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AfdxGetMessageId

Valid for: CANoe DE • CANoe:lite DE • CANoe4SW DE • CANoe4SW:lite DE

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Function Syntax

long AfdxGetMessageId( long packet );

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Description

This function returns the message ID for the specified message. The ID is calculated from the actual addressing information of the message and the return value may be used to query more information about that message.

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Parameters

  • packet: Handle of the message.

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Return Values

  • >0: message ID
  • 0: error (invalid packet or no UDP)

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Example

Analyze signals from an incoming AFDX packet using DBC information 
on preStart
{
  AfdxRegisterReceiveCallback("OnPacket");
}

void OnPacket( long dir, long line, int64 timestamp, long bag, long afdxFlags, long packet )
{
  long lVal=0; // integer signal
  long eVal=0; // enumeration signal
  long bVal=0; // boolean signal
  double rVal = 0.0; // float signal
  char sVal[16]; // string signal
  byte oVal[16]; // opaque signal
  long len, status, err;
  long msgID;
  char msgName[256];

  // get message ID of this message
  msgID = AfdxGetMessageId( packet );

  // get message name of this message
  err = AfdxGetMessageName( packet, 256, msgName );

  // get signal status
  status = AfdxGetSignalStatus( packet, "VFG_OIL_TEMP_A_34" );

  // get integer signal
  lVal = AfdxGetSignalInt( packet, "VFG_OIL_TEMP_A_34" );

  // get float-signal 2
  rVal = AfdxGetSignalReal( packet, "VFG_OIL_TEMP_AB_32" );

  // get boolean signal 3
  bVal = AfdxGetSignalBool( packet, "VFG_OIL_TEMP_A_ON" );

  // get enumeration signal 4
  eVal = AfdxGetSignalInt( packet, "FLIGHT_GROUND_COND_3" );

  // get string signal 6
  len = AfdxGetSignalString( packet, "TEST_STRING14_CITY", 16, sVal );

  // get opaque signal 7
  len = AfdxGetSignalOpaque( packet, "TEST_OPAQUE14_IDENT", 16, oVal );
}