# `GSWindowController.selectedTool`

*Instance Property*

The index of the currently active tool

## Declaration

```swift
weak var selectedTool: (any NSResponder & GlyphsTool)? { get set }
```

```objc
@property (nonatomic, weak) NSResponder<GlyphsTool> * selectedTool;
```

```python
selectedTool() -> NSResponder<GlyphsTool>
setSelectedTool_(selectedTool: NSResponder<GlyphsTool>)
```