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In macOS Sierra 10.12, we introduced a new way to keyboard key remapping. This document will discuss the various ways to do so.

Printable Mac Keyboard Shortcut Page for macOS Sierra. There are hundreds of keyboard shortcuts for Mac users. There are Mission Control shortcuts, Finder shortcuts, system shortcuts, application shortcuts and more. Many you can find by just looking through the menu bar for that application. Although there’s no full built-in keyboard remapper for Mac OS X, you can remap shortcuts. You can also remap modifier keys in the Keyboard System Preferences pane. While this feature is slim competition for a true keyboard remapper, often this is all you want to do.

Introduction

Under macOS Sierra 10.12, the mechanism for key remapping was changed. This Technical Note is for developers of key remapping software so that they can update their software to support macOS Sierra 10.12. We present 2 solutions for implementing key remapping functionality for macOS 10.12 in this Technical Note. The command line hidutil tool is useful for executable scripts. macOS applications can use the IOHIDEventSystemClient API to achieve this functionality. The scope of the key remapping function applies to all users and will remain in effect so long as there is an active keyboard service. Key remappings are lost when the system is restarted or if the keyboard service is removed (for example when the last keyboard is disconnected.) No special privileges are required to use key remapping.

Scripting Key Remapping

Keys can be remapped via the command-line tool hidutil. For example, use the hidutil command-line tool to remap the 'A' key to the 'B' key as shown in Listing 1. The map array consists of two key/value pairs that contain the source (HIDKeyboardModifierMappingSrc) and destination (HIDKeyboardModifierMappingDstKey) of the key remapping. The keys take a hexadecimal value that consists of 0x700000000 or’d with the desired keyboard usage value (see Table 1 for usage values).

Listing 1 Remapping keys in a script

A script can check the key remapping state by using the hidutil command-line tool as shown in Listing 2. A null result indicates that there are no key remappings active.

Listing 2 Checking Key Remapping state

Programmatic Key Remapping

The IOKit HID APIs can be used for key remapping. The user will provide a dictionary of key remapping that the HID event system will apply to the keyboard.

Listing 3 : Key Remapping using IOKit HID APIs.

Key Table Usages

Table 1 presents a list of keyboard usages and their usage IDs for use in key remapping. This list is from the USB HID Usage Tables Specification, Section 10 Keyboard /Keypad Page.

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Copyright © 2017 Apple Inc. All Rights Reserved. Terms of Use Privacy Policy Updated: 2017-08-21

Mac Os

Mac Os Sierra Download

There are hundreds of keyboard shortcuts for Mac users. There are Mission Control shortcuts, Finder shortcuts, system shortcuts, application shortcuts and more. Many you can find by just looking through the menu bar for that application. You can find system ones by looking in the System Preferences under Keyboard.
But some keyboard shortcuts are more useful than others. And some are harder to remember than others.
So MacMost has compiled a list of our top “power user” keyboard shortcuts for macOS 10.12 (Sierra). Here they all are on a single PDF page, downloadable and printable: The MacMost Sierra Power User Keyboard Shortcuts. Download it and pass it along!