Can I add Boolean programmatically?

[RingRoller]

Can I add a new boolean by clicking a boolean ?

I'll be appreciated if you attach a sample code.

Thank you.

[altenbach]

You can change the visibility of an existing booleans or add new elements to a booleans array.

You can add booleans using scripting, but that's editing.

Can you explain what you are trying to do?

[RingRoller]

I'll pick a point of screen with mouse and then a new booleans will appear at the point.

The point is that  I need to add more than 100 booleans.

How can I do that?

[altenbach]

Can you explain the purpose? A boolean is just a logic value. Do you want to add a boolean control or indicator?

Adding a boolean to the front pane is pretty useless unless that boolean has a function and is wired to the rest of the code. You cannot change code while running.

Maybe all you need is a 2D picture indicator where you would draw things as a function of mouse click.

Or you could have a 2D array of booleans (Array container transparent, FALSE state transparent, TRUE state looking like the boolean you want.)

[LLindenbauer]

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@RingRoller wrote:

How can I do that?

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Check out the example browser for VI-Scripting. You should find scripts like these:

https://forums.ni.com/t5/LabVIEW/Create-Control-From-Reference/td-p/1539816?profile.language=en

http://zone.ni.com/reference/en-XX/help/371361R-01/lvhowto/scripting_adding_objects/

However, as @altenbach wrote, these can only be used for editing. Most of them cannot be used on running VIs. For example, check this function: http://zone.ni.com/reference/en-XX/help/371361R-01/lvscript/vi_create_from_data_type/

In the "Remarks" section, look for "Settable when the VI is running" and "Available in Run-Time Engine".

If You could expand on why, when and where You want to create these 100 booleans, You may get advice for other solutions.

[altenbach]

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@altenbach wrote:

Or you could have a 2D array of booleans (Array container transparent, FALSE state transparent, TRUE state looking like the boolean you want.)

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Here's an invisible 2D array where clicking while the VI is running can make the boolean element appear and disappear.