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# Optional Window List Keys

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

## Topics

### Constants

[`let kCGWindowWorkspace: CFString`](/documentation/CoreGraphics/kCGWindowWorkspace)

[`let kCGWindowOwnerName: CFString`](/documentation/CoreGraphics/kCGWindowOwnerName)

[`let kCGWindowName: CFString`](/documentation/CoreGraphics/kCGWindowName)

[`let kCGWindowIsOnscreen: CFString`](/documentation/CoreGraphics/kCGWindowIsOnscreen)

[`let kCGWindowBackingLocationVideoMemory: CFString`](/documentation/CoreGraphics/kCGWindowBackingLocationVideoMemory)


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