As a long-time Mac user, I once had to rely on Key Caps, an early Mac helper that would show you where special characters hid on a keyboard. Holding down Option and Shift-Option would reveal the secrets of π and ‰ and accent marks.
That feature never disappeared, though it did recede from view, and was renamed Keyboard Viewer. You may rarely need it—except when you’re trying to type a key that your keyboard doesn’t allow or you can’t find.
This might happen if you’ve got a wonky laptop keyboard that you’re planning to take in for replacement, or if you’re using a Mac set to a language you don’t speak or if you’re trying to enter characters in that language.
I’ve heard from readers who can’t type a particular key because something’s gone wrong with their hardware keyboard and they can’t summon up a replacement keyboard to plug in and use. With Keyboard Viewer, you can click keys and those characters are inserted wherever your cursor is. (One reader couldn’t enter their password in order to prep a machine to take in for repair, because the password contained…a character that the keyboard could no longer type.)
One limitation: You can only click keys that appear without the use of onscreen Shift or Option keys. For some reason, Apple doesn’t offer a way to click-lock those keys to perform combinations. However, if your physical keyboard can still generate an Option or Shift key click, you can use those real keys to access virtual ones.
In the Keyboard preference pane’s Input Sources tab, you can click the + button in the lower left and add keyboards of many languages. Check Show Input Menu in Menu Bar, and a tiny keyboard/Command key icon appears in the upper-right corner of your screen. (If you have multiple keyboards added, a flag or icon appears that’s associated with the keyboard currently selected, instead.)
As a bonus, the Keyboard Viewer also highlights keys as you type them, if you ever wanted to visualize your physical typing on screen.
This Mac 911 article is in response to a question submitted by Macworld reader Jack.
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