<!--
{
  "availability" : [
    "DriverKit: -",
    "macOS: -"
  ],
  "documentType" : "symbol",
  "framework" : "HIDDriverKit",
  "identifier" : "/documentation/HIDDriverKit/IOHIDDigitizerStylusData/tipChanged",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "HIDDriverKit"
    ],
    "preciseIdentifier" : "c:@S@IOHIDDigitizerStylusData@FI@tipChanged"
  },
  "title" : "tipChanged"
}
-->

# tipChanged

A single-bit Boolean that indicates whether the tip contact status changed since the last event was dispatched.

```
uint32_t tipChanged;
```

## Discussion

For example, this property is `1` if the value in the [`tip`](/documentation/HIDDriverKit/IOHIDDigitizerStylusData/tip) field changed from `0` to `1` since the last event.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)