Frame shifted upwards upon changing font size

Frame shifted upwards upon changing font size

[uzibalqa]

I have a setup that opens emacs at the centre of the screen.

But then I want to have a specific font size and call

(set-face-attribute 'default nil :height 160 :weight 'bold)

This puts the menu-bar outside the screen.  What can I do to keep the window at the
center of the screen?

This is the function I use

(defun xframe ()
  "Emacs Startup prior to setting a Development Theme"

  (typex-inhibit-startup-windows)
  (set-face-attribute 'default nil :height 160 :weight 'bold)
  (setq initial-frame-alist '((width . 75) (height . 21)) )

Re: Frame shifted upwards upon changing font size

[Eli Zaretskii]

> Date: Tue, 13 Sep 2022 04:27:17 +0000
> From: uzibalqa <uzibalqa@proton.me>
> 
> 
> I have a setup that opens emacs at the centre of the screen.
> 
> But then I want to have a specific font size and call
> 
> (set-face-attribute 'default nil :height 160 :weight 'bold)
> 
> This puts the menu-bar outside the screen.  What can I do to keep the window at the
> center of the screen?

I'd try changing default-frame-alist instead of using
set-face-attribute.  Maybe it will work better.

If that doesn't work, change the order between face customizations and
setting up the frame coordinates (assuming you do the latter from the
init file).

In general, what you want is somewhat tricky: Emacs cannot call GUI
functions until it has at least one GUI frame, so at best you might
see the frame momentarily displayed at the wrong place/with wrong font
size before it settles.

Re: Frame shifted upwards upon changing font size

[uzibalqa]

------- Original Message -------
On Tuesday, September 13th, 2022 at 11:29 AM, Eli Zaretskii <eliz@gnu.org> wrote:


> > Date: Tue, 13 Sep 2022 04:27:17 +0000
> > From: uzibalqa uzibalqa@proton.me
> > 
> > I have a setup that opens emacs at the centre of the screen.
> > 
> > But then I want to have a specific font size and call
> > 
> > (set-face-attribute 'default nil :height 160 :weight 'bold)
> > 
> > This puts the menu-bar outside the screen. What can I do to keep the window at the
> > center of the screen?
> 
> 
> I'd try changing default-frame-alist instead of using
> set-face-attribute. Maybe it will work better.
> 
> If that doesn't work, change the order between face customizations and
> setting up the frame coordinates (assuming you do the latter from the
> init file).
> 
> In general, what you want is somewhat tricky: Emacs cannot call GUI
> functions until it has at least one GUI frame, so at best you might
> see the frame momentarily displayed at the wrong place/with wrong font
> size before it settles.

default-frame-alist is a confusing as it already has (width . 75) and 
(height . 21) for the frame.  What is the corresponding entry for
the font height?

Re: Frame shifted upwards upon changing font size

[uzibalqa]

------- Original Message -------
On Tuesday, September 13th, 2022 at 12:10 PM, uzibalqa <uzibalqa@proton.me> wrote:


> ------- Original Message -------
> On Tuesday, September 13th, 2022 at 11:29 AM, Eli Zaretskii eliz@gnu.org wrote:
> 
> 
> 
> > > Date: Tue, 13 Sep 2022 04:27:17 +0000
> > > From: uzibalqa uzibalqa@proton.me
> > > 
> > > I have a setup that opens emacs at the centre of the screen.
> > > 
> > > But then I want to have a specific font size and call
> > > 
> > > (set-face-attribute 'default nil :height 160 :weight 'bold)
> > > 
> > > This puts the menu-bar outside the screen. What can I do to keep the window at the
> > > center of the screen?
> > 
> > I'd try changing default-frame-alist instead of using
> > set-face-attribute. Maybe it will work better.
> > 
> > If that doesn't work, change the order between face customizations and
> > setting up the frame coordinates (assuming you do the latter from the
> > init file).
> > 
> > In general, what you want is somewhat tricky: Emacs cannot call GUI
> > functions until it has at least one GUI frame, so at best you might
> > see the frame momentarily displayed at the wrong place/with wrong font
> > size before it settles.
> 
> 
> default-frame-alist is a confusing as it already has (width . 75) and
> (height . 21) for the frame. What is the corresponding entry for
> the font height?

Have found that default-frame-alist much trickier to use.  If I set
(top . 21) (left . 21) the frame might get placed on a different 
monitor than from the monitor emacs was called.

