XnView Software

Oh and, in case this helps: I'm using Windows 10's "150% scaling" (no idea what DPI that is) and I have "Fix scaling for apps" enabled in the advanced scaling settings.

I'm certain that XnView is rendering at double scale with the HiDpi setting checked in XnView because I can create a 1920x1080 ...

For me it's the other way around. The lasso-zooming works correctly when the box is checked .

However, this solution is unacceptable for me because then "View->Zoom->100%" doesn't render pixels at the correct 1:1 scale anymore. Instead, it renders at double scale. And unfortunately, it's ...

Any large image does this. If you want a large image, this is the one I used

https://i.imgur.com/xIjMiDU.jpg

I'm having this same problem. It seems to be worst on large images that are zoomed out.

I'm on Windows 10, on a 4K hidpi display. I recorded video of the bug occurring:

https://youtu.be/TuA4w9LUD8o

I've also attached my xnview config ini.