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Originally Posted by stax76
I think traditional QT isn't High DPI independent like QT Quick or WPF.
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It seems high dpi scaling is also supports for legacy apps
Quote:
Qt 5.6 supports cross-platform high-DPI scaling for legacy applications, similar to the scaling done natively in macOS. This allows applications written for low DPI screens to run unchanged on high DPI devices. This feature is opt-in, and can be enabled using the following environment variables:
QT_AUTO_SCREEN_SCALE_FACTOR
QT_SCALE_FACTOR
QT_SCREEN_SCALE_FACTORS
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Source
https://doc.qt.io/qt-5/highdpi.html
Quote:
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By default, Qt applications are set to Per-Monitor DPI Aware on Windows 8.1 or System-DPI Aware on older Windows versions.
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Maybe this is why it is not scaling on win7?