Function: ibut:to-key-src
ibut:to-key-src is a function alias for hbut:to-key-src, defined in
hbut.el.
Signature
(ibut:to-key-src &optional FULL-FLAG)
Documentation
Return key source (usually unqualified) for current Hyperbole button.
Also set current buffer to key source. With optional FULL-FLAG when source is a pathname, return the full pathname.