# overlay_mode_cb

- **Language:** C
- **Kind:** typealias
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/tmux.h#L1604
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-typedef-overlay_mode_cb/

```c
typedef struct screen *(*overlay_mode_cb)(struct client *, u_int *, u_int *);
```

## Referenced declarations

- [`client`](/en/tmux/3.2a/reference/c-struct-client/) (struct)
- [`screen`](/en/tmux/3.2a/reference/c-struct-screen/) (struct)