On Sun, 8 Sept 2024 at 17:54, martin rudalics <rudalics@gmx.at> wrote:
 > If not, then we should try to understand why not.  Please with pristine
 >> master replace the initial assignment of 'frame-size-history' in frame.c
 >> from
 >>
 >>     frame_size_history = Qnil;
 >>
 >> to
 >>
 >>     frame_size_history = Fcons (make_fixnum (100), Qnil);
 >>
 >> start Emacs -Q and tell me the contents of the *frame-size-history*
 >> buffer.
 >
 >
 > There isn't one.

Silly me.  You have to evaluate

(frame--size-history)

first.  Then it should be there.

Yes, sorry, I didn't think of it either. Here's the output:

Frame size history of #<frame  *Minibuf-1* - GNU Emacs at ecls 0x59a9a967e790>
x_create_frame_1 (5), TS=80x25~>1280x875, NS=80x25~>1296x875, IS=80x25~>1296x875, MS=32x70 IH IV
gui_figure_window_size (5), TS=1280x875~>1280x1260, TC=80x25~>80x36, NS=1296x875~>1296x1260, IS=1296x875~>1296x1260, MS=32x70 IH IV
scroll-bar-width (3), NS=1296x1260~>1328x1260, IS=1296x1260~>1328x1260, MS=160x175
scroll-bar-height (3), MS=160x175
menu-bar-lines (2), MS=160x175
x_create_frame_2 (0), MS=160x175
xg_frame_set_char_size, invisible, PS=1328x1260, XS=1328x1260, DS=1328x1260
xg_frame_set_char_size (5), MS=32x70 IH IV
x_make_frame_visible
MapNotify, not hidden & not iconified, PS=1328x1260, DS=1328x1260
ConfigureNotify, PS=1328x1260, XS=1328x1260, DS=1328x1260
xg_frame_resized, unchanged, PS=1328x1260, XS=1328x1260
ConfigureNotify, PS=1328x1260, XS=1328x1258, DS=1328x1260
xg_frame_resized, changed, PS=1328x1260, XS=1328x1258
change_frame_size_1, delayed, PS=1328x1260, XS=1328x1258, DS=1328x1260
change_frame_size (5), TS=1280x1260~>1280x1258, TC=80x36~>80x35, NS=1328x1260~>1328x1258, IS=1328x1260~>1328x1258, MS=32x70 IH IV
tool-bar-lines (2), MS=160x175
xg_frame_set_char_size, visible, PS=1328x1258, XS=1328x1258
ConfigureNotify, PS=1328x1258, XS=1328x1258
xg_frame_resized, unchanged, PS=1328x1258, XS=1328x1258
ConfigureNotify, PS=1328x1258, XS=1280x1354
xg_frame_resized, changed, PS=1328x1258, XS=1280x1354
change_frame_size_1, delayed, PS=1328x1258, XS=1280x1354
change_frame_size (5), TS=1280x1258~>1232x1354, TC=80x35~>77x38, NS=1328x1258~>1280x1354, IS=1328x1258~>1280x1354, MS=32x70 IH IV
set_window_configuration (4), MS=160x175 IH IV

--
https://rrt.sc3d.org