delphi清除IE临时文件,历史记录


本文整理自网络,侵删。

 清除Internet Explorer临时文件 在TfrmMain你必须引用WinINet单元 Uses WinINet; 然后放上一个TButton按钮命名为btnEmptyCache,加入以下代码: 

Procedure TfrmMain.btnEmptyCacheClick( Sender : TObject );
Var
lpEntryInfo : PInternetCacheEntryInfo;
hCacheDir : LongWord;
dwEntrySize : LongWord;
dwLastError : LongWord;
Begin
dwEntrySize := 0;
FindFirstUrlCacheEntry(NIL,TInternetCacheEntryInfoNIL^ ),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 ( GetLastError = ERROR_INSUFFICIENT_BUFFER ) Then Begin
GetMem( lpEntryInfo, dwEntrySize );
If ( FindNextUrlCacheEntry( hCacheDir, lpEntryInfo^,
dwEntrySize ) ) Then
DeleteUrlCacheEntry( lpEntryInfo^.lpszSourceUrlName );
FreeMem(lpEntryInfo);
End;
Until ( dwLastError = ERROR_NO_MORE_ITEMS );

End;
//清除历史纪录
type
TSTATURL = record
cbSize: DWORD;
pwcsUrl: DWORD;
pwcsTitle: DWORD;
ftLastVisited: FILETIME;
ftLastUpdated: FILETIME;
ftExpires: FILETIME;
dwFlags: DWORD;
end;

type
IEnumSTATURL = interface(IUnknown)
['{3C374A42-BAE4-11CF-BF7D-00AA006946EE}']
function Next(celt: Integer; out elt; pceltFetched: PLongint): HRESULT; stdcall;
function Skip(celt: Longint): HRESULT; stdcall;
function Reset: HResult; stdcall;
function Clone(out ppenum: IEnumSTATURL): HResult; stdcall;
function SetFilter(poszFilter: PWideChar; dwFlags: DWORD): HResult; stdcall;
end;

type
IUrlHistoryStg = interface(IUnknown)
['{3C374A41-BAE4-11CF-BF7D-00AA006946EE}']
function AddUrl(pocsUrl: PWideChar; pocsTitle: PWideChar; dwFlags: Integer): HResult; stdcall;
function DeleteUrl(pocsUrl: PWideChar; dwFlags: Integer): HResult; stdcall;
function QueryUrl(pocsUrl: PWideChar; dwFlags: Integer; var lpSTATURL: TSTATURL): HResult; stdcall;
function BindToObject(pocsUrl: PWideChar; var riid: TGUID; out ppvOut: Pointer): HResult; stdcall;
function EnumUrls(out ppenum: IEnumSTATURL): HResult; stdcall;
end;

type
IUrlHistoryStg2 = interface(IUrlHistoryStg)
['{AFA0DC11-C313-11D0-831A-00C04FD5AE38}']
function AddUrlAndNotify(pocsUrl: PWideChar; pocsTitle: PWideChar; dwFlags: Integer;
fWriteHistory: Integer; var poctNotify: Pointer;
const punkISFolder: IUnknown): HResult; stdcall;
function ClearHistory: HResult; stdcall;
end;

function ClearIEHistory:integer;
const
CLSID_CUrlHistory: TGUID = '{3C374A40-BAE4-11CF-BF7D-00AA006946EE}';
var
IEHistory:IUrlHistoryStg2;
begin
IEHistory:=CreateComObject(CLSID_CUrlHistory) as IUrlHistoryStg2;
IEHistory.ClearHistory;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
ClearIEHistory;
end;

相关阅读 >>

Delphi 用updateresource修改exe文件图标(已修正)

Delphi xe更改ttrayicon系统任务栏图标(无模糊)

Delphi实现电脑桌面壁纸更换

Delphi获取其他进程中状态栏文本的函数

Delphi 获取路径分隔符

Delphi padl 处理字符串的函数

Delphi侦测按键输入

Delphi 获取系统进程列表和进程所在路径

汇编基础知识

Delphi 输入法设置(imemode与imename)

更多相关阅读请进入《Delphi》频道 >>



打赏

取消

感谢您的支持,我会继续努力的!

扫码支持
扫码打赏,您说多少就多少

打开支付宝扫一扫,即可进行扫码打赏哦

分享从这里开始,精彩与您同在

评论

管理员已关闭评论功能...