## Syntax
```
def mouseWheel([event]):
# do stuff
# work with event with property delta, like event.delta
```
Full Code Example
```python
```
## Description
This function is called any time a **vertical mouse wheel** event is detected, either triggered by rolling an actual mouse wheel or by a touchpad.
{% hint style="info" %}
Find these documents helpful? Let the people who made them help your child learn to code at [**Strivemath**](https://www.strivemath.com/)**!**
We'd love to hear your Feedback/Comments [here](https://docs.google.com/forms/d/e/1FAIpQLSeqorBAGTya-YBRI-VFjJxtgQtCz3ucGDI96K96sNyuaGuvdw/viewform?usp=sf_link).
{% endhint %}
