If you change the
value of parameter vertical-scroll-bars (whatever the new & old
values) for an invisible frame, the value of parameter
visibility is also changed to t as a side effect. What's worse, the
frame remains physically invisible, in spite of the parameter
This is important if
you change the scroll-bar setting for all frames: it ends up making
the invisible frames inaccessible, because they are physically
invisible but their visibility parameter is set to t.
Changing the value
of other frame parameters doesn't seem to affect the visibility parameter (I
didn't test them all, however).
tttt) => (...(visibility)...)
tttt) => (...(visibility .
I use Emacs 20, so
it doesn't help me if this is fixed in Emacs 21. Is there a fix or
workaround for Emacs 20? modify-frame-parameters is built-in; is there an
equivalent lisp definition that could be corrected for the