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.

Remarks

The following table lists the characteristics of this property.

Short Name VIReference
Data type cvirn.png
Permissions Read Only
Available in Run-Time Engine Yes
Available in Real-Time Operating System No
Settable when the VI is running No
Loads the front panel into memory No
Need to authenticate before use No
Loads the block diagram into memory No
Remote access allowed Yes