i am trying to make a user authentication dialog for users to login and be authenticated before they can access the system.
1. How do i make a database of all the users so that every users can be checked before allowed access? such that should a user not be part of those in the database then they will not be allowed access and get an error message telling the user that their login details are either wrong or they are not registered.
2. How do i receive input from an username edit_ctl and a password edit_ctl once the user has clicked on the login push button?
3. Is there a user authentication example that i can use to learn?
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