# LibTmux.Session.ActiveWindow

- **Module:** LibTmux
- **Package:** LibTmux
- **Language:** C#
- **Kind:** property
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/cf34b255c896d19a97e7d7fabea58609c916012d/src/LibTmux/Session.Relations.cs#L20
- **Page:** https://libtmux.org/en/csharp/latest/reference/libtmux-session-activewindow/

Gets the captured active window, or an uncaptured relation.

Reading this is local. A session reached through an inactive window
carries that window's row, so its active window was not captured.