private void CheckPseButton_Click(object sender, EventArgs e)
        {
            unsafe
            {
                CheckPSERtb.Clear();


                if (rPSE2.Checked)
                {
                    checkEmvPse("2PAY.SYS.DDF01", "PSE2");
                }
                else if (rPSE1.Checked)
                {
                    checkEmvPse("1PAY.SYS.DDF01", "PSE1");
                }
                else
                {
                    MessageBox.Show("You must select Payment System Environment (PSE1/PSE2) first.");
                }
            }
        }
        private void CheckPSEClear_Click(object sender, EventArgs e)
        {
            uFCoder.s_block_deselect(100);

            CheckPSERtb.Clear();
        }