public void getWeight()
{
lastCmd = Command.GetWeight;
byte[] buffer;
buffer = new byte[2];
buffer[0] = 0x1B;
buffer[1] = 0x50;
lastScaledWeight = null;
sendMessage(buffer, buffer.Length);
}
scaleResult getScaleInfo(string data)
{
scaleResult sr = new scaleResult();
sr.deviceSerial = deviceSerial;
if (data.Length != 14)
{
return(null);
}
string strWeight = data.Substring(0, 10);
string strUnit = data.Substring(11);
double value = 0.0;
if (double.TryParse(strWeight.Replace(" ", ""), System.Globalization.NumberStyles.Number, System.Globalization.CultureInfo.InvariantCulture, out value))
{
sr.WeightValue = value;
sr.WeightEvent = DateTime.Now;
if (strUnit.Equals("ct "))
{
sr.bValueStable = true;
sr.unit = scaleResult.Unit.Carats;
}
else if (strUnit.Equals("g "))
{
sr.bValueStable = true;
sr.unit = scaleResult.Unit.Grams;
}
else
{
sr.bValueStable = false;
sr.unit = scaleResult.Unit.None;
}
return(sr);
}
else
{
return(null);
}
}
/*public string getSerial()
* {
* lastCmd = Command.GetSerial;
* lastSerialRead = null;
* byte[] buffer;
* buffer = new byte[4];
* buffer[0] = 0x1B;
* buffer[1] = 0x78;
* buffer[2] = 0x32;
* buffer[3] = 0x5F;
* sendMessage(buffer, buffer.Length);
* System.Threading.Thread.Sleep(250);
* return lastSerialRead;
* }
* public string getModel()
* {
* lastCmd = Command.GetModel;
* lastModelRead = null;
* byte[] buffer;
* buffer = new byte[4];
* buffer[0] = 0x1B;
* buffer[1] = 0x78;
* buffer[2] = 0x31;
* buffer[3] = 0x5F;
* sendMessage(buffer, buffer.Length);
* System.Threading.Thread.Sleep(250);
* return lastModelRead;
* }
*
* public void setTare()
* {
* lastCmd = Command.SetTare;
* byte[] buffer;
* buffer = new byte[2];
* buffer[0] = 0x1B;
* buffer[1] = 0x54;
* sendMessage(buffer, buffer.Length);
* }*/
private void OnDataReceived(object sender, SerialDataReceivedEventArgs e)
{
while (true)
{
if (!serialPort.IsOpen)
{
return;
}
inboundBuffer += serialPort.ReadExisting();
int frameEnd = inboundBuffer.IndexOf(CHAR_EndOfFrameHF, 0);
if (frameEnd < 0)
{
break;
}
// A full message is available.
string message = inboundBuffer.Substring(0, frameEnd - 1);
inboundBuffer = inboundBuffer.Substring(frameEnd + 1);
dataRead = message;
if (lastCmd == Command.GetWeight)
{
lastScaledWeight = getScaleInfo(dataRead);
}
else if (lastCmd == Command.GetSerial)
{
lastSerialRead = dataRead.TrimStart().Substring(0, 8);
}
else if (lastCmd == Command.GetModel)
{
lastModelRead = dataRead;
}
if (NotifyWeightEvent != null)
{
NotifyWeightEvent(this, deviceSerial, dataRead);
}
}
}
