/*
* Constructs a form for creating messages.
* Consists of one TextBox for every signal in the loaded message.
*/
private List <Signal> LoadSignals(int dlc)
{
Kvadblib.SignalHnd sh;
Kvadblib.Status status = Kvadblib.GetFirstSignal(msgHandle, out sh);
List <Signal> signals = new List <Signal>();
while (status == Kvadblib.Status.OK)
{
string name;
string unit;
double min, max, scale, offset, val;
//byte[] data = new byte[dlc];
//Construct the text for the label
status = Kvadblib.GetSignalName(sh, out name);
status = Kvadblib.GetSignalUnit(sh, out unit);
status = Kvadblib.GetSignalValueLimits(sh, out min, out max);
status = Kvadblib.GetSignalValueScaling(sh, out scale, out offset);
//status = Kvadblib.GetSignalValueFloat(sh, out val, data, dlc);
//Signal s = new Signal(name, max, min, min, scale);
Signal s = new Signal(name, max, min, min, scale);
signals.Add(s);
status = Kvadblib.GetNextSignal(msgHandle, out sh);
}
return(signals);
}
/*
* Constructs a message from the form and sends it
* to the channel
*/
private bool SendMessage(int dlc, List <Signal> signals)
{
byte[] data = new byte[dlc];
Kvadblib.Status status = Kvadblib.Status.OK;
Kvadblib.SignalHnd sh;
bool error = false;
foreach (Signal s in signals)
{
double min, max;
status = Kvadblib.GetSignalByName(msgHandle, s.name, out sh);
if (status != Kvadblib.Status.OK)
{
error = true;
break;
}
Kvadblib.GetSignalValueLimits(sh, out min, out max);
status = Kvadblib.StoreSignalValuePhys(sh, data, dlc, s.Value);
//Check if the signal value was successfully stored and that it's in the correct interval
if (status != Kvadblib.Status.OK || s.Value < min || s.Value > max)
{
error = true;
break;
}
}
if (!error)
{
Canlib.canWriteWait(chanHandle, msgId, data, dlc, msgFlags, 50);
}
return(error);
}
public static List <CanMessage> OpenCanDB(string fullFilePath)
{
Kvadblib.Hnd db_handle;
Kvadblib.Status status;
status = Kvadblib.Open(out db_handle);
status = Kvadblib.Create(db_handle, "MyTestDB", fullFilePath);
if (status == Kvadblib.Status.Err_DbFileOpen)
{
throw new Exception("Could not open CAN database file"); // TODO: Handle more gracefully
}
if (status == Kvadblib.Status.Err_DbFileParse)
{
string errorMessage;
status = Kvadblib.GetLastParseError(out errorMessage);
throw new Exception("Could not parse file. Error: \n" + errorMessage);
}
List <CanMessage> Messages = new List <CanMessage>();
// Get the first message in the database
Kvadblib.MessageHnd messageHandle;
status = Kvadblib.GetFirstMsg(db_handle, out messageHandle);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetFirstMsg failed: " + status.ToString()); // TODO: Handle more gracefully
}
// Go through all messages in the database
while (status == Kvadblib.Status.OK)
{
string tempMessageName;
string tempMessageQualifiedName;
string tempMessageComment;
int tempMessageID;
Kvadblib.MESSAGE tempFlags;
int tempMessageDlc;
// Get the properties for each message
status = Kvadblib.GetMsgName(messageHandle, out tempMessageName);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetMsgName failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetMsgQualifiedName(messageHandle, out tempMessageQualifiedName);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetMsgQualifiedName failed: " + status.ToString());
}
status = Kvadblib.GetMsgComment(messageHandle, out tempMessageComment);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetMsgComment failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetMsgIdEx(messageHandle, out tempMessageID);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetMsgId failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetMsgFlags(messageHandle, out tempFlags);
if (status != Kvadblib.Status.OK)
{
throw new Exception("GetMsgFlags failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetMsgDlc(messageHandle, out tempMessageDlc);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetMsgDlc failed: " + status.ToString()); // TODO: Handle more gracefully
}
CanMessage tempCanMessage = new CanMessage
{
Comment = tempMessageComment,
DLC = tempMessageDlc,
Flags = tempFlags,
ID = tempMessageID,
Name = tempMessageName,
QualifiedName = tempMessageQualifiedName,
};
Messages.Add(tempCanMessage);
// Go through all signals for this message
Kvadblib.SignalHnd signalHandle;
status = Kvadblib.GetFirstSignal(messageHandle, out signalHandle);
while (status == Kvadblib.Status.OK)
{
string tempSignalName;
string tempSignalQualifiedName;
string tempSignalComment;
string tempSignalUnit;
Kvadblib.SignalEncoding tempSignalEncoding;
Kvadblib.SignalType tempSignalType;
int tempStartbit = 0;
int tempLength = 0;
double tempMinval = 0;
double tempMaxval = 0;
double tempScaleFactor = 0;
double tempOffset = 0;
// Get the properties for each signal.
status = Kvadblib.GetSignalName(signalHandle, out tempSignalName);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalName failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetSignalQualifiedName(signalHandle, out tempSignalQualifiedName);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalQualifiedName failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetSignalComment(signalHandle, out tempSignalComment);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalComment failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetSignalUnit(signalHandle, out tempSignalUnit);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalUnit failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetSignalEncoding(signalHandle, out tempSignalEncoding);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalEncoding failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetSignalRepresentationType(signalHandle, out tempSignalType);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalRepresentationType failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetSignalValueLimits(signalHandle, out tempMinval, out tempMaxval);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalValueLimits failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetSignalValueScaling(signalHandle, out tempScaleFactor, out tempOffset);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalValueScaling failed: " + status.ToString()); // TODO: Handle more gracefully
}
status = Kvadblib.GetSignalValueSize(signalHandle, out tempStartbit, out tempLength);
if (status != Kvadblib.Status.OK)
{
throw new Exception("kvaDbGetSignalValueSize failed: " + status.ToString()); // TODO: Handle more gracefully
}
CanSignal tempCanSignal = new CanSignal
{
Comment = tempSignalComment,
Encoding = tempSignalEncoding,
Length = tempLength,
MaxValue = tempMaxval,
MinValue = tempMinval,
Name = tempSignalName,
Offset = tempOffset,
QualifiedName = tempSignalQualifiedName,
ScaleFactor = tempScaleFactor,
StartBit = tempStartbit,
Type = tempSignalType,
Unit = tempSignalUnit,
};
tempCanMessage.Signals.Add(tempCanSignal);
status = Kvadblib.GetNextSignal(messageHandle, out signalHandle);
}
status = Kvadblib.GetNextMsg(db_handle, out messageHandle);
}
// All done; close database
Kvadblib.Close(db_handle);
return(Messages);
}