Trankyou, try to download the attached file "scaledpi.zip" this is an unit that helps to scale all components in a form, you only need to call the procedure OnCreate event (see the example inside), is the best way.
const
FromDPI=96;
procedure TForm1.FormCreate(Sender: TObject);
begin
if FromDPI <> Screen.PixelsPerInch then begin
ScaleControl(Self,FromDPI);
end;
end;