I have a DocumentWindow with a native title bar that manages a FileBasedDocument.
Apple’s Human Interface Guidelines (link) say that, if AutoSave isn’t available (it isn’t in my app), then a window with unsaved changes should show a “bullet” symbol in its native title bar. Like this:
It’s simple enough to make the window listen to document changes.
However, I cannot figure out how to make JUCE show the actual bullet, and I cannot find anything on Google or this forum on that topic.