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When checked in the compatibility properties for a shortcut, I assume this means that "Display Scaling" is disabled when there are "High DPI Settings." Fine, but my questions are:
- What exactly is Display Scaling? Perhaps it refers to the setting in the display Custom Sizing Options dialog:
If so, then is it true that a percentage of anything other than 100% is "Display Scaling" (what is to be disabled) and a percentage of 100% mean no display scaling?
- When do I have "High DPI Settings"? My monitor is 2560x1440. Is there somewhere where I choose whether it's set to "High DPI" as opposed to something else (no idea what the opposite of that is)? Is it inherently High DPI? Non-High DPI? I have a Dell UltraSharp U2515H, and, as this is only a 25" screen, perhaps it is always High DPI?
What I actually want is to leave Windows scaled at 150%, so the various UI elements are readable, and make Lightroom and Photoshop work at 2560x1440. However, when I check the "Disable Display Scaling on High DPI Settings" checkbox for those applications, their UI is unchanged.
Ditto for Chrome. Whether I have that checkbox checked or not, the values in JavaScript for screen.width and screen.height are 1706x960. When I set Windows for 100% scaling, the screen dimensions within Chrome are reported as 2560x1440, which is what I would expect.
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OK... pretty good info. Thanks, Florian. Sounds like the shortcut property setting may be advisory? Anyway, I've run some more experiments with Lightroom and Photoshop, and it seems that they handle "high DPI" well (didn't always), and still work with actual screen pixels, even when Windows is set to scale. This is all I wanted, so that 1:1 is really 1:1 in those applications. So, all is well. – Marc Rochkind – 2016-07-13T22:17:02.447