---
title: UIKeyboardHIDUsage.keyboard4
framework: uikit
role: symbol
role_heading: Case
path: uikit/uikeyboardhidusage/keyboard4
---

# UIKeyboardHIDUsage.keyboard4

The raw usage code 33 (decimal)/21 (hexadecimal).

## Declaration

```swift
case keyboard4
```

## See Also

### Numerical keys

- [UIKeyboardHIDUsage.keyboard0](uikit/uikeyboardhidusage/keyboard0.md)
- [UIKeyboardHIDUsage.keyboard1](uikit/uikeyboardhidusage/keyboard1.md)
- [UIKeyboardHIDUsage.keyboard2](uikit/uikeyboardhidusage/keyboard2.md)
- [UIKeyboardHIDUsage.keyboard3](uikit/uikeyboardhidusage/keyboard3.md)
- [UIKeyboardHIDUsage.keyboard5](uikit/uikeyboardhidusage/keyboard5.md)
- [UIKeyboardHIDUsage.keyboard6](uikit/uikeyboardhidusage/keyboard6.md)
- [UIKeyboardHIDUsage.keyboard7](uikit/uikeyboardhidusage/keyboard7.md)
- [UIKeyboardHIDUsage.keyboard8](uikit/uikeyboardhidusage/keyboard8.md)
- [UIKeyboardHIDUsage.keyboard9](uikit/uikeyboardhidusage/keyboard9.md)