GUIs don't just process events. They also handle data.
Almost all GUI applications need to read user data, and choosing the right widgets can change your interface from data entry hell to user heaven. Widgets can accept plain text, or just present a menu of options. There are lots of different widgets out there, which means there are lots of choices, too. And, of course, making the right choice can make all the difference. It's time to take your GUI program to the next level.
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