Availability:built-in
tty_get_capability(+Name,
+Type, -Result)Get the capability named Name from the termcap library. See
termcap(5) for the capability names. Type specifies the type
of the expected result, and is one of string, number
or
bool. String results are returned as an atom, number
results as an integer, and bool results as the atom on or off.
If an option cannot be found, this predicate fails silently. The results
are only computed once. Successive queries on the same capability are
fast.