# TTY_SYNCING

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/tmux.h#L1354
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-define-tmux-h-tty_syncing/

```c
#define TTY_SYNCING 0x400
```

## Referenced by

- [`tty_sync_end`](/en/tmux/3.2a/reference/c-function-tty_sync_end/) (function)
- [`tty_sync_start`](/en/tmux/3.2a/reference/c-function-tty_sync_start/) (function)