5 Creating User Interfaces and Widgets
Sketch 42: A Button
After text from the console or a file and basic mouse gestures, the simple button is the third most popular user input method. It is ubiquitous on web pages, game screens, and any system that requires on/off or yes/no choices from a user. It is, of course, based on the old-fashioned push button that has existed for a long time as an electrical device, and it works in a natural way: push the button and something happens.
Graphically, a button is really just a rectangle. It is usually filled with a color and has a text label or image to indicate its function. When the user clicks the ...
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