# tty_region

- **Language:** C
- **Kind:** function
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L2340
- **Page:** https://libtmux.org/en/tmux/3.7c/reference/c-function-tty-c-tty_region/

```c
static void tty_region(struct tty *, u_int, u_int)
```

## Parameters

- `tty` (`struct tty *`)
- `rupper` (`u_int`)
- `rlower` (`u_int`)

## Called by

- [`tty_clear_area`](/en/tmux/3.7c/reference/c-function-tty-c-tty_clear_area/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L1362)
- [`tty_region_off`](/en/tmux/3.7c/reference/c-function-tty_region_off/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L2326)
- [`tty_region_pane`](/en/tmux/3.7c/reference/c-function-tty-c-tty_region_pane/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L2334)

## Calls

- [`tty_cursor`](/en/tmux/3.7c/reference/c-function-tty_cursor/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L2358)
- [`tty_putcode_ii`](/en/tmux/3.7c/reference/c-function-tty_putcode_ii/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L2363)
- [`tty_term_has`](/en/tmux/3.7c/reference/c-function-tty_term_has/) (function) [Call site](https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tty.c#L2344)

## Referenced declarations

- [`tty.cx`](/en/tmux/3.7c/reference/c-struct-tty-cx/) (attribute)
- [`tty.cy`](/en/tmux/3.7c/reference/c-struct-tty-cy/) (attribute)
- [`tty.rlower`](/en/tmux/3.7c/reference/c-struct-tty-rlower/) (attribute)
- [`tty.rupper`](/en/tmux/3.7c/reference/c-struct-tty-rupper/) (attribute)
- [`tty.sx`](/en/tmux/3.7c/reference/c-struct-tty-sx/) (attribute)
- [`tty.term`](/en/tmux/3.7c/reference/c-struct-tty-term/) (attribute)
- [`tty`](/en/tmux/3.7c/reference/c-struct-tty/) (struct)
- [`TTYC_CSR`](/en/tmux/3.7c/reference/c-enum-tty_code_code-ttyc_csr/) (constant)