Fix for Windows, follow these steps: Create a windows regedit new DWORD Press Windows Button + R, type “regedit”, and then click OK. Navigate to the following registry subkey: HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows > CurrentVersion > SideBySide Right-click, select NEW > DWORD (32 bit) Value Type PreferExternalManifest, and then press ENTER. Right-click … Read more
These are bitmap images, they naturally scale badly. You are just lucky that your own images do not look that bad when scaled. You have to prepare your own set of images for common scaling factors. Common scaling factors used nowadays are 100%, 125%, 150% and 200%. So you should have four sizes for the … Read more
About the problem reported in this Question: An application, which is DPI-unaware by design, relying on Windows virtualization to scale its UI content, suddenly (although after some modifications, leading to a minor release update) – and apparently without an observable reason – becomes DPI-Aware (System Aware). The application also relies on an interpretation of the … Read more
EDIT: As of .NET 4.7, windows forms has improved support for High DPI. Read more about it on docs.microsoft.com It only works for Win 10 Creators Update and higher though, so it might not be feasible to use this yet depending on your user base. Difficult, but not impossible. Your best option is to move … Read more
Once you go past 100% (or 125% with the “XP-style DPI scaling” checkbox ticked), Windows by default takes over the scaling of your UI. It does so by having your app render its output to a bitmap and drawing that bitmap to the screen. The rescaling of that bitmap makes the text inevitably look fuzzy. … Read more