/// <summary>
/// 目前支持打开串口，指定打印机名称
/// </summary>
/// <param name="lpName"></param>
/// <param name="nComBaudrate"></param>
/// <param name="nComDataBits"></param>
/// <param name="nComStopBits"></param>
/// <param name="nComParity"></param>
/// <param name="nParam"></param>
/// <returns></returns>
public static int POS_Open(string lpName, int nComBaudrate, int nComDataBits, int nComStopBits, int nComParity, int nParam)
{
switch (nParam)
{
case POS_COM_DTR_DSR:
case POS_COM_RTS_CTS:
case POS_COM_XON_OXFF:
case POS_COM_NO_HANDSHAKE:
{
POS_COM_HANDLE = IOCONTROL.CreateFile(lpName, IOCONTROL.GENERIC_READ | IOCONTROL.GENERIC_WRITE,
IOCONTROL.FILE_SHARE_READ | IOCONTROL.FILE_SHARE_WRITE,
0, IOCONTROL.OPEN_EXISTING, 0, 0);
IOCONTROL.DCB ComDcb = new IOCONTROL.DCB();
if (IOCONTROL.GetCommState(POS_COM_HANDLE, ref ComDcb))
{
ComDcb.BaudRate = (uint)nComBaudrate;
ComDcb.ByteSize = (byte)nComDataBits;
ComDcb.StopBits = (byte)nComStopBits;
ComDcb.Parity = (byte)nComParity;
switch (nParam)
{
case POS_COM_DTR_DSR:
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fDtrControl, IOCONTROL.DTR_CONTROL_ENABLE, ComDcb.fFlags);
break;
case POS_COM_RTS_CTS:
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fRtsControl, IOCONTROL.RTS_CONTROL_ENABLE, ComDcb.fFlags);
break;
case POS_COM_XON_OXFF:
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fOutX, 1, ComDcb.fFlags);
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fInX, 1, ComDcb.fFlags);
break;
case POS_COM_NO_HANDSHAKE:
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fRtsControl, IOCONTROL.RTS_CONTROL_DISABLE, ComDcb.fFlags);
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fDtrControl, IOCONTROL.DTR_CONTROL_DISABLE, ComDcb.fFlags);
break;
default:
break;
}
if (IOCONTROL.SetCommState(POS_COM_HANDLE, ref ComDcb))
{
POS_COM_SELECTED = true;
return POS_COM_HANDLE;
}
else
return INVALID_HANDLE_VALUE;
}
else
return INVALID_HANDLE_VALUE;
}
case POS_OPEN_PARALLEL_PORT:
{
return INVALID_HANDLE_VALUE;
}
case POS_OPEN_BYUSB_PORT:
{
return INVALID_HANDLE_VALUE;
}
case POS_OPEN_PRINTNAME:
{
if (PRINTEBYNAME.OpenPrinter(lpName, ref POS_PRINTNAME_HANDLE, IntPtr.Zero))
{
POS_PRINTNAME_SELECTED = true;
return POS_PRINTNAME_HANDLE;
}
else
return INVALID_HANDLE_VALUE;
}
case POS_OPEN_NETPORT:
{
return INVALID_HANDLE_VALUE;
}
default:
return INVALID_HANDLE_VALUE;
}
}
/// <summary>
/// 目前支持打开串口，指定打印机名称，指定网口（端口号为9100）
/// </summary>
/// <param name="lpName"></param>
/// <param name="nComBaudrate"></param>
/// <param name="nComDataBits"></param>
/// <param name="nComStopBits"></param>
/// <param name="nComParity"></param>
/// <param name="nParam"></param>
/// <returns></returns>
public static int POS_Open(string lpName, int nComBaudrate, int nComDataBits, int nComStopBits, int nComParity, int nParam)
{
switch (nParam)
{
case POS_COM_DTR_DSR:
case POS_COM_RTS_CTS:
case POS_COM_XON_OXFF:
case POS_COM_NO_HANDSHAKE:
{
POS_COM_HANDLE = IOCONTROL.CreateFile(lpName, IOCONTROL.GENERIC_READ | IOCONTROL.GENERIC_WRITE,
IOCONTROL.FILE_SHARE_READ | IOCONTROL.FILE_SHARE_WRITE,
0, IOCONTROL.OPEN_EXISTING, 0, 0);
IOCONTROL.DCB ComDcb = new IOCONTROL.DCB();
if (IOCONTROL.GetCommState(POS_COM_HANDLE, ref ComDcb))
{
ComDcb.BaudRate = (uint)nComBaudrate;
ComDcb.ByteSize = (byte)nComDataBits;
ComDcb.StopBits = (byte)nComStopBits;
ComDcb.Parity = (byte)nComParity;
switch (nParam)
{
case POS_COM_DTR_DSR:
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fDtrControl, IOCONTROL.DTR_CONTROL_ENABLE, ComDcb.fFlags);
break;
case POS_COM_RTS_CTS:
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fRtsControl, IOCONTROL.RTS_CONTROL_ENABLE, ComDcb.fFlags);
break;
case POS_COM_XON_OXFF:
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fOutX, 1, ComDcb.fFlags);
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fInX, 1, ComDcb.fFlags);
break;
case POS_COM_NO_HANDSHAKE:
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fRtsControl, IOCONTROL.RTS_CONTROL_DISABLE, ComDcb.fFlags);
ComDcb.fFlags = IOCONTROL.SetFlags(IOCONTROL.fDtrControl, IOCONTROL.DTR_CONTROL_DISABLE, ComDcb.fFlags);
break;
default:
break;
}
if (IOCONTROL.SetCommState(POS_COM_HANDLE, ref ComDcb))
{
POS_COM_SELECTED = true;
return POS_COM_HANDLE;
}
else
return INVALID_HANDLE_VALUE;
}
else
return INVALID_HANDLE_VALUE;
}
case POS_OPEN_PARALLEL_PORT:
{
return INVALID_HANDLE_VALUE;
}
case POS_OPEN_BYUSB_PORT:
{
return INVALID_HANDLE_VALUE;
}
case POS_OPEN_PRINTNAME:
{
if (PRINTEBYNAME.OpenPrinter(lpName, ref POS_PRINTNAME_HANDLE, IntPtr.Zero))
{
POS_PRINTNAME_SELECTED = true;
return POS_PRINTNAME_HANDLE;
}
else
return INVALID_HANDLE_VALUE;
}
case POS_OPEN_NETPORT:
{
IPAddress ip = IPAddress.Parse(lpName);
IPEndPoint point = new IPEndPoint(ip, 9100);
sc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
sc.Connect(point);
if (sc.Connected)
{
POS_NETPORT_SELECTED = true;
POS_NETPORT_HANDLE = (int)sc.Handle;
return POS_NETPORT_HANDLE;
}
else
return INVALID_HANDLE_VALUE;
}
default:
return INVALID_HANDLE_VALUE;
}
}
