K

key
An entry (or node) in the registry. A key may have one or more values, subkeys, or both. With the exception of four predefined keys, all keys are subkeys of other keys. See also registry, subkey.
keyboard accelerator
A keystroke or combination of keystrokes that sends a command message to the specified application window.
keyboard focus
A property of the window currently receiving keyboard input. Only one window at a time can have the keyboard focus. See also window.