unit Unit1;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, Forms, Controls, Graphics, Dialogs, StdCtrls;

type

  { TForm1 }

  TForm1 = class(TForm)
    ListBox1: TListBox;
    ToggleBox1: TToggleBox;
    ToggleBox2: TToggleBox;
    ToggleBox3: TToggleBox;
    procedure ToggleBox1Click(Sender: TObject);
    procedure ToggleBox2Click(Sender: TObject);
    procedure ToggleBox3Click(Sender: TObject);
  private

  public

  end;

var
  Form1: TForm1;

implementation

{$R *.lfm}

{ TForm1 }



procedure TForm1.ToggleBox1Click(Sender: TObject);
begin
  ToggleBox1.State:= cbChecked;
  ToggleBox2.State:= cbUnChecked;
  ToggleBox3.State:= cbUnChecked;
  ListBox1.Items.Add('Check1');
end;

procedure TForm1.ToggleBox2Click(Sender: TObject);
begin
  ToggleBox2.State:= cbChecked;
  ToggleBox1.State:= cbUnChecked;
  ToggleBox3.State:= cbUnChecked;
  ListBox1.Items.Add('Check2');
end;

procedure TForm1.ToggleBox3Click(Sender: TObject);
begin
  ToggleBox3.State:= cbChecked;
  ToggleBox2.State:= cbUnChecked;
  ToggleBox1.State:= cbUnChecked;
  ListBox1.Items.Add('Check3');
end;

end.