---
title: Window Sharing Constants
framework: coregraphics
role: collectionGroup
role_heading: API Collection
path: coregraphics/window-sharing-constants
---

# Window Sharing Constants

Specifies whether and how windows are shared between applications.

## Topics

### Constants

- [CGWindowSharingType.none](coregraphics/cgwindowsharingtype/none.md)
- [CGWindowSharingType.readOnly](coregraphics/cgwindowsharingtype/readonly.md)
- [CGWindowSharingType.readWrite](coregraphics/cgwindowsharingtype/readwrite.md)

## See Also

### Constants

- [Backing Store Types](coregraphics/backing-store-types.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)