EVT_BACNET_CLIENT_VALUE (STRUCT)¶

TYPE EVT_BACNET_CLIENT_VALUE : STRUCT

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

This is the declaration prototype for the callback function 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.
`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 IEC_BACNET_BYTE	A pointer for user application purposes. This pointer is the same pointer which was given by call to ::BACnetRegisterClientDataPoint on registration.