Bypass Windows 10 custom scaling?

[Comfy.n]

I've been using the environment variable QT_ENABLE_HIGHDPI_SCALING=0, which provides me a nice "maximization" of screen real estate.

My laptop display runs a 1920 x 1080 resolution, with 125% custom scaling (Windows 10).

Now I wonder, is it possible to run Calibre on a actual 1920 x 1080 resolution, bypassing the system custom scaling, so that I can get even more screen real estate?

I did some searches and found the links below, which seem to be helpful on that matter, but in doing many trial/error experimentations, with variables like QT_USE_PHYSICAL_DPI, QT_SCALE_FACTOR, QT_SCALE_FACTOR_ROUNDING_POLICY... I had no success:

https://doc.qt.io/qt-6/highdpi.html
https://superuser.com/questions/1017...nt-resolutions

Also, I set the Calibre executable "high dpi scaling override" to be performed by the application.

I probably should add, hopefully to make my question more clear, that I personally prefer general UI items/toolbars/buttons/ as small as possible, which is not the average user general preference.

[Comfy.n]

BTW, in Mozilla browsers there's a setting that serves the same purpose:

layout.css.devPixelsPerPx

Something that works like that would be nice...

[BetterRed]

Originally Posted by Comfy.n

. . .
I probably should add, hopefully to make my question more clear, that I personally prefer general UI items/toolbars/buttons/ as small as possible .

I also avoid things like obscure environment variables, browser profile tweaks, and registry hacks.

I get rid of as many UI items as possible - no frills gooey.



That's one of the things like most about calibre, I can avoid the clutter of button bars and such like whilst retaining access to functionality via use of keyboard shortcuts and keyboard accessible context menus.

BR

[Comfy.n]

Originally Posted by BetterRed

I also avoid things like obscure environment variables, browser profile tweaks, and registry hacks.

I can't live without those, more so after Windows 7 EOL'ed...
I use many tweaks from Winaero, like the one that enables a custom title bar height, for instance.

I get rid of as many UI items as possible - no frills gooey.

In my case, i usually want all items of frequent use easily accessible, with just one click if possible

Attachment 195688

I'd love to reduce eye strain by using dark themes, but they don't display well in TN panels

That's one of the things like most about calibre, I can avoid the clutter of button bars and such like whilst retaining access to functionality via use of keyboard shortcuts and keyboard accessible context menus.

As i'm more of a mouse user, clicking buttons feels comfier most of the time :P

--------------------

I just found this nifty program and did some tests:
https://github.com/lihas/windows-DPI-scaling-sample

The attached screenshots show my Calibre at 100% and 125% scaling.

I'd prefer to view Calibre always on 100%, and I suspect that on QT based software it might be easier to have them displayed without any scaling (1920 x 1080 @ 100%, in my case). There are plenty of combinations of environment variables and windows settings that might achieve this purpose, but I just can't figure out how to do it...

So I'd be happier with:

1) Calibre and any other QT based programs: 1920 x 1080 @ 100%
2) Other programs and main Windows UI: 1920 x 1080 @ 125%

Ideally, I think users should have the ability to set custom resolutions for each program, however that seems unachievable.