cadastra usuário e senha novos delphi

unit caduser;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.Buttons, PngBitBtn;

type
  TForm2 = class(TForm)
    Edit1: TEdit;
    Edit2: TEdit;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Button2: TButton;
    PngBitBtn1: TPngBitBtn;
    procedure FormCreate(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure PngBitBtn1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

uses U_dados, ucriptografia;

procedure TForm2.Button2Click(Sender: TObject);
begin
CLOSE;
end;

procedure TForm2.FormCreate(Sender: TObject);
begin
    dm.Qlogin.close;
    dm.Qlogin.SQL.Clear;
    dm.Qlogin.SQL.Add('Select * from login');
end;

procedure TForm2.PngBitBtn1Click(Sender: TObject);
 begin
if Trim(edit1.Text) = '' then
  begin
    Application.MessageBox('Preencha o campo senha.','Atenção',MB_OK+MB_ICONWARNING);
    edit1.SetFocus;
    Abort;
  end;
  if Trim(edit2.Text) = '' then
  begin
    Application.MessageBox('Preencha o campo usuario.','Atenção',MB_OK+MB_ICONWARNING);
    edit2.SetFocus;
    Abort;
    end;
dm.Qlogin.Open;
dm.Qlogin.Insert;
dm.Qloginusuario.Value:=edit1.Text;
dm.Qloginsenha.Value:=cript('C', edit2.Text);
dm.Qlogin.Edit;
dm.Qlogin.Post;
ShowMessage('SUA SENHA E SEU USUARIO FORMA SALVOS COM SUCESSO');
edit1.Text:='';
edit2.Text:='';
end;

end.