Display Scale and PWP7/8

[tomczak]

It's probably not the right place to ask, but still interesting. My native screen resolution is 1920x1080 and is set as such in Windows 10. But the monitor is a tiny 11" and to be able to read anything I need to scale the text up in Windows. That seems to scale images in PWP7 as well (I discovered that they were not displayed as pixel-per-pixel while using gamma test images), but not in PWP8. How does that work?

[tomczak]

I think I fixed the issue by disabling the display scaling for PWP7 in its Properties/Compatibility tab. The icons are tiny, but the images display correctly now.

[jsachs]

When you let Window scale an application, it magnifies everything, including fonts, icons and images by resampling the entire screen. For large high-dpi screens, this makes the fonts and icons legible but blurs images. PWP avoids this by registering as DPI-aware (new mostly in Windows 10) so it handles its own scaling. This lets it draw fonts and icons large while preserving the full screen resolution for images. PWP has a separate setting (File/Font Size) to let you make text and icons larger or smaller. Non-DPI-aware applications let Windows handle the scaling via the Display control panel. PWP7 in not DPI-aware.