---
title: NSWindow.BackingStoreType.buffered
framework: appkit
role: symbol
role_heading: Case
path: appkit/nswindow/backingstoretype/buffered
---

# NSWindow.BackingStoreType.buffered

The window renders all drawing into a display buffer and then flushes it to the screen.

## Declaration

```swift
case buffered
```

## Discussion

Discussion You should use this mode. It supports hardware acceleration, Quartz drawing, and takes advantage of the GPU when possible. It also supports alpha channel drawing, opacity controls, using the compositor.

## See Also

### Constants

- [NSWindow.BackingStoreType.retained](appkit/nswindow/backingstoretype/retained.md)
- [NSWindow.BackingStoreType.nonretained](appkit/nswindow/backingstoretype/nonretained.md)