---
title: "beginDraggingSession(items:event:source:)"
framework: appkit
role: symbol
role_heading: Instance Method
path: "appkit/nswindow/begindraggingsession(items:event:source:)"
---

# beginDraggingSession(items:event:source:)

## Declaration

```swift
func beginDraggingSession(items: [NSDraggingItem], event: NSEvent, source: any NSDraggingSource) -> NSDraggingSession
```