Menu extra

File:Am mac os x menuextras.png

Menu Extra

A menu extra is a user interface element found in the macOS operating system, which is part of the menu bar. Menu extras are small icons that appear on the right side of the menu bar, providing quick access to system functions and third-party applications. They are similar to the system tray icons found in other operating systems like Windows.

Overview

Menu extras serve as a convenient way for users to interact with various system settings and applications without having to open full applications or navigate through system preferences. They are typically used for functions that require frequent access or monitoring, such as adjusting volume, checking battery status, or connecting to Wi-Fi networks.

Functionality

Menu extras can perform a variety of functions, including:

• System Monitoring: Displaying the status of system resources such as CPU usage, memory usage, and network activity.
• Notifications: Providing alerts and notifications from applications or system services.
• Quick Access: Offering quick access to frequently used settings like Bluetooth, AirPlay, or Do Not Disturb mode.
• Third-Party Applications: Allowing third-party applications to provide additional functionality directly from the menu bar.

Customization

Users can customize which menu extras appear in the menu bar by:

• System Preferences: Many system menu extras can be enabled or disabled through the System Preferences application.
• Drag and Drop: Users can rearrange menu extras by holding the Command key and dragging the icons to the desired position.
• Third-Party Tools: Applications like Bartender allow for more advanced customization of menu extras, including hiding or rearranging them.

Development

Developers can create custom menu extras for their applications using the macOS SDK. This involves:

• NSStatusItem: The primary class used to create menu extras in macOS applications.
• Customization: Developers can customize the appearance and behavior of menu extras, including adding menus, buttons, and other interactive elements.

History

Menu extras have been a part of macOS since the early versions of the operating system, evolving over time to include more features and better integration with system services and third-party applications.

Also see

- macOS - System Preferences - Notification Center - Dock (macOS) - Bartender (software)