![]() Vibration and environment impact (hot day - cold night temperature change recurrence) can cause them to have glitches and hardware failures. These usually can have weirdo hardware in them, exotic GPUs and motherboards. The thing what you develop is for some kind of commercial touch screen device seemingly: like electronic information booth at plaza/mall, or some control terminal in a factory, or something. For performance purposes the system tries to be smart and use hardware acceleration (all modern GPUs provide such). That maybe the reason you don't have problems with edges. ![]() Edges are often aliased with another algorithm, that is hardware accelerated too: edge anti-aliasing. There's a lot going on behind anti-aliasing, like sub-pixel anti-aliasing. It cannot be turned off WPF Anti aliasing workaround. WPF should try to use ClearType and anti-aliasing by default to give a smoothed look out of the box.
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June 2023
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