See the menu-bar icons in Figure 4-9? Apple calls them Menu Extras, but Mac fans on the Internet have named them menulets. Each is both an indicator and a menu that provides direct access to certain settings in System Preferences. One lets you adjust your Mac's speaker volume; another lets you change the screen resolution; yet another shows you the remaining power in your laptop battery; and so on.
Figure 4-9. These little guys are the direct descendants of the controls once found on the Mac OS 9 Control Strip or the Windows system
To summon the various menulets, you generally visit a certain pane of System Preferences (System Preferences) and turn on a checkbox called, for example, "Show volume in menu bar." Here's a rundown of the various Apple menulets that you may encounter, complete with instructions on where to find this magic on/off checkbox for each:
The following descriptions indicate the official, authorized steps for installing a menulet. There is, however, a folder on your hard drive that contains 25 of them in a single window, so that you can install one with a quick double-click. To find them, open your hard drive→System→Library→CoreServices→Menu Extras folder.
AirPort lets you turn your AirPort card on or off, join existing AirPort wireless networks, and create your own private ones. To find the "Show" checkbox: Open System Preferences →Network. From the "Show" pop-up menu, choose AirPort.
Battery shows how much power remains in your laptop's battery. To find the "Show" checkbox: Open System Preferences→Energy Saver→Options tab.
Bluetooth connects to Bluetooth devices, "pairs" your Mac with a cellphone, and so on. To find the "Show" checkbox: Open System Preferences→Bluetooth. The "Show Bluetooth status in the menu bar" checkbox appears at the bottom of the Settings tab.
Clock is the standard menu-bar clock that's been sitting at the upper-right corner of your screen from Day 1. Click it to open a menu where you can check today's date, convert the menu-bar display to a tiny analog clock, and so on. To find the "Show" checkbox: Open System Preferences→Date & Time. On the Clock tab, turn on "Show the date and time."
Displays adjusts screen resolution. On Macs with a projector or second monitor attached, it lets you turn screen mirroring on or off—a tremendous convenience to anyone who gives PowerPoint or Keynote presentations. To find the "Show" checkbox: Open System Preferences→Displays→Display tab.
You'll discover that its wording changes: "Open Combo Drive," "Close DVD-ROM Drive," "Eject [Name of Disc]," or whatever, to reflect your particular drive type and what's in it at the moment.
Fax reveals the current status of a fax you're sending or receiving, so you're not kept in suspense. To find the "Show" checkbox: Open System Preferences→Print & Fax, and then click Faxing.
Thanks to a feature called portable Home folders, you can take your laptop on the road and do work—and then, on your return, have the changes synced automatically to your main machine at work over the network. Or not automatically; this menulet's Sync Home Now command performs this synchronization on demand.
iChat is a quick way to let the world know, via iChat and the Internet (iChat), that you're away from your keyboard, or available and ready to chat. Via the Buddy List command, it's also a quick way to open iChat itself. To find the "Show" checkbox: Open iChat; it's in your Applications folder. Choose iChat→Preferences, click the General button, and turn on "Show status in menu bar."
Inkturns the Write Anywhere feature on and off as you use your graphics tablet. (That may not mean much to you until you've read about the Ink feature, described on The VoiceOver Master Keyboard List.) To find the "Show" checkbox: Open the Ink panel of System Preferences. Even so, the menulet doesn't appear unless a graphics tablet is attached.
Keychain. This menulet isn't represented by an icon in the Menu Extras folder, but it's still useful if you use Leopard's Keychain feature (Locking and unlocking the Keychain). The menulet lets you do things like opening the Security pane of System Preferences and locking a Keychain. To find the "Show" checkbox: Open your Applications→Utilities folder. Open the Keychain Access program, and then open the Keychain Access→Preferences→General tab.
PCCard ejects a PC card that you've inserted into the slot in your laptop, if it has such a slot. To make it appear, open your System→Library→CoreServices→Menu Extras folder, and then double-click the PCCard.menu icon.
PPPoE (PPP over Ethernet) lets you control certain kinds of DSL connections. To find the "Show" checkbox: Open System Preferences→Network. From the "Show" pop-up menu, choose Built-in Ethernet. Click the PPPoE tab button.
Remote Desktop is a program, sold separately, that lets teachersor system administrators tap into your Mac from across the network. In fact, they can actually see what's on your screen, move the cursoraround, and soon. The menulet lets you do things like turning remote control on and off or sending a message to the administrator. To find the "Show" checkbox: Open System Preferences→Sharing, and then click Apple Remote Desktop.
Script menu lists a variety of useful, ready-to-run AppleScript programs (see The Script Menu). To find the "Show" checkbox: Open your Applications folder, and then open the program called AppleScript Utility.
Syncis useful only if you have a .Mac account (.Mac Services)—but in that case, it's very handy. It lets you start and stop the synchronization of your Mac's Web bookmarks, calendar, address book, Keychains, and email with another Mac across the Internet, and it always lets you know the date of your last sync. (Syncing is described in more detail in Chapter 19.) To find the "Show" checkbox: Open System Preferences→. Mac, and then click Sync.
TextInput (officially named the Input Menu) makes it easy for you to switch among different text input modes . You're probably most familiar with the normal keyboard. But what if your language uses a different alphabet, like Russian, or thousands of characters, like Chinese? This menulet summons and dismisses the alternative keyboards and input methods needed for these other systems. Details on Input Menu Tab. To find the "Show" checkbox: Open System Preferences →International. Click the Input Menu tab.
You also use this menulet when you're trying to figure out how to type a certain symbol like ¥ or § or . You use the menulet to open the Character Palette and Keyboard Viewer—two great character-finding tools that are described in System Preferences.
UniversalAccess, new in Leopard, offers simple on/off status indicators for features that are designed to help with visual, hearing, and muscle impairments. System Preferences has a rundown of what they do. To find the "Show" checkbox: Open System Preferences→Universal Access.
User identifies the account holder (Chapter 12) who's logged in at the moment. To make this menulet appear (in bold, at the far right end of the menu bar), turn on fast user switching, which is described on Fast User Switching.
Verizon starts and stops your laptop's connection to the Internet via Broadband Access, Verizon's glorious high-speed cellularservice (meaning you can get online almost anywhere—no Wi-Fi required). This service requires a BroadbandAccess PC card, ExpressCard, or external USB thingie from Verizon. Just slip said device into your laptop—and pay $60 a month.
Volume, of course, adjusts your Mac's speaker or headphone volume. To find the "Show" checkbox: Open System Preferences→Sound.
VPNstands for virtual private networking, which allows you to tap into a corporation's network so you can, for example, check your work email from home. You can use the menulet to connect and disconnect, for example. To find the "Show" checkbox: Open the program called Internet Connect (in your Applications folder). Click the VPN button.
To remove a menulet, ⌘-drag it off of your menu bar, or turn off the corresponding checkbox in System Preferences. You can also rearrange them by ⌘-dragging them horizontally.
These little guys are useful, good-looking, and respectful of your screen space. The world could use more inventions like menulets.