frameset--find-frame-if

frameset--find-frame-if is a compiled Lisp function in `frameset.el'.

(frameset--find-frame-if PREDICATE DISPLAY &rest ARGS)

Find a reusable frame satisfying PREDICATE.
Look through available frames whose display property matches DISPLAY
and return the first one for which (PREDICATE frame ARGS) returns t.
If PREDICATE is nil, it is always satisfied. Internal use only.