unit ConvBW;

interface

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

type
  TfrmConvertBW = class(TForm)
    RadioGroup1: TRadioGroup;
    Button1: TButton;
    Button2: TButton;
    GroupBox1: TGroupBox;
    Label1: TLabel;
    Edit1: TEdit;
    SpeedButton1: TSpeedButton;
    procedure RadioGroup1Click(Sender: TObject);
    procedure SpeedButton1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

implementation

{$R *.DFM}

procedure TfrmConvertBW.RadioGroup1Click(Sender: TObject);
begin
  GroupBox1.Enabled := RadioGroup1.ItemIndex = 0;
end;

procedure TfrmConvertBW.SpeedButton1Click(Sender: TObject);
begin
  edit1.enabled := not SpeedButton1.Down;
  label1.enabled := not SpeedButton1.Down;
end;

end.