curs_inch(3) on FreeBSD

The text cc4abf8e04b7, as FreeBSD 2.1.7.1-RELEASE, FreeBSD 2.1.7-RELEASE, FreeBSD 2.1.5-RELEASE, FreeBSD 2.0.5-RELEASE shipped it.

get a character and attributes from a ncurses window

curs_inch(3) on FreeBSD now