---
title: euid
framework: endpointsecurity
role: symbol
role_heading: Instance Property
path: endpointsecurity/es_event_setreuid_t/euid
---

# euid

The effective user ID.

## Declaration

```swift
var euid: uid_t
```

## See Also

### Inspecting Event Properties

- [ruid](endpointsecurity/es_event_setreuid_t/ruid.md)
- [reserved](endpointsecurity/es_event_setreuid_t/reserved.md)