Alternatively, what's a good way to intercept Ctrl+Z app-wide? If we have to work with the

KeyEvent

API (

Modifier.onKeyEvent

/

onPreviewKeyEvent

), is there a nice high level way to detect an "Undo" as opposed to Ctrl+Z / Meta+Z? And finally, what's a good cross-platform way of detecting Ctrl/Cmd+Key? I'm currently checking OS via

System.getProperty

and looking for a matching modifier key.

It’s not just the modifier key. Different platforms do have different key combinations for the “same” action.