unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ExtCtrls;

type
  TMeuPanel = class(TPanel)
    procedure DblClick(Sender: TObject);
  public
    constructor Create(AOwner: TComponent); reintroduce;
    destructor Destroy; override;

    procedure Remover;
  end;

  TForm1 = class(TForm)
    Button1: TButton;
    ScrollBox1: TScrollBox;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
    topLabel: Integer;
  public
    { Public declarations }
    constructor Create(AOwner: TComponent); reintroduce;
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

{ TMeuPanel }

constructor TMeuPanel.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);

  OnDblClick := DblClick;
end;

procedure TMeuPanel.DblClick(Sender: TObject);
begin
  Remover;
end;

destructor TMeuPanel.Destroy;
begin
  Caption := 'Excluido';
  inherited;
end;

procedure TMeuPanel.Remover;
begin
  Destroy;
  //PostMessage(Handle, WM_DESTROY, 0, 0);
  //SendMessage(Handle, WM_DESTROY, 0, 0);
  //Perform(WM_DESTROY, 0, 0);
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  Panel: TMeuPanel;
begin
  Panel := TMeuPanel.Create(Self);
  Panel.Parent := ScrollBox1;
  Panel.Top := topLabel;
  Panel.Height := 15;
  Panel.Caption := 'Label' + IntToStr(topLabel);

  topLabel := topLabel + Panel.Height + 8;
end;

constructor TForm1.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);

  topLabel := 8;
end;

end.