//////////////////////////////////////////////////////////////////////////////////////
//SERIAL METHODS
//////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Opens the serial Port
/// </summary>
/// <param name="port">Port Name i.e. "COM1:"</param>
/// <param name="readTimeOutConst">How long is the serial port wait for an answer</param>
/// <returns></returns>
public bool Open(string port, int readTimeOutConst) //port syntax: "COM#:"
{
//Configure/Prepare to Open
Close(); //Close port if already open
DCB dcbCommPort = new DCB(); //Call DCB struct
COMMTIMEOUTS ctoCommPort = new COMMTIMEOUTS(); //Call COMMTIMEOUTS struct
COMMPROP commprop = new COMMPROP(); //Call COMMPROP struct
//Open the COM port
hComm = CreateFile(
port, //Pointer to the name of the port
GENERIC_READ | GENERIC_WRITE, //Access (read-write) mode
0, //Share mode
0, //Pointer to the security attribute
OPEN_EXISTING, //How to open the serial port
0, //Port attributes
0); //Handle to port with attribute to copy
// If Port Can't be Opened, Return
if (this.hComm == INVALID_HANDLE_VALUE)
{
return(false); //Return, update user
}
if (this.hComm == INVALID_HANDLE_VALUE)
{
throw(new ApplicationException("Comm Port Can Not Be Opened"));
}
// Set the COMM Port Type
commprop.dwProvSubType = 0x00000001;
// Set the COMM Timeouts
GetCommTimeouts(hComm, ref ctoCommPort);
ctoCommPort.ReadTotalTimeoutConstant = readTimeOutConst;
ctoCommPort.ReadTotalTimeoutMultiplier = 0;
ctoCommPort.WriteTotalTimeoutMultiplier = 0;
ctoCommPort.WriteTotalTimeoutConstant = 0;
SetCommTimeouts(hComm, ref ctoCommPort);
// Set BAUD RATE, PARITY, WORD SIZE, AND STOP BITS. (From Above Values)
GetCommState(hComm, ref dcbCommPort);
dcbCommPort.BaudRate = BaudRate;
dcbCommPort.flags = 0;
dcbCommPort.flags |= 1;
if (Parity > 0)
{
dcbCommPort.flags |= 2;
}
dcbCommPort.Parity = Parity;
dcbCommPort.ByteSize = ByteSize;
dcbCommPort.StopBits = StopBits;
if (!SetCommState(hComm, ref dcbCommPort)) //Throw failure exception if needed
{
uint ErrorNum = GetLastError();
}
Opened = true; //Port open
return(true); //Return bool
}
public unsafe void GetCommProperties()
{
using (SafeFileHandle handle = CommunicationsMethods.CreateComFileHandle(@"\\.\COM4"))
{
COMMPROP properties = CommunicationsMethods.GetCommProperties(handle);
}
}
internal static extern bool GetCommProperties(
SafeFileHandle hFile, // handle to comm device
ref COMMPROP lpCommProp // communications properties
);
internal static extern bool GetCommProperties(
SafeFileHandle hFile, // handle to comm device
ref COMMPROP lpCommProp // communications properties
);
public static extern Boolean GetCommProperties(IntPtr hFile, out COMMPROP cp);
internal static extern bool GetCommProperties(SafeFileHandle hFile, ref COMMPROP lpCommProp);
internal static extern Boolean GetCommProperties(IntPtr hFile, out COMMPROP cp);
/// <summary>
/// Default constructor. Creates the comm properties structure.
/// </summary>
internal Win32Props()
{
this.cp = new COMMPROP();
return;
}
static extern bool GetCommProperties(IntPtr hFile, ref COMMPROP lpCommProp);
public void reloadSettings()
{
COMMPROP commProp = new COMMPROP();
IntPtr hFile = CreateFile(@"\\.\" + MainWindow.instance.serialPort.PortName, 0, 0, IntPtr.Zero, 3, 0x80, IntPtr.Zero);
GetCommProperties(hFile, ref commProp);
}
public static extern bool GetCommProperties(
SafeFileHandle hFile,
out COMMPROP lpCommProp);
/// <summary>
/// Default constructor. Creates the comm properties structure.
/// </summary>
internal Win32Props()
{
this.cp = new COMMPROP();
return;
}
internal static extern bool GetCommProperties(IntPtr hFile, out COMMPROP cp);
internal static extern bool GetCommProperties(SafeFileHandle hFile, ref COMMPROP lpCommProp);
internal static extern bool GetCommProperties(
IntPtr hFile,
ref COMMPROP lpCommProp
);
