unit DisSet;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TDiscountSetForm = class(TForm)
    btnOK: TButton;
    Discount: TEdit;
    Label1: TLabel;
    procedure btnOKClick(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  DiscountSetForm: TDiscountSetForm;

implementation

{$R *.dfm}
var
    MakeDis: real;

procedure TDiscountSetForm.btnOKClick(Sender: TObject);
begin
    if Discount.Text<>'' then MakeDis := StrTofloat(Discount.Text)
    else MakeDis := 0;
    self.Close;
end;

end.