MacBook Pro (Early 2008) and later: Key placement and functionality
Summary
The keyboard introduced with the MacBook Pro (Early 2008) and later computers includes several new features. One of the most noticeable changes is that it includes additional media keys and newly-labeled keys for Exposé and Dashboard.
Products Affected
Keyboards, MacBook Pro (17-inch, Mid 2009), MacBook Pro (13-inch, Mid 2009), MacBook Pro (15-inch, Mid 2009), MacBook Pro (15-inch, 2.53GHz, Mid 2009), MacBook Pro (17-inch, Early 2008), MacBook Pro (15-inch Early 2008), MacBook Pro (17-inch, Early 2009), MacBook Pro (15-inch, Late 2008), MacBook Pro (17-inch, Late 2008)

- F1 - Reduce Display Brightness
- F2 - Increase Display Brightness
- F3 - Exposé
- F4 - Dashboard
- F5 - Reduce Keyboard Brightness
- F6 - Increase Keyboard Brightness
- F7 - Previous track
- F8 - Play/Pause
- F9 - Next track
- F10 - Mute
- F11 - Volume down
- F12 - Volume up
- The Exposé key is now F3 and has expanded functions:
- Pressing the Exposé key - Exposé (all windows)
- Pressing Ctrl+Exposé key - Exposé (application windows)
- Pressing Command+Exposé key - Exposé (desktop)
- To toggle between Extended Desktop and Video Mirroring when using an external display, press Command and F1.
- To detect displays, press Command and F2.