# LibTmux.Window.EntityKey

- **Module:** LibTmux.Window
- **Package:** LibTmux
- **Language:** .NET
- **Kind:** property
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/320dc64f4b8b7815842471327a5e6b84a1499bf8/src/LibTmux/Window.Relations.cs#L72
- **Page:** https://libtmux.org/en/dotnet/latest/reference/libtmux-window-entitykey/

Gets the session and window this handle names together.

tmux links one window into several sessions at different indexes, so a
window identifier alone does not name a place in the hierarchy.