# libtmux::Window::session_name

- **Module:** libtmux::Window
- **Package:** libtmux-cxx
- **Language:** C++
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-cxx/blob/393d4b0ad666f18a6581f1eb281741a75a7503f0/include/libtmux/entities.hpp#L542
- **Page:** https://libtmux.org/en/cxx/latest/reference/libtmux-window-session_name-1x3f/

```
libtmux::Window::session_name() -> std::string_view
```

The owning psmux route carried by Windows live snapshots.

Empty on POSIX and in recordings made from the backward-compatible `kFields` schema.