How to determine if the user closed the app window?

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Rich006
Rich006 2023-4-24
回答： Kevin Holly 2023-4-24
I have a script that calls an App Designer mlapp as an interface for a user to enter information. How can I get my main script to determine if the user has closed the window (using the X in the title bar)?

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Kevin Holly
Kevin Holly 2023-4-24
When you run the app in your main script, you could assign a variable to its handle.
app = YourApp;
You can check if it is deleted with:
isvalid(app)
Another useful function is you could use is uiwait.
You could also add a Close Request Function to your app.

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