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This function allows to control special features of a CAN message.

Prototype

CPU_INT16SINT16S CanMsgIoCtl(CPU_INT16SINT16S  msgId,

                       CPU_INT16UINT16U  func,

                       void       *argp);

Parameter

Meaning

msgId

Device id, returned by CanMsgOpen()

func

Function Code

argp

Pointer to argument, specific to the function code

Additional Information

Function Code

Meaning

CANMSG_IS_CHANGED

Checks all linked signals of the message for changed status. If a least on signal indicates changed, set the flag to TRUE of the given argument pointer (CPU_BOOLEAN *)

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