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VI Type Property

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
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Short Name: VIType

Requires: Base Development System

Class: VI Properties

To Use: Create a property.

Indicates the type of VI.


0invalid VI type—An invalid reference to a VI.
1Standard VI—A VI that contains a front panel and block diagram.
2Control VI—A subVI that defines a custom control or indicator.
3Global VI—A subVI you create when creating global variables.
4Polymorphic VI—A subVI that is an instance of a polymorphic VI.
5Configuration VI—This type is not supported.
6SubSystem—A subVI for the LabVIEW Control Design and Simulation Module that you can place only on a simulation diagram.
7Facade VI—A subVI that LabVIEW creates when you create an XControl. A Facade VI represents a Facade ability, which defines the appearance of an XControl.
8Method VI—A subVI that LabVIEW creates for each XControl method you create and add to the XControl Library.
9Statechart Diagram VI—A subVI for the LabVIEW Statechart Module that you can place only on a statechart diagram.


The following table lists the characteristics of this property.

Data type
PermissionsRead Only
Available in Run-Time EngineYes (Read Only)
Available in Real-Time Operating SystemYes
Settable when the VI is runningNo
Loads the front panel into memoryNo
Need to authenticate before useNo
Loads the block diagram into memoryNo
Remote access allowedYes
Must wait until user interface is idleNo
Available with control VIsYes
Available with global VIsYes
Available with strict type definitionsNo
Available with polymorphic VIsYes


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