---
title: "mousescroll"
description: "Emits a Windows wheel delta."
---

```lua
mousescroll(delta: number): ()
```

---

## Aliases

None.

---

## Arguments

<ParamField body="delta" type="number" required>
  The raw Windows wheel delta; 120 usually represents one notch.
</ParamField>

---

## Returns

This function returns no values.

Raw delta units, not a number of notches; 120 is the usual single-notch convention.

---

## Example

```lua
if isrbxactive() then mousescroll(120) end
```