public void BarcodeScan() { byte[] TriggerMDI3100 = { 0x1B, 0x5A, 0x0D }; // command Z: trigger the reader byte[] TriggerBS523 = { 0x1B, 0x31 }; // command Z: trigger the reader byte[] TriggerM3 = { 0x55, 0x30, 0x41, 0xAA }; try { if (type == 5) { openPortSSI(); if (isOpenSE4500DL) { SsiDllApi.PullTrigger(iPortNumber); SsiDllApi.SetDecodeBuffer(iPortNumber, SsiDllApi.DecodeData, SsiDllApi.MAX_LEN); } } else if (type != 4) { if (isOpen()) { if ((type == 0) || (type == 3))// Opticon { if (IsDebugMode) { Trace.WriteLine("Send MDI3100 Trigger : 0x1B, 0x5A, 0x0D"); } mSerialPort.Write(TriggerMDI3100, 0, TriggerMDI3100.Length); } else if (type == 1)// BS523 { if (IsDebugMode) { Trace.WriteLine("Send BS523 Trigger : 0x1B, 0x31"); } mSerialPort.Write(TriggerBS523, 0, TriggerBS523.Length); } else if (type == 2)// Opticon M3 { if (IsDebugMode) { Trace.WriteLine("Send M3 Trigger : 0x55, 0x30, 0x41, 0xAA"); } mSerialPort.Write(TriggerM3, 0, TriggerM3.Length); } } } else { m_IsdcRsApi.ScanStart(); } } catch (Exception ex) { if (IsDebugMode) { Trace.WriteLine(ex.Message); } } }