gnus-select-frame-set-input-focus

gnus-select-frame-set-input-focus is an alias for `select-frame-set-input-focus' in `gnus-util.el'.

(gnus-select-frame-set-input-focus FRAME &optional NORECORD)

Select FRAME, raise it, and set input focus, if possible.
If `mouse-autoselect-window' is non-nil, also move mouse pointer
to FRAME's selected window. Otherwise, if `focus-follows-mouse'
is non-nil, move mouse cursor to FRAME.

Optional argument NORECORD means to neither change the order of
recently selected windows nor the buffer list.