# client.overlay_data

- **Language:** C
- **Kind:** attribute
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/tmux.h#L1757
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-struct-client-overlay_data/

```c
void * overlay_data;
```

## Referenced by

- [`cmd_display_panes_free`](/en/tmux/3.2a/reference/c-function-cmd-display-panes-c-cmd_display_panes_free/) (function)
- [`cmd_display_panes_key`](/en/tmux/3.2a/reference/c-function-cmd-display-panes-c-cmd_display_panes_key/) (function)
- [`menu_draw_cb`](/en/tmux/3.2a/reference/c-function-menu-c-menu_draw_cb/) (function)
- [`menu_free_cb`](/en/tmux/3.2a/reference/c-function-menu-c-menu_free_cb/) (function)
- [`menu_key_cb`](/en/tmux/3.2a/reference/c-function-menu-c-menu_key_cb/) (function)
- [`menu_mode_cb`](/en/tmux/3.2a/reference/c-function-menu-c-menu_mode_cb/) (function)
- [`popup_check_cb`](/en/tmux/3.2a/reference/c-function-popup-c-popup_check_cb/) (function)
- [`popup_draw_cb`](/en/tmux/3.2a/reference/c-function-popup-c-popup_draw_cb/) (function)
- [`popup_free_cb`](/en/tmux/3.2a/reference/c-function-popup-c-popup_free_cb/) (function)
- [`popup_key_cb`](/en/tmux/3.2a/reference/c-function-popup-c-popup_key_cb/) (function)
- [`popup_mode_cb`](/en/tmux/3.2a/reference/c-function-popup-c-popup_mode_cb/) (function)
- [`server_client_clear_overlay`](/en/tmux/3.2a/reference/c-function-server_client_clear_overlay/) (function)
- [`server_client_set_overlay`](/en/tmux/3.2a/reference/c-function-server_client_set_overlay/) (function)