private void btnMakePlaybill_Click(object sender, System.EventArgs e) { Boolean bRet = false; IntPtr hObj = CP5200.CP5200_Playbill_Create(Convert.ToInt32(m_txtWidth.Text), Convert.ToInt32(m_txtHeight.Text), 0x77); if (hObj != IntPtr.Zero) { if (CP5200.CP5200_Playbill_AddFile(hObj, GetProgramFileName()) >= 0) { if (CP5200.CP5200_Playbill_SaveToFile(hObj, GetPlaybillFileName()) == 0) { bRet = true; } } CP5200.CP5200_Playbill_Destroy(hObj); } if (bRet) { MessageBox.Show("Successful"); } else { MessageBox.Show("Fail"); } }