at runtime, how can i tell if there is a connection to a terminal on a vi?

[estl]

The associated control is set for optional connection.  It would be better if I can make the determination from inside the vi.

[altenbach]

Give it a unlikely "special" default value, e.g. NaN for DBL, empty array for arrays, "-1" for I32 that is normally only positive, etc.

If the value is different from the default during execution, the input was wired. 🙂

[mikeporter]

For a good real-world example of how to do it check out the High-level File IO VIs that ship with LV. They are written such that if you give it a file name they open it, otherwise they open a dialog box to let you select the file.

Mike...