Two button dialogue - fire once

I have an application where I need to get a lot of responses from the user through two button dialog boxes. I need to feel the change of State of a locked DI and when he goes UP, display a dialog of two buttons for the user to interact. As this happens inside a while loop 100ms, I need to remove the dialog box after the user selection is made. Otherwise the pop up will happen several times as the DI is locked in a HIGH State.

While I was able to get the feature with a registry change (see attachment to LV2009), I was wondering if there was a better way to do this kind of "once-only-messages?

Thank you

It is not a good idea to change the status of the digital input which is "read only".

The final VI with the required change is as below:

Tags: NI Software

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