The Brightness Down key.
The Brightness Down key. Typically controls the display brightness.
The Brightness Up key.
The Brightness Up key. Typically controls the display brightness.
The Camera key.
Toggle removable media to eject (open) and insert (close) state.
The Hibernate key.
The Hibernate key. This key saves the current state of the computer to disk so that it can be restored. The computer will then shutdown.
The LogOff key.
Toggle power state.
Toggle power state.
Note: Some devices might not expose this key to the operating environment.
The PowerOff key.
The PowerOff key. Sometime called "PowerDown".
The Print Screen (PrintScrn, SnapShot) key, to initiate print-screen function.
The Standby key.
The Standby key. This key turns off the display and places the computer into a low-power mode without completely shutting down. It is sometimes called the "Suspend" or "Sleep" key.
The WakeUp key.