Comment by throwaway2037

I did some Googling to discover if Qt supports HDR on MacOS. It looks like support is currently limited, but it is an area of active development.

Jan 2024: https://www.qt.io/blog/window-embedding-in-qt-quick

Sep 2025: https://forum.qt.io/topic/163224/hdr-example-code

Latest docs (search for "HDR"): https://doc.qt.io/qt-6/qvideoframeformat.html

This Reddit post: https://www.reddit.com/r/macapps/comments/1ibala5/ive_discov...

... shares info about a Swift-based screen recorder that claims to support HDR. (I have no ability to verify that.) That might work for you.