procedure TForm1.LabeledEdit1KeyPress(Sender: TObject; var Key: Char);
begin
if key=#13 then
begin
bitbtn1.Visible:=true;
bitbtn1.SetFocus;
end
else
begin
bitbtn1.Visible:=true;
end
end;
procedure TForm1.BitBtn1Click(Sender: TObject);
begin
bitbtn1.Visible:=false;
end;