Have also done a frame-inhibit-implied-resize, this fixes the top-bottom centering
but not the left-right centering.  Looks as if we need a new function that ensures
the frame is centered.

   (setq initial-frame-alist '((width . 75) (height . 21)))

   (setq frame-inhibit-implied-resize t)

   (set-face-attribute 'default nil :height 160 :weight 'bold)

   (setq frame-inhibit-implied-resize nil)



  

Re: Frame shifted upwards upon changing font size

[Gregory Heytings]

>
> Looks as if we need a new function that ensures the frame is centered.
>

(defun frame-center (&optional frame display)
   (interactive)
   (set-frame-position
    frame
    (/ (- (display-pixel-width display) (frame-pixel-width frame)) 2)
    (/ (- (display-pixel-height display) (frame-pixel-height frame)) 2)))

Re: Frame shifted upwards upon changing font size

[uzibalqa]

------- Original Message -------
On Tuesday, September 13th, 2022 at 1:22 PM, Gregory Heytings <gregory@heytings.org> wrote:


> > Looks as if we need a new function that ensures the frame is centered.
> 
> 
> (defun frame-center (&optional frame display)
> (interactive)
> (set-frame-position
> frame
> (/ (- (display-pixel-width display) (frame-pixel-width frame)) 2)
> (/ (- (display-pixel-height display) (frame-pixel-height frame)) 2)))

I have different monitors with different sizes, and the function is transferring the frame to a different monitor.

Re: Frame shifted upwards upon changing font size

[Gregory Heytings]

>> (defun frame-center (&optional frame display)
>>   (interactive)
>>   (set-frame-position
>>    frame
>>    (/ (- (display-pixel-width display) (frame-pixel-width frame)) 2)
>>    (/ (- (display-pixel-height display) (frame-pixel-height frame)) 2)))
>
> I have different monitors with different sizes, and the function is 
> transferring the frame to a different monitor.
>

In that case you need to use display-monitor-attributes-list to get the 
size of the appropriate monitor.

Re: Frame shifted upwards upon changing font size

[uzibalqa]

Sent with Proton Mail secure email.

------- Original Message -------
On Tuesday, September 13th, 2022 at 1:53 PM, Gregory Heytings <gregory@heytings.org> wrote:


> > > (defun frame-center (&optional frame display)
> > > (interactive)
> > > (set-frame-position
> > > frame
> > > (/ (- (display-pixel-width display) (frame-pixel-width frame)) 2)
> > > (/ (- (display-pixel-height display) (frame-pixel-height frame)) 2)))
> > 
> > I have different monitors with different sizes, and the function is
> > transferring the frame to a different monitor.
> 
> 
> In that case you need to use display-monitor-attributes-list to get the
> size of the appropriate monitor.

I get

(((geometry 1080 1152 1366 768) (workarea 1080 1152 1311 768) (mm-size 344 194) (frames #<frame Speedbar 0x415c0c0>) (source . "Gdk")) 

((geometry 0 0 1080 1920) (workarea 0 0 1080 1920) (mm-size 477 268) (frames #<frame *scratch* 0x2ca1040>) (source . "Gdk")))

What would be the way forward?

Re: Frame shifted upwards upon changing font size

[Gregory Heytings]

>
> I get
>
> (((geometry 1080 1152 1366 768) (workarea 1080 1152 1311 768) (mm-size 
> 344 194) (frames #<frame Speedbar 0x415c0c0>) (source . "Gdk")) 
> ((geometry 0 0 1080 1920) (workarea 0 0 1080 1920) (mm-size 477 268) 
> (frames #<frame *scratch* 0x2ca1040>) (source . "Gdk")))
>
> What would be the way forward?
>

I have a single monitor, so I cannot help you more, sorry, apart from 
repeating what the docstring says.

Re: Frame shifted upwards upon changing font size

[uzibalqa]

------- Original Message -------
On Tuesday, September 13th, 2022 at 3:28 PM, Gregory Heytings <gregory@heytings.org> wrote:


> > I get
> > 
> > (((geometry 1080 1152 1366 768) (workarea 1080 1152 1311 768) (mm-size
> > 344 194) (frames #<frame Speedbar 0x415c0c0>) (source . "Gdk"))
> > ((geometry 0 0 1080 1920) (workarea 0 0 1080 1920) (mm-size 477 268)
> > (frames #<frame scratch 0x2ca1040>) (source . "Gdk")))
> > 
> > What would be the way forward?
> 
> 
> I have a single monitor, so I cannot help you more, sorry, apart from
> repeating what the docstring says.

