How Can I Record Which Button Was Pressed in a Message Popup Step in TestStand?

Updated Sep 17, 2025

Environment

Software

  • TestStand

I want to know which button a user pressed in a message popup step and save this to a local variable

To do this, go in to the Message Popup step Properties tab:
Go to the Post-Expression box in the Expressions settings:
 
Enter the following expression:
Locals.<variable name> = Step.Result.ButtonHit
This will retrieve the name of the button that was pressed (Step.Result.ButtonHit) and save it in the specified local variable as a string.

Once implemented, select a button on your message pop up step - In this example the second button "2" has been selected. 



A break point is set to view the updated variables: 

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