{$R *.fmx}
procedure TFormFMX.Button1Click(Sender: TObject); begin ShowMessage('FMX cross-platform example'); end; delphi 2017 r3
var FormMain: TFormMain;
implementation
uses Vcl.Forms, Vcl.Controls, Vcl.StdCtrls, System.SysUtils; begin ShowMessage('FMX cross-platform example')