unit fmTest;

interface

uses
  System.SysUtils, System.Types, System.UITypes, System.Classes, System.Variants,
  FMX.Types, FMX.Controls, FMX.Forms, FMX.Graphics, FMX.Dialogs, FMX.StdCtrls;

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

var
  TestForm: TTestForm;

implementation

{$R *.fmx}

procedure TTestForm.Button1Click(Sender: TObject);
begin
  ShowMessage('Hello, world!');
end;

end.