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VI Reference Property

LabVIEW 2013 Help

Edition Date: June 2013

Part Number: 371361K-01

»View Product Info

Short Name: VIReference

Requires: Base Development System

Class: ProjectItem Properties

To Use: Create a property.

If the project item refers to a VI, this property returns a reference to the VI. Otherwise, this property returns Not a Refnum. You can use this reference with the VI properties.

Note  The VI Reference does not record changes to the VI. If you use this reference for editing the VI, you will not be prompted to save when the reference closes.

Note  The LabVIEW Datalogging and Supervisory Control Module supports this property in the Run-Time Engine.


The following table lists the characteristics of this property.

Data type
PermissionsRead Only
Available in Run-Time EngineYes
Available in Real-Time Operating SystemNo
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 idleYes
Available with control VIsNo
Available with global VIsNo
Available with strict type definitionsNo
Available with polymorphic VIsNo


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