По-моему так. если ещё что-нибудь дополнить, написать - пиши
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;

type
TForm1 = class(TForm)
Button1: TButton;
Button2: TButton;
Button3: TButton;
Button4: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
Top:=0;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
Left:=0;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin

end;

procedure TForm1.Button4Click(Sender: TObject);
begin

end;

procedure TForm1.FormCreate(Sender: TObject);
begin

end;

end.