special-control-key

Enables or disables special Control key handling (MacOS). When Control is treated as a special key, the system's key-mapper is called without Control for keyboard translations. For some languages, Control key presses must be seen by the system translation, so this mode should be turned off.

• (special-control-key on?) -> void
      on? : boolean

  If on? is #f, Control is passed to the system translation as normal.