private void btnTest_Click(object sender, EventArgs e)
        {
            int ret = AuthObj.Auth("0F3C6EC9-7089-4BB2-B308-508E90A2995E");

            if (0 == ret)
            {
                Hide();
                frmMain.ShowDialog();
                Close();
            }
            else
            {
                lblRet.Text = "The Test-card is disabled";
            }
        }
        private void btnAuth_Click(object sender, EventArgs e)
        {
            int ret = 0;

            if (0 == cboMode.SelectedIndex)
            {
                ret = AuthObj.Auth(txtAcc.Text);
            }
            else
            {
                ret = AuthObj.UserAuth(txtAcc.Text, txtPwd.Text);
            }

            switch (ret)
            {
            case 0:
                Hide();
                frmMain.ShowDialog();
                Close();
                break;

            case -1:
                lblRet.Text = "The Registr-code is Invalid";
                break;

            case -2:
                lblRet.Text = "The Registr-code is disabled";
                break;

            case -3:
                lblRet.Text = "Bind is over limit";
                break;

            case -4:
                lblRet.Text = "Channels is over limit";
                break;

            case -5:
                lblRet.Text = "Out of date";
                break;

            case -6:
                lblRet.Text = "Insufficient Balance";
                break;
            }
        }