public bool closeComport()
{
Win32Com.CancelIo(hPort);
if (!Win32Com.CloseHandle(hPort))
{
//Console.WriteLine("Warning: Can't close COM port!");
return(false);
}
return(true);
}
public unsafe void writeComport(string sBuffer)
{
byte[] byteArray = new byte[MAX];
byteArray = encoding.GetBytes(sBuffer + "\r\n");
fixed(byte *data = &byteArray[0])
{
int write = 0;
if (!Win32Com.WriteFile(hPort, data, byteArray.Length, &write, ptrUWO))
{
Console.WriteLine("Error: Can't write file into COM port!");
}
}
}
public void timeOut()
{
if (!Win32Com.GetCommTimeouts(hPort, out CommTimeouts))
{
//Console.WriteLine("TIMEOUT FEJL");
CommTimeouts.ReadIntervalTimeout = 0;
}
CommTimeouts.ReadTotalTimeoutMultiplier = 1;
CommTimeouts.ReadTotalTimeoutConstant = 0;
CommTimeouts.WriteTotalTimeoutMultiplier = 0;
CommTimeouts.WriteTotalTimeoutConstant = 0;
if (!Win32Com.SetCommTimeouts(hPort, ref CommTimeouts))
{
Console.WriteLine("TIMEOUT FEJL");
}
}
public unsafe string readComport()
{
int index = 0;
string sBuffer;
byte[] buffer = new byte[MAX];
int n = 1;
while (n != 0)
{
n = 0;
fixed(byte *data = &buffer[0])
{
if (!Win32Com.ReadFile(hPort, data + index, MAX, &n, ptrUWO))
{
Console.WriteLine("Read Modem Failed");
}
}
}
sBuffer = encoding.GetString(buffer);
return(sBuffer);
}
public bool openComport(string port)
{
//hPort = Win32Com.CreateFile(port, (uint) Win32Com.GENERIC_READ | Win32Com.GENERIC_WRITE, 0, 0, 3, 0x40000000, 0);
hPort = Win32Com.CreateFile(port, Win32Com.GENERIC_READ | Win32Com.GENERIC_WRITE, 0, IntPtr.Zero,
Win32Com.OPEN_EXISTING, 0, IntPtr.Zero);
if (hPort == (IntPtr)Win32Com.INVALID_HANDLE_VALUE)
{
//Console.WriteLine("Error: COM port could not be opened!");
return(false);
}
else
{
Win32Com.GetCommState(hPort, ref PortDCB);
PortDCB.BaudRate = 115200; //
PortDCB.ByteSize = 8; // 8 databit
PortDCB.Parity = 0; //no parity
PortDCB.StopBits = 0; //1 stopbit
/*PortDCB.XonLim = 2048;
* PortDCB.XoffLim = 512;
* PortDCB.XonChar = 0x11; // Ctrl-Q
* PortDCB.XoffChar = 0x13; // Ctrl-S*/
if (!Win32Com.SetCommState(hPort, ref PortDCB))
{
//Console.WriteLine("Error: COM port could not be opened!");
return(false);
}
timeOut();
return(true);
}
}
