PROGRESSBAR DANS TLISTVIEW

procedure TForm1.BitBtn1Click(Sender: TObject);
var
  r: TRect;
  pb: TProgressBar;
begin
  Listview1.Columns.Add.Width := 100;
  Listview1.Columns.Add.Width := 200;
  Listview1.ViewStyle         := vsReport;
  Listview1.Items.Add.Caption := 'Text';

  r := Listview1.Items[0].DisplayRect(drBounds);
  r.Left  := r.Left + Listview1.columns[0].Width;
  r.Right := r.Left + Listview1.columns[1].Width;

  pb := TProgressBar.Create(Self);
  pb.Parent := Listview1;
  pb.BoundsRect := r;
  pb.Position := 30;
  Listview1.Items[0].Data := pb;
end;



procedure TForm1.BitBtn2Click(Sender: TObject);
var
  pb: TProgressBar;
begin
  Listview1.Items[0].Data := pb;
  pb := TProgressBar(Listview1.Items[0].Data);
  pb.StepIt; 
end;