Could emacs get to understand the monitor within which the initial frame
gets displayed and be able to center the frame in that monitor?

Re: Frame shifted upwards upon changing font size

[Robert Pluim]

>>>>> On Tue, 13 Sep 2022 21:07:57 +0000, uzibalqa <uzibalqa@proton.me> said:

    uzibalqa> ------- Original Message -------
    uzibalqa> On Tuesday, September 13th, 2022 at 3:28 PM, Gregory Heytings <gregory@heytings.org> wrote:


    >> > I get
    >> > 
    >> > (((geometry 1080 1152 1366 768) (workarea 1080 1152 1311 768) (mm-size
    >> > 344 194) (frames #<frame Speedbar 0x415c0c0>) (source . "Gdk"))
    >> > ((geometry 0 0 1080 1920) (workarea 0 0 1080 1920) (mm-size 477 268)
    >> > (frames #<frame scratch 0x2ca1040>) (source . "Gdk")))
    >> > 
    >> > What would be the way forward?
    >> 
    >> 
    >> I have a single monitor, so I cannot help you more, sorry, apart from
    >> repeating what the docstring says.

    uzibalqa> Could emacs get to understand the monitor within which the initial frame
    uzibalqa> gets displayed and be able to center the frame in that monitor?

`frame-monitor-attributes' will give you the same information as
`display-monitor-attributes-list', but for the monitor where the
currently selected frame is displayed.


Robert
-- 

Re: Frame shifted upwards upon changing font size

[uzibalqa]

Sent with Proton Mail secure email.

------- Original Message -------
On Wednesday, September 14th, 2022 at 10:10 AM, Robert Pluim <rpluim@gmail.com> wrote:


> > > > > > On Tue, 13 Sep 2022 21:07:57 +0000, uzibalqa uzibalqa@proton.me said:
> 
> 
> uzibalqa> ------- Original Message -------
> 
> uzibalqa> On Tuesday, September 13th, 2022 at 3:28 PM, Gregory Heytings gregory@heytings.org wrote:
> 
> 
> 
> >> > I get
> 
> >> >
> 
> >> > (((geometry 1080 1152 1366 768) (workarea 1080 1152 1311 768) (mm-size
> 
> >> > 344 194) (frames #<frame Speedbar 0x415c0c0>) (source . "Gdk"))
> 
> >> > ((geometry 0 0 1080 1920) (workarea 0 0 1080 1920) (mm-size 477 268)
> 
> >> > (frames #<frame scratch 0x2ca1040>) (source . "Gdk")))
> 
> >> >
> 
> >> > What would be the way forward?
> 
> >>
> 
> >>
> 
> >> I have a single monitor, so I cannot help you more, sorry, apart from
> 
> >> repeating what the docstring says.
> 
> 
> uzibalqa> Could emacs get to understand the monitor within which the initial frame
> 
> uzibalqa> gets displayed and be able to center the frame in that monitor?
> 
> 
> `frame-monitor-attributes' will give you the same information as` display-monitor-attributes-list', but for the monitor where the
> currently selected frame is displayed.
> 
> 
> Robert
> --

frame-monitor-attributes gives me

((geometry 1080 1152 1366 768) (workarea 1080 1152 1311 768) (mm-size 344 194) 

(frames #<frame *scratch* 0x1c111f0> #<frame Speedbar 0x30cefc0>) (source . "Gdk"))

How do I interpret this, and how can I use this information?

Re: Frame shifted upwards upon changing font size

[Robert Pluim]

>>>>> On Wed, 14 Sep 2022 15:09:55 +0000, uzibalqa <uzibalqa@proton.me> said:

    uzibalqa> Could emacs get to understand the monitor within which the initial frame
    >> 
    uzibalqa> gets displayed and be able to center the frame in that monitor?
    >> 
    >> 
    >> `frame-monitor-attributes' will give you the same information as`
    >> display-monitor-attributes-list', but for the monitor where the
    >> currently selected frame is displayed.
    >> 
    >> 
    >> Robert
    >> --

    uzibalqa> frame-monitor-attributes gives me

    uzibalqa> ((geometry 1080 1152 1366 768) (workarea 1080 1152 1311 768) (mm-size 344 194) 

    uzibalqa> (frames #<frame *scratch* 0x1c111f0> #<frame Speedbar 0x30cefc0>) (source . "Gdk"))

    uzibalqa> How do I interpret this, and how can I use this information?

