删除历史记录
procedure DelHistory;
var
lpEntryInfo: PInternetCacheEntryInfo;
hCacheDir: LongWord ;
dwEntrySize, dwLastError: LongWord;
begin
dwEntrySize := 0;
FindFirstUrlCacheEntry(nil, TInternetCacheEntryInfo(nil^), dwEntrySize);
GetMem(lpEntryInfo, dwEntrySize);
hCacheDir := FindFirstUrlCacheEntry(nil, lpEntryInfo^, dwEntrySize);
if hCacheDir <> 0 then
DeleteUrlCacheEntry(lpEntryInfo^.lpszSourceUrlName);
FreeMem(lpEntryInfo);
repeat
dwEntrySize := 0;
FindNextUrlCacheEntry(hCacheDir, TInternetCacheEntryInfo(nil^),
dwEntrySize);
dwLastError := GetLastError();
if dwLastError = ERROR_INSUFFICIENT_BUFFER then //如果成功
begin
GetMem(lpEntryInfo, dwEntrySize); {分配dwEntrySize字节的内存}
if FindNextUrlCacheEntry(hCacheDir, lpEntryInfo^, dwEntrySize) then
DeleteUrlCacheEntry(lpEntryInfo^.lpszSourceUrlName);
FreeMem(lpEntryInfo);
end;
until (dwLastError = ERROR_NO_MORE_ITEMS);
end;
procedure DelRegCache;
var
reg:TRegistry;
begin
reg:=Tregistry.create;
reg.RootKey:=HKEY_CURRENT_USER;
reg.DeleteKey('Software/Microsoft/Internet Explorer/TypedURLs');
reg.Free;
end;
function GetCookiesFolder:string;
var
pidl
ItemIDList;
buffer:array [ 0..255 ] of char ;
begin
SHGetSpecialFolderLocation(
application.Handle , CSIDL_COOKIES, pidl);
SHGetPathFromIDList(pidl, buffer);
result:=strpas(buffer);
end;
function ShellDeleteFile(sFileName: string): Boolean;
var
FOS: TSHFileOpStruct;
begin
FillChar(FOS, SizeOf(FOS), 0); {记录清零}
with FOS do
begin
wFunc := FO_DELETE;//删除
pFrom := PChar(sFileName);
fFlags := FOF_NOCONFIRMATION;
end;
Result := (SHFileOperation(FOS) = 0);
end;
procedure DelCookie;
var
dir:string;
begin
InternetSetOption(nil, INTERNET_OPTION_END_BROWSER_SESSION, nil, 0);
dir:=GetCookiesFolder;
ShellDeleteFile(dir+'/*.txt');
end;