key_auto_repeat/[3,4] key_auto_repeat(+Displayable, +AutoRepeatMap,
-Key, -State)
key_auto_repeat(+AutoRepeatMap, -Key, -State)
Allows the user to find out if a key has auto repeat enabled or not.
Displayable is a ProXL Displayable. If omitted, the default Display is used.
AutoRepeatMap is an auto repeat keymap, typically obtained by
get_keyboard_attributes/N.
Key is the name of a key.
State is either on or off.