Unregister For Events Function

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
View Product Info

DOWNLOAD (Windows Only)

LabVIEW 2016 Help
LabVIEW 2017 Help
LabVIEW 2018 Help
LabVIEW 2019 Help
LabVIEW 2020 Help

Owning Palette: Events Functions

Requires: Base Development System

Unregisters all events associated with an event registration refnum.

Event structures that use this event registration refnum no longer receive any dynamic events. National Instruments recommends that you unregister for events when you no longer need to handle them. If you do not unregister for events, LabVIEW continues to generate and queue the events as long as the VI runs, even if no Event structure is waiting to handle them, which consumes memory and can hang the VI if you enable front panel locking for the events.

event registration refnum is a reference to an existing event registration a Register For Events function created.
error in describes error conditions that occur before this node runs. With the following exception, this input provides standard error in functionality.

This node runs normally even if an error occurred before this node runs.
error out contains error information. This output provides standard error out functionality.


Not Helpful