private byte[] CommandFormation(string command, string data)
{
DataToPrinter = MHelper.GetByteArrayFromString(data);
_seq++;
if (_seq == MaxSeq)
{
_seq = MinSeq;
}
List <byte> commToPrinter = new List <byte>();
byte leng = (byte)(0x04 + 0x20 + data.Length);
commToPrinter.Add(Preamb);
commToPrinter.Add(leng);
commToPrinter.Add(_seq);
commToPrinter.Add(MHelper.StringToByte(command));
byte[] tempByte = MHelper.GetByteArrayFromString(data);
commToPrinter.AddRange(tempByte);
commToPrinter.Add(Enquiry);
tempByte = CsCount(MHelper.ByteListToArray(commToPrinter));
commToPrinter.AddRange(tempByte);
commToPrinter.Add(Postamb);
CommandToPrinter = MHelper.ByteListToArray(commToPrinter);
return(CommandToPrinter);
}
private void RefreshData()
{
if (PortAnswer != null)
{
DataToHost = DataFromPrinter(PortAnswer);
Status = CurrentStatus(PortAnswer);
}
else
{
DataToHost = MHelper.GetByteArrayFromString("F,F,F,F,F,F");
Status = _emptyByteArray;
}
}
private bool ReadPort()
{
string str = string.Empty;
char temp = (char)Syn;
if (!ReadAnswerFirstByte(ref temp))
{
return(false);
}
str += temp;
str += _port.ReadExisting();
byte[] ans = MHelper.GetByteArrayFromString(str);
while (ans[ans.Length - 1] != Terminator)
{
str += _port.ReadExisting();
ans = MHelper.GetByteArrayFromString(str);
}
if (!AnswerLenghtCount(ans))
{
return(false);
}
PortAnswer = ans;
return(true);
}