# KEYC_MASK_MODIFIERS

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/e476c1230b958df0cb12977517d24b3dc931375b/tmux.h#L148
- **Page:** https://libtmux.org/en/tmux/latest/reference/c-define-tmux-h-keyc_mask_modifiers/

```c
#define KEYC_MASK_MODIFIERS 0x00ff0000000000ULL
```

## Referenced by

- [`cmd_display_panes_key`](/en/tmux/latest/reference/c-function-cmd-display-panes-c-cmd_display_panes_key/) (function)
- [`cmd_list_keys_exec`](/en/tmux/latest/reference/c-function-cmd-list-keys-c-cmd_list_keys_exec/) (function)
- [`cmd_list_keys_filter_key_list`](/en/tmux/latest/reference/c-function-cmd-list-keys-c-cmd_list_keys_filter_key_list/) (function)
- [`input_key`](/en/tmux/latest/reference/c-function-input_key/) (function)
- [`input_key_extended`](/en/tmux/latest/reference/c-function-input-keys-c-input_key_extended/) (function)
- [`server_client_key_callback`](/en/tmux/latest/reference/c-function-server-client-c-server_client_key_callback/) (function)
- [`sort_key_binding_cmp`](/en/tmux/latest/reference/c-function-sort-c-sort_key_binding_cmp/) (function)
- [`status_prompt_keypad_key`](/en/tmux/latest/reference/c-function-status-c-status_prompt_keypad_key/) (function)
- [`tty_keys_extended_key`](/en/tmux/latest/reference/c-function-tty-keys-c-tty_keys_extended_key/) (function)