unit Unit2;

interface

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

type
  TForm2 = class(TForm)
    GroupBox1: TGroupBox;
    Button1: TButton;
    Button2: TButton;
    Edit1: TEdit;
    Label1: TLabel;
    procedure FormActivate(Sender: TObject);
    procedure Button1Click(Sender: TObject);

  private
    { Private declarations }
  public
    { Public declarations }
    UserID: WORD;
    DialogType: integer;
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.FormActivate(Sender: TObject);
begin
    if (DialogType and $80000000) <> 0 then
        Caption := 'Settings'
    else
        Caption := 'Change sChip UserID';

    Edit1.Text := IntToHex(UserID, 4);
end;

procedure TForm2.Button1Click(Sender: TObject);
var
    i: Integer;
begin
    i := Str2Word(Edit1.Text);
    if( i = -1) then
    begin
        MessageBox(Handle, '請輸入4個字符并且使用十六進制編碼字符。', 'Set UserID error', MB_OK);
        Edit1.Clear();
        exit;
    end;
    UserID := Word(i);
    ModalResult := mrOk;
end;

end.