Chapter 20. GUI Basics and Event Handling
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Tips for Slimming Down Handler Code
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Summary of Event Handling
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Exercises
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Some Light Relief—The Mouse That Roared
All GUI libraries have four basic areas of functionality:
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Creation of user interface “controls” or components, such as scroll bars, buttons, and labels.
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Support for giving behavior to the controls by connecting GUI events (for example, clicking a button) to code that you write.
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Support for grouping and arranging the controls on the screen.
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Support for accessing window manager facilities, such as specifying which window has the input focus, reading JPEG and other image files, and printing.
Related graphics libraries also provide support for graphics ...
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