public static ConnectionTag CreateNewSerialConnection(IWin32Window parent, SerialTerminalParam param)
{
bool successful = false;
FileStream strm = null;
try {
string portstr = String.Format("\\\\.\\COM{0}", param.Port);
IntPtr ptr = Win32.CreateFile(portstr, Win32.GENERIC_READ | Win32.GENERIC_WRITE, 0, IntPtr.Zero, Win32.OPEN_EXISTING, Win32.FILE_ATTRIBUTE_NORMAL | Win32.FILE_FLAG_OVERLAPPED, IntPtr.Zero);
if (ptr == Win32.INVALID_HANDLE_VALUE)
{
string msg = GEnv.Strings.GetString("Message.CommunicationUtil.FailedToOpenSerial");
int err = Win32.GetLastError();
if (err == 2)
{
msg += GEnv.Strings.GetString("Message.CommunicationUtil.NoSuchDevice");
}
else if (err == 5)
{
msg += GEnv.Strings.GetString("Message.CommunicationUtil.DeviceIsBusy");
}
else
{
msg += "\nGetLastError=" + Win32.GetLastError();
}
throw new Exception(msg);
}
//strm = new FileStream(ptr, FileAccess.Write, true, 8, true);
Win32.DCB dcb = new Win32.DCB();
FillDCB(ptr, ref dcb);
UpdateDCB(ref dcb, param);
if (!Win32.SetCommState(ptr, ref dcb))
{
throw new Exception(GEnv.Strings.GetString("Message.CommunicationUtil.FailedToConfigSerial"));
}
Win32.COMMTIMEOUTS timeouts = new Win32.COMMTIMEOUTS();
Win32.GetCommTimeouts(ptr, ref timeouts);
timeouts.ReadIntervalTimeout = 0xFFFFFFFF;
timeouts.ReadTotalTimeoutConstant = 0;
timeouts.ReadTotalTimeoutMultiplier = 0;
timeouts.WriteTotalTimeoutConstant = 100;
timeouts.WriteTotalTimeoutMultiplier = 100;
Win32.SetCommTimeouts(ptr, ref timeouts);
successful = true;
System.Drawing.Size sz = GEnv.Frame.TerminalSizeForNextConnection;
SerialTerminalConnection r = new SerialTerminalConnection(param, ptr, sz.Width, sz.Height);
r.SetServerInfo("COM" + param.Port, null);
return(new ConnectionTag(r));
}
catch (Exception ex) {
GUtil.Warning(parent, ex.Message);
return(null);
}
finally {
if (!successful && strm != null)
{
strm.Close();
}
}
}
public CommandResult SerialConfig()
{
SerialTerminalConnection stc = _connection as SerialTerminalConnection;
if (stc == null)
{
return(CommandResult.Failed);
}
try {
SerialConfigForm f = new SerialConfigForm();
f.ApplyParam(stc);
if (GCUtil.ShowModalDialog(GApp.Frame, f) == DialogResult.OK)
{
return(CommandResult.Success);
}
else
{
return(CommandResult.Cancelled);
}
}
catch (NotSupportedException) {
GUtil.Warning(GApp.Frame, GApp.Strings.GetString("Message.SerialConfigIsSerialOnly"));
return(CommandResult.Failed);
}
}