Well, you do

(alist-get 'geometry (frame-monitor-attributes))

which gives you a list, of which the 3rd element is the width of
the monitor, which you can use in Gregoryʼs example function.

Robert
-- 

Re: Frame shifted upwards upon changing font size

[uzibalqa]

------- Original Message -------
On Thursday, September 15th, 2022 at 7:17 AM, Robert Pluim <rpluim@gmail.com> wrote:


> > > > > > On Wed, 14 Sep 2022 15:09:55 +0000, uzibalqa uzibalqa@proton.me said:
> 
> 
> uzibalqa> Could emacs get to understand the monitor within which the initial frame
> 
> >>
> 
> uzibalqa> gets displayed and be able to center the frame in that monitor?
> 
> >>
> 
> >>
> 
> >> `frame-monitor-attributes' will give you the same information as`
> 
> >> display-monitor-attributes-list', but for the monitor where the
> 
> >> currently selected frame is displayed.
> 
> >>
> 
> >>
> 
> >> Robert
> 
> >> --
> 
> 
> uzibalqa> frame-monitor-attributes gives me
> 
> 
> uzibalqa> ((geometry 1080 1152 1366 768) (workarea 1080 1152 1311 768) (mm-size 344 194)
> 
> 
> uzibalqa> (frames #<frame scratch 0x1c111f0> #<frame Speedbar 0x30cefc0>) (source . "Gdk"))
> 
> 
> uzibalqa> How do I interpret this, and how can I use this information?
> 
> 
> Well, you do
> 
> (alist-get 'geometry (frame-monitor-attributes))
> 
> which gives you a list, of which the 3rd element is the width of
> the monitor, which you can use in Gregoryʼs example function.
> 
> Robert
> --

Would (frame-position) and the first two elements in (alist-get 'geometry (frame-monitor-attributes))
give me the same information?

Re: Frame shifted upwards upon changing font size

[Robert Pluim]

>>>>> On Thu, 15 Sep 2022 11:43:03 +0000, uzibalqa <uzibalqa@proton.me> said:

    uzibalqa> Would (frame-position) and the first two elements in (alist-get 'geometry (frame-monitor-attributes))
    uzibalqa> give me the same information?

No. `frame-position' gives you the coordinates of the frame, the other
gets you the info for the monitor itself.

Robert
-- 

Re: Frame shifted upwards upon changing font size

[Po Lu]

Robert Pluim <rpluim@gmail.com> writes:

>>>>>> On Thu, 15 Sep 2022 11:43:03 +0000, uzibalqa <uzibalqa@proton.me> said:
>
>     uzibalqa> Would (frame-position) and the first two elements in (alist-get 'geometry (frame-monitor-attributes))
>     uzibalqa> give me the same information?
>
> No. `frame-position' gives you the coordinates of the frame, the other
> gets you the info for the monitor itself.

If that isn't clear, what Robert is saying is that if frame-position
were to return the coordinates of the monitor, then it would appear to
originate from the top left corner of the monitor.

Re: Frame shifted upwards upon changing font size

[Pascal Quesseveur]

FWIW I have defined those functions to position a frame in case of
multiple monitors.

--8<---------------cut here---------------start------------->8---
(defun qsr/move-frame-pos (frame pos &optional xoffset yoffset)
  "Move FRAME at POS (x . y) and apply XOFFSET to x coordinate and
YOFFSET to y coordinate."
  (let* ((left (car pos))
         (top (cdr pos))
         (width (frame-outer-width frame))
         (height (frame-outer-height frame))
         (monitor-workarea
          (cdr (assq 'workarea (frame-monitor-attributes frame))))
         nleft ntop)
    (if (and monitor-workarea (< left 0))
        (setq nleft (- (+ left width xoffset) (nth 2 monitor-workarea)))
      (setq nleft (+ left xoffset)))
    (if (and monitor-workarea (< top 0))
        (setq ntop (- (+ top height yoffset) (nth 3 monitor-workarea)))
      (setq ntop (+ top yoffset)))
    (set-frame-position frame nleft ntop)
    frame))
(defun qsr/move-current-frame-offset()
  "Move selected frame by offset (32 24)."
  (interactive)
  (qsr/move-frame-pos (selected-frame) (frame-position) 32 24))
--8<---------------cut here---------------end--------------->8---

HTH


-- 
Pascal Quesseveur
pquessev@gmail.com

Re: Frame shifted upwards upon changing font size

[Yuri Khan]

On Thu, 15 Sept 2022 at 22:09, Pascal Quesseveur <pquessev@gmail.com> wrote:
>
> FWIW I have defined those functions to position a frame in case of
> multiple monitors.

