bug#15684: 24.3.50; `set-frame-parameter' broken for parameter `minibuffer'

bug#15684: 24.3.50; `set-frame-parameter' broken for parameter `minibuffer'

[Drew Adams]

emacs -Q

C-x 5 2

M-: (pp-eval-expression '(frame-parameters))

Value of parameter `minibuffer' is a window.

M-: (set-frame-parameter nil 'minibuffer t)

M-: (pp-eval-expression '(frame-parameters))

Value of parameter `minibuffer' is unchanged: still the window.
Should be t.

M-: (set-frame-parameter nil 'minibuffer nil)

Value of parameter `minibuffer' is unchanged: still the window.
Should be nil.

M-x set-variable default-frame-alist

((tool-bar-lines . 0)
 (menu-bar-lines . 1)
 (minibuffer))

C-x 5 2

The new frame is created without a minibuffer, as it should be.  Check
it with `M-: (pp-eval-expression '(frame-parameters))', with that frame
selected.

M-: (set-frame-parameter nil 'minibuffer t)

M-: (pp-eval-expression '(frame-parameters))

Value of parameter `minibuffer' is unchanged: still nil.  Should be t.

See Subject line. 



In GNU Emacs 24.3.50.1 (i686-pc-mingw32)
 of 2013-10-19 on LEG570
Bzr revision: 114715 rgm@gnu.org-20131019023520-s8mwtib7xcx9e05w
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --enable-checking 'CFLAGS=-O0 -g3' CPPFLAGS=-DGLYPH_DEBUG=1'

bug#15684: 24.3.50; `set-frame-parameter' broken for parameter `minibuffer'

[martin rudalics]

 > emacs -Q
 >
 > C-x 5 2
 >
 > M-: (pp-eval-expression '(frame-parameters))
 >
 > Value of parameter `minibuffer' is a window.
 >
 > M-: (set-frame-parameter nil 'minibuffer t)
 >
 > M-: (pp-eval-expression '(frame-parameters))
 >
 > Value of parameter `minibuffer' is unchanged: still the window.
 > Should be t.
 >
 > M-: (set-frame-parameter nil 'minibuffer nil)
 >
 > Value of parameter `minibuffer' is unchanged: still the window.
 > Should be nil.
 >
 > M-x set-variable default-frame-alist
 >
 > ((tool-bar-lines . 0)
 >  (menu-bar-lines . 1)
 >  (minibuffer))
 >
 > C-x 5 2
 >
 > The new frame is created without a minibuffer, as it should be.  Check
 > it with `M-: (pp-eval-expression '(frame-parameters))', with that frame
 > selected.
 >
 > M-: (set-frame-parameter nil 'minibuffer t)
 >
 > M-: (pp-eval-expression '(frame-parameters))
 >
 > Value of parameter `minibuffer' is unchanged: still nil.  Should be t.
 >
 > See Subject line.

Please read the Elisp manual before submitting such reports:


These frame parameters, meaningful on all kinds of terminals, deal with
which buffers have been, or should, be displayed in the frame.

`minibuffer'
      Whether this frame has its own minibuffer.  The value `t' means
      yes, `nil' means no, `only' means this frame is just a minibuffer.
      If the value is a minibuffer window (in some other frame), the
      frame uses that minibuffer.

      This frame parameter takes effect when the frame is created, and
      can not be changed afterwards.


Thanks, martin

bug#15684: 24.3.50; `set-frame-parameter' broken for parameter `minibuffer'

[Drew Adams]

>       This frame parameter takes effect when the frame is created,
>       and can not be changed afterwards.

Sorry about that.  I see now that that sentence was added in Emacs 23.

I've closed the bug.  Thx.

(FWIW, minor typo "can not" could be fixed to "cannot".)