| Код | unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ShellAPI, ShlObj, ActiveX, ComCtrls, Menus;
// корзина отображает не всю информацию по удаленному элементу
// а только 6 позиций.
// в действительности этих позиций больше...
const
DETAIL_COUNT = 11;
type
TForm1 = class(TForm)
Button1: TButton;
ListView1: TListView;
PopupMenu1: TPopupMenu;
mnuRestore: TMenuItem;
procedure Button1Click(Sender: TObject);
procedure mnuRestoreClick(Sender: TObject);
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
// Функция взята из QDialogs...
function StrRetToString(PIDL: PItemIDList; StrRet: TStrRet;
Flag: String = ''): String;
var
P: PChar;
begin
case StrRet.uType of
STRRET_CSTR:
SetString(Result, StrRet.cStr, lStrLen(StrRet.cStr));
STRRET_OFFSET:
begin
P := @PIDL.mkid.abID[StrRet.uOffset - SizeOf(PIDL.mkid.cb)];
SetString(Result, P, PIDL.mkid.cb - StrRet.uOffset);
end;
STRRET_WSTR:
if Assigned(StrRet.pOleStr) then
Result := StrRet.pOleStr
else
Result := '';
end;
{ This is a hack bug fix to get around Windows Shell Controls returning
spurious "?"s in date/time detail fields }
if (Length(Result) > 1) and (Result[1] = '?') and (Result[2] in ['0'..'9']) then
Result := StringReplace(Result, '?', '', [rfReplaceAll]);
end;
// Смотрим содержимое корзины...
function ViewRecycleBin(const AHandle: THandle; LV: TListView): Boolean;
var
ppidl, Item: PItemIDList;
Desktop: IShellFolder;
RecycleBin: IShellFolder2;
RecycleBinEnum: IEnumIDList;
Fetched, I: Cardinal;
Details: TShellDetails;
Mallok: IMalloc;
TmpStr: ShortString;
begin
Result := False;
if LV = nil then Exit;
LV.Clear;
LV.Columns.Clear;
LV.ViewStyle := vsReport;
if SHGetMalloc(Mallok) = S_OK then
if SHGetSpecialFolderLocation(AHandle, CSIDL_BITBUCKET, ppidl) = S_OK then
if SHGetDesktopFolder(Desktop) = S_OK then
if Desktop.BindToObject(ppidl, nil, IID_IShellFolder2, RecycleBin) = S_OK then
if RecycleBin.EnumObjects(AHandle,
SHCONTF_FOLDERS or SHCONTF_NONFOLDERS, RecycleBinEnum) = S_OK then
begin
// Создаем колонки
for I := 0 to DETAIL_COUNT - 1 do
if RecycleBin.GetDetailsOf(nil, I, Details) = S_OK then
try
with LV.Columns.Add do
begin
Caption := StrRetToString(Item, Details.str);
Width := LV.Canvas.TextWidth(Caption) + 24;
end;
finally
Mallok.Free(Details.str.pOleStr);
end;
// Перечиляем содержимое корзины
while True do
begin
RecycleBinEnum.Next(1, Item, Fetched);
if Fetched = 0 then Break;
if RecycleBin.GetDetailsOf(Item, 0, Details) = S_OK then
begin
try
TmpStr := StrRetToString(Item, Details.str);
finally
Mallok.Free(Details.str.pOleStr);
end;
with LV.Items.Add do
begin
Caption := TmpStr;
for I := 1 to DETAIL_COUNT - 1 do
if RecycleBin.GetDetailsOf(Item, I, Details) = S_OK then
try
SubItems.Add(StrRetToString(Item, Details.str));
finally
Mallok.Free(Details.str.pOleStr);
end;
end;
end;
end;
Result := True;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
ViewRecycleBin(Handle, ListView1);
end;
end. |
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