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  • I doubt that there is or will ever be such a command like xprop. One major goal of Wayland is to restrict access to windows of other processes. Commented Feb 18, 2018 at 8:38
  • @mviereck Surely the superuser could see window information, even in Wayland? Commented Feb 20, 2018 at 13:12
  • @bariumbitmap: Only if the compositor provides these informations outside of its own memory, for example in a file or through an API. I am not aware of such a specification (but it may exist, though). Of course, you could fork a compositor like weston and implement that yourself, if you don't need a general solution for all compositors. Commented Feb 20, 2018 at 15:52
  • Why not just xprop? It shows an awful lot of detail over a window via XWayland, including _NET_WM_PID(CARDINAL), which is the originator process PID. Commented Apr 5, 2019 at 15:18
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    @istepaniuk because xprop doesn't have access to Wayland windows, but only to those running on X server. Commented Jan 10, 2023 at 15:54