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Since I have to work in a winforms project again, I do have problems with the VS designer now. I have a Thinkpad P1 with FullHD (16" WUXGA = 1920 x 1200) and a 125 % scaling because the 100 % scaling is too small for my old eyes on the laptop screen. The scaling now leeds to unpredictable VS (winforms) designer views, usually I cannot trust what I see. So, no WYSIWYG at all. ;) Does it help to buy a laptop with higher resolution (WQXGA = 2560 x 1600) or does that just worsen the problem? After so many years, I start to like the WPF designer! :)

IngoB
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  • You issue is probably related to DpiAwareness (a WPF app is already DpiAware). You need a recent version of .NET (4.7.2+ for .NET FX). If you're targeting .NET, better target .NET 7+ and, in any case, select the `PerMonitorV2` DpiAware mode (the default in .NET, unfortunately, is `SystemAware`) -- Add the .NET version you're planning to target (if you can choose, then pick .NET 7) – Jimi Aug 02 '23 at 20:54

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For what you said, setting a scaling factor of 125% has an effect on the Winforms designer, mainly because Windows Forms Designer does not scale, WPF does this because it is vector-based, but WinForms is pixel-based.

For this issue, usually click the "Restart Visual Studio with 100% scaling" option or set the Visual Studio software to ignore Windows' DPI display scaling.

But this again seems to bypass the problem you mentioned in your post: "100% zoom is too small for old eyes on a laptop screen", so use a high resolution laptop or use a high resolution The external display is a very good solution

wenbingeng-MSFT
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