unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls,
  Forms, Dialogs, CommCtrl, ComCtrls, StdCtrls;

type
  TMyTrackBar = class(TTrackBar)
    procedure CreateParams(var Params: TCreateParams); override;
  end;

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  MyTrackbar : TMyTrackbar;

implementation
{$R *.DFM}

procedure TMyTrackBar.CreateParams(var Params: TCreateParams);
begin
  inherited;
  Params.Style := Params.Style and not TBS_ENABLESELRANGE;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  MyTrackBar := TMyTrackbar.Create(Form1);
  MyTrackbar.Parent := Form1;
  MyTrackbar.Left := 100;
  MyTrackbar.Top := 100;
  MyTrackbar.Width := 150;
  MyTrackbar.Height := 45;
  MyTrackBar.Visible := true;
end;

end.