# LibTmux.TmuxPaneGoneEvent

- **Module:** LibTmux
- **Package:** LibTmux
- **Language:** .NET
- **Kind:** struct
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/320dc64f4b8b7815842471327a5e6b84a1499bf8/src/LibTmux/ControlMode/PaneObservation.cs#L15
- **Page:** https://libtmux.org/en/dotnet/latest/reference/libtmux-tmuxpanegoneevent/

The pane a stream was watching left its window's arrangement.

tmux's control protocol has no notification naming a killed pane
specifically, only a general <c>%layout-change</c> or window-close for the
window it was in. This is synthesized by <see cref="PaneObservation" />
once it confirms, by asking tmux directly, that the watched pane no longer
resolves - after any output already buffered for it has been delivered.