# client.overlay_check

- **Language:** C
- **Kind:** attribute
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tmux.h#L2207
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-struct-client-overlay_check/

```c
overlay_check_cb overlay_check;
```

## Referenced by

- [`popup_draw_cb`](/en/tmux/latest/reference/c-function-popup-c-popup_draw_cb/) (function)
- [`popup_job_update_cb`](/en/tmux/latest/reference/c-function-popup-c-popup_job_update_cb/) (function)
- [`popup_write`](/en/tmux/latest/reference/c-function-popup_write/) (function)
- [`screen_redraw_draw_borders_cell`](/en/tmux/latest/reference/c-function-screen-redraw-c-screen_redraw_draw_borders_cell/) (function)
- [`server_client_clear_overlay`](/en/tmux/latest/reference/c-function-server_client_clear_overlay/) (function)
- [`server_client_set_overlay`](/en/tmux/latest/reference/c-function-server_client_set_overlay/) (function)
- [`tty_check_overlay_range`](/en/tmux/latest/reference/c-function-tty_check_overlay_range/) (function)
- [`tty_clear_area`](/en/tmux/latest/reference/c-function-tty-c-tty_clear_area/) (function)
- [`tty_clear_line`](/en/tmux/latest/reference/c-function-tty-c-tty_clear_line/) (function)
- [`tty_cmd_alignmenttest`](/en/tmux/latest/reference/c-function-tty_cmd_alignmenttest/) (function)
- [`tty_cmd_deletecharacter`](/en/tmux/latest/reference/c-function-tty_cmd_deletecharacter/) (function)
- [`tty_cmd_deleteline`](/en/tmux/latest/reference/c-function-tty_cmd_deleteline/) (function)
- [`tty_cmd_insertcharacter`](/en/tmux/latest/reference/c-function-tty_cmd_insertcharacter/) (function)
- [`tty_cmd_insertline`](/en/tmux/latest/reference/c-function-tty_cmd_insertline/) (function)
- [`tty_cmd_linefeed`](/en/tmux/latest/reference/c-function-tty_cmd_linefeed/) (function)
- [`tty_cmd_reverseindex`](/en/tmux/latest/reference/c-function-tty_cmd_reverseindex/) (function)
- [`tty_cmd_scrolldown`](/en/tmux/latest/reference/c-function-tty_cmd_scrolldown/) (function)
- [`tty_cmd_scrollup`](/en/tmux/latest/reference/c-function-tty_cmd_scrollup/) (function)
- [`tty_draw_line_clear`](/en/tmux/latest/reference/c-function-tty-draw-c-tty_draw_line_clear/) (function)

## Referenced declarations

- [`overlay_check_cb`](/en/tmux/latest/reference/c-typedef-overlay_check_cb/) (typealias)