CocoaAppKit
CocoaAppKit is an open-source GUI framework intended to provide a Cocoa-inspired API for building desktop applications. It draws on concepts from Apple's Cocoa AppKit while aiming to be portable across platforms. The project states that it is not affiliated with Apple.
Core features include a hierarchically organized object model with a responder chain, target-action for user events,
Architecture comprises a core UI layer, a rendering backend, and platform adapters. The core library defines
Language bindings typically provide C++ interfaces, with optional wrappers for other languages such as Swift or
See also: AppKit, Cocoa, GUI framework, cross-platform UI toolkit.