Вывести список файлов с иконками

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CheckBox определяет вид списка: большие иконки, список, таблица или маленькие иконки.

uses ShellAPI;

procedure UpdateFiles;
var
  sr: TSearchRec;
  li: TListItem;
  fi: TSHFileInfo;
  ext: string;
begin
  Form1.ListView1.Items.BeginUpdate;
  Form1.ListView1.Items.Clear;
  if FindFirst(Form1.DirectoryListBox1.Directory + '\*.*', faAnyFile, sr) = 0 then repeat
    if sr.Attr and faDirectory <> 0 then continue;
    li := Form1.ListView1.Items.Add;
    li.Caption := sr.Name;
    ext := LowerCase(ExtractFileExt(li.Caption));
    ShGetFileInfo(PChar('*' + ext), 0, fi, SizeOf(fi),
      SHGFI_SMALLICON or SHGFI_SYSICONINDEX or SHGFI_TYPENAME);
    li.ImageIndex := fi.iIcon;
    if sr.Size < 1024
      then li.SubItems.Add(IntToStr(sr.Size) + ' byte')
      else if sr.Size < 1024 * 1024
        then li.SubItems.Add(IntToStr(round(sr.Size / 1024)) + ' KByte')
        else li.SubItems.Add(IntToStr(round(sr.Size / (1024 * 1024))) + ' MByte');
    li.SubItems.Add(fi.szTypeName);
  until FindNext(sr) <> 0;
  FindClose(sr);
  Form1.ListView1.Items.EndUpdate;
end;

procedure TForm1.FormCreate(Sender: TObject);
var
  fi: TSHFileInfo;
  lc: TListColumn;
begin
  DriveComboBox1.DirList := DirectoryListBox1;
  with ListView1 do begin
    SmallImages := TImageList.CreateSize(16,16);
    SmallImages.Handle := ShGetFileInfo('*.*', 0, fi,
      SizeOf(fi), SHGFI_SMALLICON or SHGFI_ICON
      or SHGFI_SYSICONINDEX);
    LargeImages := TImageList.Create(nil);
    LargeImages.Handle := ShGetFileInfo('*.*', 0, fi,
      SizeOf(fi), SHGFI_LARGEICON or SHGFI_ICON
      or SHGFI_SYSICONINDEX);
    lc := Columns.Add;
    lc.Caption := 'Name';
    lc := Columns.Add;
    lc.Caption := 'Size';
    ComboBox1.Items.Add('Icons');
    ComboBox1.Items.Add('List');
    ComboBox1.Items.Add('Table');
    ComboBox1.Items.Add('SmallIcons');
    ComboBox1.ItemIndex := 0;
  end;
  UpdateFiles;
end;

procedure TForm1.DirectoryListBox1Change(Sender: TObject);
begin
  UpdateFiles;
end;

procedure TForm1.ComboBox1Click(Sender: TObject);
begin
  case ComboBox1.ItemIndex of
    0: ListView1.ViewStyle := vsIcon;
    1: ListView1.ViewStyle := vsList;
    2: ListView1.ViewStyle := vsReport;
    else ListView1.ViewStyle := vsSmallIcon;
  end;
end;