CTRL+V works fine with "Key Down?" event in , but not when the VI is inserted into a SubPanel — any ideas?

[CarPA]

Hi everyone,

I'm working on a VI where I use the "Key Down?" event to detect user input, specifically to validate a String Control. The idea is to analyze every key the user presses, and also inspect the full string after a CTRL+V paste operation.

Everything works as expected when the VI runs standalone (i.e., in the context). However, when I insert the same VI into a SubPanel, the paste operation doesn't seem to trigger the event — it's like the "Key Down?" event isn't firing at all.

Has anyone encountered this behavior before? Is there a workaround to make CTRL+V detection work inside a SubPanel?

Thanks in advance!

 

[ZYOng · Accepted solution]

From Using Events with Subpanel Controls

If you configure a VI to handle an event and then configure the VI you load into a subpanel control to handle the same event, the top-level VI containing the subpanel control handles the event.

Bob Schor shared some workaround in Key Down Events in sub-Panel? 

[Walker34 · Accepted solution]

It is also possible to capture keys pressed on keyboard without event. It works on sub panels and also in vi's that are not in front :