|| Regardless, the values that the TCC variable function can
|| actually return ought to be distinguishable from values the
|| underlying API can return when it is run on a platform where TCC
|| is unavailable.
| There is no platform where the underlying API can be run that
| doesn't also support TCC.
Well, maybe I used the wrong term ("underlying API"). What I ought to
have requested was that the list enumerate only the actual range of the TCC
function %@WININFO, i.e., the set of values it can actually return.
Values indicating platforms where TCC will not run, if included at all,
should be distinguishable from the actual range. When one writes a program
to translate from the function's numeric value to a platform description
only the actual range is relevant.