unit JvCheckBoxDemoUnit;

{$mode objfpc}{$H+}

interface

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

type

  { TForm1 }

  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    ComboBox1: TComboBox;
    Edit1: TEdit;
    JvCheckBox1: TJvCheckBox;
    Label1: TLabel;
    ListBox1: TListBox;
    Memo1: TMemo;
    Panel1: TPanel;
    procedure Button2Click(Sender: TObject);
  private

  public

  end;

var
  Form1: TForm1;

implementation

{$R *.lfm}

{ TForm1 }

procedure TForm1.Button2Click(Sender: TObject);
begin
  JvCheckbox1.Toggle;
end;

end.