# MOUSE_MASK_WHEEL

- **Language:** C
- **Kind:** constant
- **Source:** https://github.com/tmux/tmux/blob/3b929f332aafa7f1080eacc31feb11ffbb1d1841/tmux.h#L1224
- **Page:** https://libtmux.org/en/tmux/3.2a/reference/c-define-tmux-h-mouse_mask_wheel/

```c
#define MOUSE_MASK_WHEEL 64
```

## Referenced by

- [`MOUSE_WHEEL`](/en/tmux/3.2a/reference/c-define-tmux-h-mouse_wheel/) (constant)