Toggle Function Keys
A simple AppleScript that toggles the ”Use all F1, F2, etc. keys as standard function keys" setting found under System Preferences > Keyboard. Displays a message to Notification Center telling you which one is active. I use this script via Alfred with an assigned keyword.
Alfred v2
Just doubble click the ToggleFunctionKeys.alfredworkflow file and you are all set. The workflow uses the keyword "fn" by default.
Aldred v1
Make a new AppleScript extension and Copy paste the contents of the ToggleFunctionKeys.scpt file into the extension.
System preferences
Please note that you have to have ”Enable access for assistive devices” turned on for the application that runs this script.
- 10.9:
System Preferences > Security & Privacy > Privacy > Accessibility - 10.X:
System Preferences > Accessibility
Original AppleScript by kiodane.