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| Radio Buttons |
Radio buttons are used for mutually
exclusive settings. Clicking on one causes any other that has been
pressed to pop up, just like on an old car radio. The button with the
dot in the middle is the one that has been selected. Sometimes
you'll see more than one group of buttons, with a
separate outline around each group. In this case, you can select one
radio button from each group. Functionally, a group of radio buttons
works like a standard listbox (see Figure 3-20).
Figure 3-22. Two radio buttons are used to allow you to choose only one of the available Start menu styles
using the Tab key to jump between controls, Windows considers a group
of radio buttons to be a single control. When the Tab key places the
focus on a single radio button,
you'll need to use the arrow keys to select a
different one; otherwise, another press of the Tab key will jump to a
different control, seemingly skipping a whole bunch of radio buttons.
