---
title: Backing Store Types
framework: coregraphics
role: collectionGroup
role_heading: API Collection
path: coregraphics/backing-store-types
---

# Backing Store Types

Specifies how the window device buffers drawing commands.

## Topics

### Constants

- [CGWindowBackingType.backingStoreRetained](coregraphics/cgwindowbackingtype/backingstoreretained.md)
- [CGWindowBackingType.backingStoreNonretained](coregraphics/cgwindowbackingtype/backingstorenonretained.md)
- [CGWindowBackingType.backingStoreBuffered](coregraphics/cgwindowbackingtype/backingstorebuffered.md)

## See Also

### Constants

- [Window Sharing Constants](coregraphics/window-sharing-constants.md)
- [Window List Option Constants](coregraphics/window-list-option-constants.md)
- [Window Image Types](coregraphics/window-image-types.md)
- [CGWindowID Encoding Type](coregraphics/cgwindowid-encoding-type.md)
- [Null Window](coregraphics/null-window.md)
- [Window Sharing Encoding Type](coregraphics/window-sharing-encoding-type.md)
- [Window Backing Encoding Type](coregraphics/window-backing-encoding-type.md)
- [Required Window List Keys](coregraphics/required-window-list-keys.md)
- [Optional Window List Keys](coregraphics/optional-window-list-keys.md)