So many workarounds for not using a tiling window manager ;)

Re: Frame shifted upwards upon changing font size

[Pascal Quesseveur]

>"YK" == Yuri Khan <yuri.v.khan@gmail.com> writes:

  YK> So many workarounds for not using a tiling window manager ;)

Ahah yes, I'm on Windows.


-- 
Pascal Quesseveur
pquessev@gmail.com

Re: Frame shifted upwards upon changing font size

[Po Lu]

uzibalqa <uzibalqa@proton.me> writes:

> Could emacs get to understand the monitor within which the initial frame
> gets displayed and be able to center the frame in that monitor?

That gets tricky very quickly.  Monitor names are not guaranteed to
remain unique, and X-level identifiers are reused in a monotonically
increasing fashion and cannot be relied on to uniquely identify the
monitor on which where the initial frame was created.

In fact, X has 3 kinds of "monitor": CRTCs, outputs, and monitors.  A
CRT controller defines a rectangle in the screen that has a single mode
line, and can have multiple outputs attached.  An output is a physical
output that displays the contents of its CRTC, and a monitor is a subset
of the screen that represents a non-disjoint collection of pixels that
will be presented to the user through 1 or more outputs, which may be
connected to any number of CRTCs.

Of course, a frame might be displayed in multiple overlapping monitors,
outputs, and CRT controllers, at any given time.

Under such a situation, where do you propose to center the frame?

Re: Frame shifted upwards upon changing font size

[uzibalqa]

------- Original Message -------
On Wednesday, September 14th, 2022 at 10:30 AM, Po Lu <luangruo@yahoo.com> wrote:


> uzibalqa uzibalqa@proton.me writes:
> 
> > Could emacs get to understand the monitor within which the initial frame
> > gets displayed and be able to center the frame in that monitor?
> 
> 
> That gets tricky very quickly. Monitor names are not guaranteed to
> remain unique, and X-level identifiers are reused in a monotonically
> increasing fashion and cannot be relied on to uniquely identify the
> monitor on which where the initial frame was created.
> 
> In fact, X has 3 kinds of "monitor": CRTCs, outputs, and monitors. A
> CRT controller defines a rectangle in the screen that has a single mode
> line, and can have multiple outputs attached. An output is a physical
> output that displays the contents of its CRTC, and a monitor is a subset
> of the screen that represents a non-disjoint collection of pixels that
> will be presented to the user through 1 or more outputs, which may be
> connected to any number of CRTCs.
> 
> Of course, a frame might be displayed in multiple overlapping monitors,
> outputs, and CRT controllers, at any given time.
> 
> Under such a situation, where do you propose to center the frame?

In the middle of the monitor defined by the location of the mouse pointer, perhaps.

Re: Frame shifted upwards upon changing font size

[Christopher Dimech]

> Sent: Wednesday, September 14, 2022 at 10:30 PM
> From: "Po Lu" <luangruo@yahoo.com>
> To: "uzibalqa" <uzibalqa@proton.me>
> Cc: "Gregory Heytings" <gregory@heytings.org>, "Eli Zaretskii" <eliz@gnu.org>, help-gnu-emacs@gnu.org
> Subject: Re: Frame shifted upwards upon changing font size
>
> uzibalqa <uzibalqa@proton.me> writes:
>
> > Could emacs get to understand the monitor within which the initial frame
> > gets displayed and be able to center the frame in that monitor?
>
> That gets tricky very quickly.  Monitor names are not guaranteed to
> remain unique, and X-level identifiers are reused in a monotonically
> increasing fashion and cannot be relied on to uniquely identify the
> monitor on which where the initial frame was created.
>
> In fact, X has 3 kinds of "monitor": CRTCs, outputs, and monitors.  A
> CRT controller defines a rectangle in the screen that has a single mode
> line, and can have multiple outputs attached.  An output is a physical
> output that displays the contents of its CRTC, and a monitor is a subset
> of the screen that represents a non-disjoint collection of pixels that
> will be presented to the user through 1 or more outputs, which may be
> connected to any number of CRTCs.
>
> Of course, a frame might be displayed in multiple overlapping monitors,
> outputs, and CRT controllers, at any given time.
>
> Under such a situation, where do you propose to center the frame?

