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FilledSmallSquare $FrontEnd is a global variable that specifies to what front end object, if any, the kernel is currently connected.

FilledSmallSquare $FrontEnd is either a FrontEndObject, or Null.

FilledSmallSquare You can use Options and SetOptions on $FrontEnd to read and set global options for the front end.

FilledSmallSquare See Section 2.11.4.

FilledSmallSquare See also: $Notebooks.

FilledSmallSquare New in Version 3.