unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    ComboBox1: TComboBox;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
begin
if form1.color <> clred then

form1.Color := clred
else
 if form1.color = clred then
form1.color := clteal
//end;

end;

procedure TForm1.Button2Click(Sender: TObject);
begin
if form1.WindowState = wsnormal then
form1.windowstate := wsmaximized
else
if form1.WindowState = wsmaximized then
form1.windowstate := wsnormal
end;

//end;

end.