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Event for Control.

Generated when the user changes the value of a control. You must read the terminal of a latched Boolean control in its Value Change event case.

LabVIEW generates this event even if the user enters the same value as the current control value.

Event Data Fields

Name	Description
Source	Source of the event. 0 LabVIEW UI 1 ActiveX 2 .NET 25 User Event n Other
Type	Type of event that occurred, such as Mouse Down, Value Change, Timeout, and so on.
Time	Value of the millisecond timer when the event occurred.
CtlRef	Reference to the control on which the event occurred.
OldVal	Value of the control before the data change.
NewVal	Value of the control after the data change.