# `NSNotification.Name.GSDocumentActivateNotification`

*Type Property*

Posted when a document window becomes active.

## Declaration

```swift
static let GSDocumentActivate: NSNotification.Name
```

```objc
extern NSNotificationName const GSDocumentActivateNotification;
```

```python
GSDocumentActivateNotification: NSNotificationName
```

## Discussion

The notification object is the window controller.