mliberty1/pyside2_high_dpi

Minimal PySide2/Qt example for high dpi experimentation.

PySide2 High DPI example

I have been trying and failing to get high-dpi icons to work correctly in Qt + PySide2. The goal is to create and then fix this minimal example.

Solution: use SVG images and stylesheets.

Baseline

Win10x64 before without any high DPI setting:

Win10x64 before with high DPI setting:

References

Here are some QT references:

• https://doc.qt.io/qt-5/highdpi.html
• https://doc.qt.io/qt-5/qpixmap.html#setDevicePixelRatio
• https://doc.qt.io/qt-5/qpainter.html#drawing-high-resolution-versions-of-pixmaps-and-images
• https://doc.qt.io/qt-5/qimagereader.html#high-resolution-versions-of-images
• https://doc.qt.io/qt-5/qicon.html#high-dpi-icons

And some interesting tutorials and forum posts:

• https://vicrucann.github.io/tutorials/osg-qt-high-dpi/
• https://lists.qt-project.org/pipermail/interest/2015-September/019009.html
• https://openapplibrary.org/dev-tutorials/qt-icon-themes

Additional Windows guides:

• https://docs.microsoft.com/en-us/previous-versions/windows/desktop/ms701681(v=vs.85)?redirectedfrom=MSDN