EVT_BACNET_CLIENTVALUECALLBACK (STRUCT)

TYPE EVT_BACNET_CLIENTVALUECALLBACK : STRUCT

Declaration of the value receiving callback from the BACnet user application.

This is the declaration for the callback which is registered with BACnetRegisterClientDataPoint. It is called in case of the reception of a new value for the registered device object property.

InOut:

Name	Type	Comment
devId	IEC_BACNET_INST_NUMBER	The BACnet device instance number from which the value was received.
pObjId	POINTER TO IEC_BACNET_OBJECT_ID	A pointer to the object identifier from which object the value was received.
propId	IEC_BACNET_PROPERTY_ID	The property identifier from which property the value was received.
index	IEC_BACNET_ARRAY_INDEX	The property index from which property the value was received. If no array is accessed this has a value of BACNET_VOID_INDEX (-1).
pValue	POINTER TO IEC_BACNET_PROPERTY_CONTENTS	The property contents structure which holds the current received value. This may be NULL in case some error occurred and no value could be acquired yet.
status	IEC_BACNET_STATUS	The current status of the connection and subscription to the BACnet device.
pError	POINTER TO IEC_BACNET_ERROR	A pointer to enhanced error information if provided by the BACnet device. This may be NULL in case there isn’t any error information available.
bValuePolled	IEC_BACNET_BOOLEAN	In case of an enabled fallback to use polling instead of COV(-P) this flag indicates if the returned value has been received over COV(-P). In this case the value is FALSE. Or the returned value has been received over services read-property(-multiple). In this case the value is TRUE.
pUserArg	POINTER TO BYTE	A pointer for user application purposes. This pointer is the same pointer which was given by call to BACnetRegisterClientDataPoint on registration.