## alt_key property


true if the Alt (alternative) (or "Option") key modifier was active. The un-initialized value of this attribute MUST be false.
### Definition:
```python
@property
def alt_key(self):
    ...
@alt_key.setter
def alt_key(self, value):
    ...
```

### See Also
* module [`aspose.html.dom.events`](../../)
* class [`KeyboardEvent`](/html/python-net/aspose.html.dom.events/keyboardevent)