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Apple Developer Docs

AppKit / NSOutlineView / NSOutlineView.ColumnDidResizeMessage / oldWidth

oldWidth

Declaration

var oldWidth: CGFloat

Open on developer.apple.com

AppKitInstance Property

macOS 27.0+

Built on 2026-06-12 · Snapshot snapshot-20260612-beta.1 (macOS 27.0) · Commit fba13e1 · by @g-cqd · based on Apple Developer Documentation