/*
* Once a database is loaded, this method will be called
* to add all the messages to the ComboBox.
*/
public List <Message> LoadMessages()
{
Kvadblib.MessageHnd mh;
Kvadblib.Status status;
Kvadblib.NodeHnd nh;
List <Message> messages = new List <Message>();
status = Kvadblib.GetFirstMsg(dh, out mh);
while (status == Kvadblib.Status.OK)
{
string name;
int id;
int dlc;
string nodeName;
Kvadblib.MESSAGE flags;
status = Kvadblib.GetMsgName(mh, out name);
status = Kvadblib.GetMsgId(mh, out id, out flags);
status = Kvadblib.GetMsgDlc(mh, out dlc);
status = Kvadblib.GetMsgSendNode(mh, out nh);
status = Kvadblib.GetNodeName(nh, out nodeName);
Kvadblib.AttributeHnd ah;
int attEunmVal = 8;
status = Kvadblib.GetAttributeByName(dh, "GenMsgSendType", out ah); //获取ah用于存储对应message的ah
status = Kvadblib.GetMsgAttributeByName(mh, "GenMsgSendType", ref ah); //获取对应message的attribute信息
Kvadblib.GetAttributeValueEnumeration(ah, out attEunmVal);
int GenMsgCycleTime = 0;
status = Kvadblib.GetAttributeByName(dh, "GenMsgCycleTime", out ah); //获取ah用于存储对应message的ah
status = Kvadblib.GetMsgAttributeByName(mh, "GenMsgCycleTime", ref ah); //获取对应message的attribute信息
Kvadblib.GetAttributeValueInt(ah, out GenMsgCycleTime);
Message message = new Message();
message.id = id;
message.name = name;
message.dlc = dlc;
message.tx_node = nodeName;
message.GenMsgSendType = this.GenMsgSendType[attEunmVal];
message.GenMsgCycleTime = GenMsgCycleTime;
message.CycleCount = 0;
messages.Add(message);
status = Kvadblib.GetNextMsg(dh, out mh);
}
return(messages);
}
/*
* Loads the selected message's signals to construct a form
*/
public List <Signal> LoadSignalsById(int MsgId)
{
List <Signal> result = new List <Signal>();
Kvadblib.MessageHnd mh;
Kvadblib.Status status = Kvadblib.GetMsgById(dh, MsgId, out mh);
if (status == Kvadblib.Status.OK)
{
Kvadblib.MESSAGE f;
int dlc;
msgHandle = mh;
Kvadblib.GetMsgId(mh, out msgId, out f);
Kvadblib.GetMsgDlc(mh, out dlc);
msgId = ((MsgId & -2147483648) == 0) ? MsgId : MsgId ^ -2147483648;
msgFlags = ((MsgId & -2147483648) == 0) ? 0 : Canlib.canMSG_EXT;
hasMessage = true;
result = LoadSignals(dlc);
}
return(result);
}
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);
}