The function
raise-interface
raises the window containing
pane
to the front of the screen. To push it to the back use lower-interface, and to iconify it use hide-interface.
(setq pane (capi:contain
(make-instance
'capi:text-input-pane)))
(capi:apply-in-pane-process
pane 'capi:lower-interface pane)
(capi:apply-in-pane-process
pane 'capi:raise-interface pane)
CAPI Reference Manual - 15 Dec 2011