In a VISA system, a that receives the operation SHALL attempt to close the given and vi viClose() vi free all related data structures. RULE 3.3.2 IF the value is passed to the operation, THEN a VISA system SHALL return the VI_NULL viClose() completion code VI_WARN_NULL_OBJECT.
In a VISA system, a vi that receives the viClose() operation SHALL attempt to close the given vi and free all related data structures. RULE 3.3.2 IF the value VI_NULL is passed to the viClose() operation, THEN a VISA system SHALL return the completion code VI_WARN_NULL_OBJECT.