Key Event Handling in Cocoa Applications

Increase the productivity of your users by expediting common operations via keyboard shortcuts. Discover your options for implementing key equivalents for menus and controls, and how hot keys and Services can handle events from within any app. Learn the ways that users can customize key equivalents and how your app can facilitate their use. Also learn about advanced techniques for emulating contextual menus when you need ultimate control.

WWDC 2010 - macOS