Currently a user way cycle through the themes to see how it things.
Perhaps there could be something similar for the monitors.  Once
satisfied the user can pick up a monitor attribute to include
include in the init file, if they do not like what emacs decides
for them.

Re: Frame shifted upwards upon changing font size

[Eli Zaretskii]

> Date: Tue, 13 Sep 2022 12:10:22 +0000
> From: uzibalqa <uzibalqa@proton.me>
> Cc: help-gnu-emacs@gnu.org
> 
> > I'd try changing default-frame-alist instead of using
> > set-face-attribute. Maybe it will work better.
> > 
> > If that doesn't work, change the order between face customizations and
> > setting up the frame coordinates (assuming you do the latter from the
> > init file).
> > 
> > In general, what you want is somewhat tricky: Emacs cannot call GUI
> > functions until it has at least one GUI frame, so at best you might
> > see the frame momentarily displayed at the wrong place/with wrong font
> > size before it settles.
> 
> default-frame-alist is a confusing as it already has (width . 75) and 
> (height . 21) for the frame.  What is the corresponding entry for
> the font height?

It's 'font' (and use the fully-qualified XLFD name as the value).

Re: Frame shifted upwards upon changing font size

[uzibalqa]

------- Original Message -------
On Tuesday, September 13th, 2022 at 12:29 PM, Eli Zaretskii <eliz@gnu.org> wrote:


> > Date: Tue, 13 Sep 2022 12:10:22 +0000
> > From: uzibalqa uzibalqa@proton.me
> > Cc: help-gnu-emacs@gnu.org
> > 
> > > I'd try changing default-frame-alist instead of using
> > > set-face-attribute. Maybe it will work better.
> > > 
> > > If that doesn't work, change the order between face customizations and
> > > setting up the frame coordinates (assuming you do the latter from the
> > > init file).
> > > 
> > > In general, what you want is somewhat tricky: Emacs cannot call GUI
> > > functions until it has at least one GUI frame, so at best you might
> > > see the frame momentarily displayed at the wrong place/with wrong font
> > > size before it settles.
> > 
> > default-frame-alist is a confusing as it already has (width . 75) and
> > (height . 21) for the frame. What is the corresponding entry for
> > the font height?
> 
> 
> It's 'font' (and use the fully-qualified XLFD name as the value).

It is even more difficult for user to identify a font name.  

set-face-attribute is great because one just specifies its properties
without worrying about the actual font

(set-face-attribute 'default nil :height 160 :weight 'bold)

Re: Frame shifted upwards upon changing font size

[Eli Zaretskii]

> Date: Tue, 13 Sep 2022 12:40:38 +0000
> From: uzibalqa <uzibalqa@proton.me>
> Cc: help-gnu-emacs@gnu.org
> 
> > > default-frame-alist is a confusing as it already has (width . 75) and
> > > (height . 21) for the frame. What is the corresponding entry for
> > > the font height?
> > 
> > 
> > It's 'font' (and use the fully-qualified XLFD name as the value).
> 
> It is even more difficult for user to identify a font name.  

No, it isn't.  Evaluate this in a running Emacs session:

  (face-font 'default)

> set-face-attribute is great because one just specifies its properties
> without worrying about the actual font
> 
> (set-face-attribute 'default nil :height 160 :weight 'bold)

But you said that it doesn't do the job in this case, and asked for
alternatives, right?

Re: Frame shifted upwards upon changing font size

[uzibalqa]

------- Original Message -------
On Tuesday, September 13th, 2022 at 1:03 PM, Eli Zaretskii <eliz@gnu.org> wrote:


> > Date: Tue, 13 Sep 2022 12:40:38 +0000
> > From: uzibalqa uzibalqa@proton.me
> > Cc: help-gnu-emacs@gnu.org
> > 
> > > > default-frame-alist is a confusing as it already has (width . 75) and
> > > > (height . 21) for the frame. What is the corresponding entry for
> > > > the font height?
> > > 
> > > It's 'font' (and use the fully-qualified XLFD name as the value).
> > 
> > It is even more difficult for user to identify a font name.
> 
> 
> No, it isn't. Evaluate this in a running Emacs session:
> 
> (face-font 'default)
> 
> > set-face-attribute is great because one just specifies its properties
> > without worrying about the actual font
> > 
> > (set-face-attribute 'default nil :height 160 :weight 'bold)
> 
> 
> But you said that it doesn't do the job in this case, and asked for
> alternatives, right?

Neither does default-frame-alist

Seems that a solution would be a function that looks at the monitor size
and centers the frame.