LabVIEW Scripting Main Board

[Lavezza]

Does anyone know how to group and ungroup controls on the front panel? We have some VIs with DBL controls and the front panel. I want to be able to select a DBL terminal on the block diagram and have the control replaced with a string control. For controls that aren't grouped, everything is fine. I find the selected terminal on the BD, get a reference to the control associated to the terminal and call the replace method with a string control style. But, if the control is part of a group, LV either freezes or crashes hard (disappears).

Thanks,

Pat

[Kamocat]

How do you move controls and indicators (and their labels) around on the block diagram?

I'm making a script to put a conditional disable shell around a VI so target-specific code can be disabled and simulated on a PC.

I have a feeling the best way to do it would be to create the conditional disable, place the subVI in it, and then place the controls outside of it and wire them through, but I'd really prefer to place the conditional disable structure around the subVI (so I can take advantage of auto-wiring).

[TiTou]

How can we disable the run-time shortcut menu of a control?

(the equivalent of : right clic on the control >> Advanced >> Run-Time Shortcut Menu >> Disable)

Cheers

[Darren]

Kamocat wrote:

How do you move controls and indicators (and their labels) around on the block diagram?

I'm making a script to put a conditional disable shell around a VI so target-specific code can be disabled and simulated on a PC.

I have a feeling the best way to do it would be to create the conditional disable, place the subVI in it, and then place the controls outside of it and wire them through, but I'd really prefer to place the conditional disable structure around the subVI (so I can take advantage of auto-wiring).

It is currently not possible to drop a structure on a diagram "around" existing code.  You do have to drop the structure, then move objects inside of it.  Once the object is inside, however, you can use the Connect Wires method of the Terminal class to connect terminals of the subVI inside the structure with terminals outside the structure, and the tunnels will be automatically created for you.

-D

[Jim_Kring]

This is one area of scripting that's really needed, IMO.  The work-around is pretty painful, since the scripting API for the Wire object is rather limited, too.

[Kamocat]

From a logical standpoint, I think a good way to implement it would be to place the structure around the selected objects.

Perhaps you can define the selection by source-to-sink.  (a cluster of two arrays of references.  The first is an array of the references for objects that source the data, and the second is an array of references to objects that sink the data.)  By specifying the sources and sinks, them (and everything in between) can be selected.

[Kamocat]

I've been having trouble finding a way to switch directly from a control on the front panel to its representation on the block diagram (or back).

I've been using "traverse", but it takes a second or two to find it.  Is there a more efficient method?

[DFGray]

If you have a control reference, you can use the Terminal property to get the BD reference (there are also property node and local variable properties).  From the block diagram, use the Control property of a control terminal.

[DFGray]

The best way I have found to do this is in your LabVIEW code.  Use the Mouse Down? event to toss right click events.  You can also use it to change the context menu.  See the LabVIEW help for details.

[Kamocat]

Thank you!

I thought the terminal property was the terminal on the connector pane.