tkinter x button override

[Joseph Holland King]

after creating a frame with the tkinter module, it automatically creates a
close button (x on the top right). is there anyway to override the function
of this button? i haven't found any documentation so far. thank you.

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Joseph Holland King  | "God whispers to us in our pleasures, speaks in our
                     |  conscience, but shouts in our pains: it is His
                     |  megaphone to rouse a deaf world." C. S. Lewis