How can I get the control specifies a reference (by the script)?

By what method of property can I control that specifies a reference? (See an example of a reference to the code snippet).

When I reference (ControlReferenceConstant in the script), I can't get control of the reference points to. I guess it's done with the property ' reference control bound to. " But I don't know how to convert the variant to the control. Conversion to the control class does not work. (See excerpt below). Conversion does not return an error, but the reference is not valid.

A few details: the variant contains a reference to a control and has a name matching [2]. The type of reference data is just as well [3]. But the reference is 0, which is of course invalid digital show (seen in the probe and indicator).

An entire book would be to iterate through all controls (indicators included as well as items in clusters and berries). The label could be the first check. But because they do not have to be unique is not enough. As a second step could be verified that the ReferenceConstant is listed by the property "nodes of control."(delede contrôle) reference ".

[1] LV12 helps ControlReferenceConstant properties:

http://zone.NI.com/reference/en-XX/help/371361J-01/lvscript/controlreferenceconstant_p/

[2] get the variant name with:

Select 'Type of Show' in the context menu of indicator varying or

OpenG VI 'get name of data '.

NIs in \Utility\VariantDataType\GetTypeInfo.vi VI

[3] get the Refnum Type in the variant with

NIs in \Utility\VariantDataType\GetRefnumInfo.vi VI

If you look at using the property, you will see that it actually returns the data type of the node, not the actual control. That's way, you cannot use the reference in variant - it's not a real reference to a control.

I think it's all just an oversight that no one added to the relevant property to the node, but there is a simpler solution for you that I think should work, that should come to him on the other side - for each control in the public Service, get the property [] of control reference nodes and it look for the reference of your node. If you found it, the node made reference to this control.

Tags: NI Software

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