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C2xGetMessageHandle

Valid for: CANoe DE

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Function Syntax

  • long C2xGetMessageHandle(char* dbMessage); // form 1
  • long C2xGetMessageHandle(char* stationName, char* dbMessage); //form 2
  • long C2xGetMessageHandle(uint64 stationID, long sequenceNumber); //form 3
  • long C2xGetMessageHandle(char* stationName, uint64 stationID, long sequenceNumber); //form 4

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Description

This function returns the packet handle for a specified Car2x message. Form 3 & 4 only work for stations where one or more DENMs are active.

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Parameters

  • dbMessage: Name of the message
  • stationName: Name of the specified station
  • stationID: Id of the station that sends multiple DENM messages
  • sequenceNumber: Sequence number of the specified DENM messages

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Return Values

  • -1: General error, for example, functionality is not available
  • >0: Handle of the packet

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Example

//Form 1: Single DENM or other application message
long handle;
handle= C2xGetMessageHandle("DENM");

//Form 3: Multiple DENM active

long eeblPacketHdl = 0;
long emcyPacketHdl = 0;
long rwwPacketHdl = 0;
long causeCode = 0;
eeblPacketHdl = C2xGetMessageHandle(1,1);
emcyPacketHdl = C2xGetMessageHandle(1,2);
rwwPacketHdl  = C2xGetMessageHandle(1,3);

causeCode=C2xGetTokenInt64(eeblPacketHdl,"DENM", "denm::situation::eventType::causeCode");
Write("EEBL CauseCode: %d", causeCode);
causeCode=C2xGetTokenInt64(emcyPacketHdl,"DENM", "denm::situation::eventType::causeCode");
Write("Emergency Vehicle CauseCode: %d", causeCode);
causeCode=C2xGetTokenInt64(rwwPacketHdl,"DENM", "denm::situation::eventType::causeCode");
Write("Roadworks CauseCode: %d", causeCode);