Comment by fluoridation
Comment by fluoridation 19 hours ago
This is Windows, but it might shed some light on the situation. I have a Qt application that I made, and occasionally when I switch from one window to another, the cursor doesn't switch from resize to normal, or vice versa, until I move the mouse. The precise effect is consistent, but difficult to describe, hence why the "sometimes". I think it happens because I'm not handling the window switch event as one that may require re-evaluating the cursor shape.
Absolutely, I've always suspected that it's something to do with that. There's also something about the underlying tech that makes the macOS pointer behave 'more independently' of the rest of the UI, like it's running in a separate thread? I've definitely noticed scenarios in the past that would 'block' the pointer from updating (even its position) on Windows, that wouldn't on Mac.
So maybe the pointer is not as tightly-coupled to the underlying UI components, so some scenarios can cause them to briefly lose track of each other?