© Wallace Wang 2017

Wallace Wang, macOS Programming for Absolute Beginners, 10.1007/978-1-4842-2662-9_17

17. Choosing Commands with Buttons

Wallace Wang

(1)San Diego, California, USA

Every program needs to give the user a way to control the computer. In the old days, that meant knowing how to type the proper commands to make a program work, but with today's graphical user interfaces, the easier way to control a program is to choose from a list of available commands. The simplest way to give a command to a program is through a button.

By displaying multiple buttons on the screen, a user interface offers multiple choices for the user at all times. Instead of memorizing cryptic commands, the user just needs to select a command by pointing at it with ...

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