/*
* 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);
}
private void DumpMessage(int id, string idStr, byte[] data, int dlc, int flags, long time)
{
Kvadblib.Status status;
Kvadblib.MessageHnd mh = new Kvadblib.MessageHnd();
Kvadblib.SignalHnd sh = new Kvadblib.SignalHnd();
//Flips the EXT bit if the EXT flag is set
if ((flags & Canlib.canMSG_EXT) != 0)
{
id ^= -2147483648;
}
//Find the database message whose id matches the one
//from the incoming message
status = Kvadblib.GetMsgById(dbhandle, id, out mh);
outputBox.AppendText(string.Format("Reading message with id {0}", idStr) + Environment.NewLine);
//Print the message info
if (status == Kvadblib.Status.OK)
{
string msgName;
status = Kvadblib.GetMsgName(mh, out msgName);
outputBox.AppendText(string.Format("Message received: {0}", msgName) + Environment.NewLine);
int msgId;
Kvadblib.MESSAGE msgFlags;
status = Kvadblib.GetMsgId(mh, out msgId, out msgFlags);
outputBox.AppendText(string.Format("Id: {0}, flags: {1}", msgId, msgFlags) + Environment.NewLine);
//Iterate through all the signals and print their name, value and unit
status = Kvadblib.GetFirstSignal(mh, out sh);
while (status == Kvadblib.Status.OK)
{
string signalname;
status = Kvadblib.GetSignalName(sh, out signalname);
string unit;
status = Kvadblib.GetSignalUnit(sh, out unit);
double value;
status = Kvadblib.GetSignalValueFloat(sh, out value, data, dlc);
outputBox.AppendText(string.Format("Signal - {0}: {1} {2}", signalname, value, unit) + Environment.NewLine);
status = Kvadblib.GetNextSignal(mh, out sh);
}
}
}
/*
* 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);
}