# KEYC_UNKNOWN

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/tmux.h#L114
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-define-tmux-h-keyc_unknown/

```c
#define KEYC_UNKNOWN 0x000fe000000000ULL
```

## Referenced by

- [`cmd_bind_key_exec`](/en/tmux/3.2a/reference/c-function-cmd-bind-key-c-cmd_bind_key_exec/) (function)
- [`cmd_list_keys_exec`](/en/tmux/3.2a/reference/c-function-cmd-list-keys-c-cmd_list_keys_exec/) (function)
- [`cmd_list_keys_get_width`](/en/tmux/3.2a/reference/c-function-cmd-list-keys-c-cmd_list_keys_get_width/) (function)
- [`cmd_list_keys_print_notes`](/en/tmux/3.2a/reference/c-function-cmd-list-keys-c-cmd_list_keys_print_notes/) (function)
- [`cmd_send_keys_inject_string`](/en/tmux/3.2a/reference/c-function-cmd-send-keys-c-cmd_send_keys_inject_string/) (function)
- [`cmd_unbind_key_exec`](/en/tmux/3.2a/reference/c-function-cmd-unbind-key-c-cmd_unbind_key_exec/) (function)
- [`key_string_lookup_key`](/en/tmux/3.2a/reference/c-function-key_string_lookup_key/) (function)
- [`key_string_lookup_string`](/en/tmux/3.2a/reference/c-function-key_string_lookup_string/) (function)
- [`key_string_search_table`](/en/tmux/3.2a/reference/c-function-key-string-c-key_string_search_table/) (function)
- [`menu_add_item`](/en/tmux/3.2a/reference/c-function-menu_add_item/) (function)
- [`mode_tree_build_lines`](/en/tmux/3.2a/reference/c-function-mode-tree-c-mode_tree_build_lines/) (function)
- [`options_from_string`](/en/tmux/3.2a/reference/c-function-options_from_string/) (function)
- [`server_client_check_mouse`](/en/tmux/3.2a/reference/c-function-server-client-c-server_client_check_mouse/) (function)
- [`server_client_key_callback`](/en/tmux/3.2a/reference/c-function-server-client-c-server_client_key_callback/) (function)
- [`tty_keys_add1`](/en/tmux/3.2a/reference/c-function-tty-keys-c-tty_keys_add1/) (function)
- [`tty_keys_find1`](/en/tmux/3.2a/reference/c-function-tty-keys-c-tty_keys_find1/) (function)
- [`tty_keys_next`](/en/tmux/3.2a/reference/c-function-tty_keys_next/) (function)
- [`tty_keys_next1`](/en/tmux/3.2a/reference/c-function-tty-keys-c-tty_keys_next1/) (function)