x-resolve-font-name

x-resolve-font-name is a compiled Lisp function in `faces.el'.

(x-resolve-font-name PATTERN &optional FACE FRAME)

Return a font name matching PATTERN.
All wildcards in PATTERN are instantiated.
If PATTERN is nil, return the name of the frame's base font, which never
contains wildcards.
Given optional arguments FACE and FRAME, return a font which is
also the same size as FACE on FRAME, or fail.