---
title: KeyboardEventCallback
framework: kernel
role: symbol
role_heading: Type Alias
path: kernel/keyboardeventcallback
---

# KeyboardEventCallback

## Declaration

```occ
typedef void (*KeyboardEventCallback)(OSObject *target, unsigned int eventType, unsigned int flags, unsigned int key, unsigned int charCode, unsigned int charSet, unsigned int origCharCode, unsigned int origCharSet, unsigned int keyboardType, bool repeat, AbsoluteTime ts, OSObject *sender, void *refcon);
```