current vi reference

[Xinghe.W]

Hi I'm new to Labview. I want to know how to get the current VI reference as the graph shown below. Functions>Application Contrl>Class Specifier Constant, but I couldn't find the VI option in its VI server class option.

 

[James.M]

As far as I know VI references are big rectangles:

[Xinghe.W]

I think they work the same way. I am just curious where is it from. There is no mark ahead any of its options.

[James.M]

Yeah, that is weird. Can you attach the control, or the VI?

You can't even cast a Generic reference to a VI reference because they're two different things reference types.

< This throws an error

[Xinghe.W]

Attached is that part of the vi file. Thank you very much for your help.

[James.M]

Ah, I'm back in 2014 still, no 2015. Maybe this is something new in 2015?

[Xinghe.W]

The code is made in LV 2013, I just copy it to my LV2015.

[Darren · Accepted solution]

The only way I know how to create a 'VI' class specifier constant is the following:

1. Drop a Class Specifier Constant and select it.

2. Press Ctrl-Space.

3. Type "VI".

4. Press Ctrl-B (the 'VI Server Rename' shortcut in Quick Drop).

There may be another way to do it, but this is the only way I know of. This functionality is available in LabVIEW 2010 and later.

[Gregory]

That code is from the JKI state machine. OpenG has a "Current VIs Reference" vi that you can use to quickly get the reference.

[Xinghe.W]

Thank you, this solved my problem.