dwEntrySize;
hCacheDir := FindFirstUrlCacheEntry(nil, lpEntryInfo^, dwEntrySize);
if hCacheDir <> 0 then
begin
repeat
if (lpEntryInfo^.CacheEntryType) and (NORMAL_CACHE_ENTRY) = NORMAL_CACHE_ENTRY then
cachefile := pchar(lpEntryInfo^.lpszSourceUrlName);
if pos(httpStr, cachefile) > 0 then //清除特定网站的cookies.例如baidu.com
DeleteUrlCacheEntry(pchar(cachefile)); //执行删除操作
FreeMem(lpEntryInfo, dwEntrySize);
dwEntrySize := 0;
FindNextUrlCacheEntry(hCacheDir, TInternetCacheEntryInfo(nil^), dwEntrySize);
GetMem(lpEntryInfo, dwEntrySize);
if dwEntrySize > 0 then
lpEntryInfo^.dwStructSize := dwEntrySize;
until not FindNextUrlCacheEntry(hCacheDir, lpEntryInfo^, dwEntrySize);
end;
FreeMem(lpEntryInfo, dwEntrySize);
FindCloseUrlCache(hCacheDir);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
DeleteIECache(Edit1.Text);
end;