public void SetAttributes (int baud_rate, Parity parity, int data_bits, StopBits bits, Handshake hs)
{
DCB dcb = new DCB ();
if (!GetCommState (handle, dcb))
ReportIOError (null);
dcb.SetValues (baud_rate, parity, data_bits, bits, hs);
if (!SetCommState (handle, dcb))
ReportIOError (null);
}
static bool SetCommState (int handle, DCB dcb)
{
throw new System.NotImplementedException();
}
static extern bool SetCommState (int handle, DCB dcb);
/// <summary>
/// Configures the serial device based on the connection parameters pased in by the user.
/// </summary>
/// <returns>Whether or not the operation succeeded</returns>
private bool ConfigureSerialPort()
{
DCB serialConfig = new DCB();
if (GetCommState(handle, ref serialConfig))
{
// setup the DCB struct with the serial settings we need
serialConfig.BaudRate = (uint)this.baudRate;
serialConfig.ByteSize = this.byteSize;
serialConfig.fBinary = 1; // must be true
serialConfig.fDtrControl = 1; // DTR_CONTROL_ENABLE "Enables the DTR line when the device is opened and leaves it on."
serialConfig.fAbortOnError = 0; // false
serialConfig.fTXContinueOnXoff = 0; // false
serialConfig.fParity = 1; // true so that the Parity member is looked at
switch (this.parity)
{
case Parity.Even:
serialConfig.Parity = 2;
break;
case Parity.Mark:
serialConfig.Parity = 3;
break;
case Parity.Odd:
serialConfig.Parity = 1;
break;
case Parity.Space:
serialConfig.Parity = 4;
break;
case Parity.None:
default:
serialConfig.Parity = 0;
break;
}
switch (this.stopBits)
{
case StopBits.One:
serialConfig.StopBits = 0;
break;
case StopBits.OnePointFive:
serialConfig.StopBits = 1;
break;
case StopBits.Two:
serialConfig.StopBits = 2;
break;
case StopBits.None:
default:
throw new ArgumentException("stopBits cannot be StopBits.None");
}
if (SetCommState(handle, ref serialConfig))
{
// set the serial connection timeouts
COMMTIMEOUTS timeouts = new COMMTIMEOUTS();
//timeouts.ReadIntervalTimeout = 1;
//timeouts.ReadTotalTimeoutMultiplier = 0;
//timeouts.ReadTotalTimeoutConstant = 0;
//timeouts.WriteTotalTimeoutMultiplier = 0;
//timeouts.WriteTotalTimeoutConstant = 0;
timeouts.ReadIntervalTimeout = 20;
timeouts.ReadTotalTimeoutMultiplier = 10;
timeouts.ReadTotalTimeoutConstant = 100;
timeouts.WriteTotalTimeoutMultiplier = 10;
timeouts.WriteTotalTimeoutConstant = 100;
if (SetCommTimeouts(handle, ref timeouts))
return true;
else return false;
}
else return false;
}
else return false;
}
static extern bool GetCommState(IntPtr hFile, ref DCB lpDCB);
static extern bool SetCommState(int handle, DCB dcb);
static extern bool GetCommState(int handle, [Out] DCB dcb);
static bool SetCommState(int handle, DCB dcb)
{
throw new System.NotImplementedException();
}
