2017. 06. 14. 10:28 keltezéssel, José Mejuto írta: > That's wrong for sure, x is not initialized to nil, not in Linux nor in > Windows. With the below code caption of the form not changed on Linux for me. procedure TForm1.FormCreate(Sender: TObject); var x:TPanel; begin if Assigned(x) then Caption:='Assigned'; end; Gabor