The F-Lock key, introduced by
Microsoft
Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washi ...
in 2001, toggles the state of the
function key
A function key is a key on a computer or terminal keyboard that can be programmed so as to cause an operating system command interpreter or application program to perform certain actions, a form of soft key. On some keyboards/computers, function ...
s. When on, keys F1 to F12 behave as applicable, with meanings defined by the application being used at the time. When off, new behaviour is used: F5 means "open", F10 means "spell" etc. In early models, the state reverted to off at each reboot or keyboard reset, but later models retained F-Lock state across reboots.
Other keyboard manufacturers (such as
Logitech
Logitech International S.A. ( ; often shortened to Logi) is a Swiss multinational manufacturer of computer peripherals and software, with headquarters in Lausanne, Switzerland, and Newark, California. The company has offices throughout Europe ...
and
Viewsonic) have also implemented the F-Lock onto their keyboards.
Issues
The introduction of F-Lock was marked by criticism on several points. First, the behaviour was unintuitive: pressing a key such as F4 by default no longer had its normal meaning, so combinations such as appeared not to work.
Secondly, the choice of secondary function assigned to each key appeared to be arbitrary: whereas F7 was the traditional key for spell-check (used notably by Microsoft itself in its Office products), F7 was assigned the function of "reply", and spell-check was assigned to F10. This caused strong criticism from some commentators.
Pressing F2 in Windows Explorer in attempt to rename a file would instead undo an earlier file operation, with potentially disastrous consequences if the actual effect went silently unnoticed.
Because of such concerns, a number of methods for disabling the F-Lock function appeared on the web.
Many Windows/PC users have found a workaround using Microsoft's
Intellitype Pro software, which allows a user to assign keystrokes/macros to the function and accessory keys. For example, assigning a macro to the function key renders the F-lock issue moot, since the OS will interpret the key press as F1 regardless of the F-lock state.
Functions
The new behaviours assigned to the keys are as follows:
External links
F-Lock Key XML fixF-Lock Key Eliminator for Linux
{{keyboard keys
Lock keys