---
title: Optional Window List Keys
framework: coregraphics
role: collectionGroup
role_heading: API Collection
path: coregraphics/optional-window-list-keys
---

# Optional Window List Keys

The keys that may optionally be available inside a window’s information dictionary.

## Topics

### Constants

- [kCGWindowWorkspace](coregraphics/kcgwindowworkspace.md)
- [kCGWindowOwnerName](coregraphics/kcgwindowownername.md)
- [kCGWindowName](coregraphics/kcgwindowname.md)
- [kCGWindowIsOnscreen](coregraphics/kcgwindowisonscreen.md)
- [kCGWindowBackingLocationVideoMemory](coregraphics/kcgwindowbackinglocationvideomemory.md)

## See Also

### Constants

- [Window Sharing Constants](coregraphics/window-sharing-constants.md)
- [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)