private void btnSendText_Click(object sender, EventArgs e) { int ret = 0; int icolor = 3000; m_nWidth = Convert.ToInt32(m_edtWidth.Text); m_nHeight = Convert.ToInt32(m_edtHeight.Text); IntPtr iPtr = Marshal.StringToHGlobalAnsi(m_edtText.Text); if (1 == InitComm()) { if (0 == m_nCommType) { ret = CP5200.CP5200_RS232_SendText(m_nCardID, 0, iPtr, icolor, 16, 3, 0, 3, 0); } else { ret = CP5200.CP5200_Net_SendTagText(m_nCardID, 0, iPtr, icolor, 16, 3, 0, 3, 0); } if (0 <= ret) { MessageBox.Show("Successful"); } else { MessageBox.Show("Fail"); } } }