troubleshooting Question

counter in c# / wpf

Avatar of Natan1978
Natan1978Flag for United States of America asked on
C#
14 Comments1 Solution765 ViewsLast Modified:
hello
i want to creat counter that after user open application so it is start count his time he is use app and after xxx time messge box jump and ask him to approve that he is working on app and not go out, and other option is shutdown app.

how i do this?

thanks
ASKER CERTIFIED SOLUTION
Minh Võ Công

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