Is a control connected in a higher level VI?

[Joost Schouten]

From VI 'A' i'am calling VI 'B'. B has several controls which can be connected, but not al are necessary to run the VI. Is there a possibility to find out which controls of frontpanel B are connected and written by A? Normally the default value is filled in when no connection is made, but i want to know if there is a flag or so for this.

Joost Schouten

[mfitzsimons]

A proper written VI should have REQUIRED set on pins that are needed to run the VI.  For pins that have a defaults value they should be Labeled by the author as Temperature (20) where 20 is the default value.  To answer your question is no, there is not a falg.  You will have to go to the connector pane and inspect Pin by Pin and figure out the connections.  Double click the pin on the connector pane and it will bring you to the control.

[Joost Schouten]

maybe my question wasn't very clear, i don't need to know which connections are made on the connector, but wich are connected in the higher level VI... Hopefully these VI's make my question clear...

[GerdW]

Hi Joost,

you can only do this by checking for the default value. You can set default values like NaN (for floats) or empty string/path/array to make the detection easier...