# `GSFontViewSidebarController outlineView:doubleClickOnItem:`

*Instance Method*

## Declaration

```swift
func outlineView(_ outlineView: NSOutlineView!, doubleClickOnItem item: Any!)
```

```objc
- (void) outlineView:(NSOutlineView *) outlineView doubleClickOnItem:(id) item;
```

```python
outlineView_doubleClickOnItem_(outlineView: NSOutlineView, item: object)
```