---
title: "toolPickerSelectedToolDidChange(_:)"
framework: pencilkit
role: symbol
role_heading: Instance Method
path: "pencilkit/pktoolpickerobserver/toolpickerselectedtooldidchange(_:)"
---

# toolPickerSelectedToolDidChange(_:)

Tells the observer when a person selects a new tool.

## Declaration

```swift
optional func toolPickerSelectedToolDidChange(_ toolPicker: PKToolPicker)
```

## Parameters

- `toolPicker`: The tool picker whose configuration changed.