QWebEngineView high DPI awareness

  • Hi all, I'm developing an application that uses QWebEngineView for the UI. I've been iterating on the UI part of it using Chrome to take advantage of hot reloading, but I just noticed after testing it out with the QWebEngineView that the scaling is different. I'm on Windows 10 and have my scale setting set to 125%, and Chrome appears to respect that, but in the Qt app everything is much smaller. I'm calling QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling); first thing in main, but it appears to have no affect since when I disable it, everything looks the same. If I set the QT_SCALE_FACTOR to 1.25 then things appear as expected, but that would require me to calculate the user's scaling settings manually, which I guess wouldn't be a huge deal but I would like to avoid it if possible. I admittedly only have a basic understanding of high DPI settings, so am I wrong in thinking that what I see in QtWebEngineView should be the same as what I see in Chrome? Or is there a setting that I'm missing or another explanation for this behavior? Thanks!!

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