Didier Verna writes:
X-Mailer: Gnus v5.6.24/XEmacs 21.2(beta1) - "Aeolus"
Speaking of display glitches that should be corrected some day, here's
one (of several) in the toolbar code.
Toolbar buttons have three fields: glyph-list, function-to-call, and
active-p. The only ways I've found so far of forcing toolbar button
updates on conditional buttons is to either interactively call C-l
(recenter), or to do
(set-specifier default-toolbar (copy-specifier default-toolbar))
from Lisp. There's the function `force-mode-line-update'/`redraw-modeline',
but it doesn't work with toolbars.:-(