![]() ![]() ![]() Fifteen years ago, Adam Engst used a utility called Teleport that provided exactly these features (see “ Tools We Use: Teleport,” 27 August 2007). More on that shortly.Īlthough we don’t know Universal Control’s provenance, it’s far from a new idea, at least with regard to controlling one Mac from another. Similarly, with Macs, you need to differentiate between viewing a screen with AirPlay and controlling it using Universal Control. Sidecar still exists and, in fact, shares a menu with Universal Control in the Displays preference pane. It’s important to distinguish Universal Control from Sidecar, Apple’s technology for turning an iPad into a secondary display for the Mac (see “ Catalina’s Sidecar Turns an iPad into a Second Mac Monitor,” 21 October 2019). Even better, you can drag files and other items between devices. With an iPad, it acts though you have connected a trackpad and hardware keyboard (see “ The iPad Gets Full Trackpad and Mouse Support,” 28 March 2020). Keyboard focus-which device receives typed keystrokes-follows the pointer, so once you move the pointer to another device and click an app, that device behaves just as though you’re using it directly. ![]() Once you’ve set up Universal Control in System Preferences > Displays, you can move your pointer from one Mac to another Mac or an iPad and back, just as though they were external monitors making up an extended Desktop. Despite the feature appearing in macOS 12.3 and iPadOS 15.4, Apple labels it as a beta, suggesting that users may still encounter hiccups.Įven for a beta, the experience is nearly seamless. Universal Control lets you use a single keyboard and pointing device connected to one Mac to control multiple Macs and iPads. Universal Control may be the most-delayed feature of Apple’s 2021 operating systems, only just now appearing in macOS 12.3 Monterey and iPadOS 15.4, but it’s one of the most interesting. Using Universal Control in macOS 12.3 Monterey and iPadOS 15.4 #1667: OS Rapid Security Responses, 1Password and 2FA, using Siri to request music.#1668: Updated Rapid Security Responses, OS public betas, screen saver bug fixed, “Red Team Blues” book review.#1669: OS security updates, ambiguity of emoji, small business payments with Melio, Twitter now X.#1670: Arc Web browser hits 1.0 release, “Do You Use It?” polls about Apple features.#1671: Apple Q3 2023 earnings, new Beats headphones and earbuds, Stage Manager adoption rate, do you use Spotlight?.This will display the list of existing breakpoints without the one we just deleted: > clearīreakpoint OurApplication.buildInstanceString(int)īreakpoint OurApplication.main(java.lang. To verify whether the breakpoint has correctly been removed, we'll use clear without arguments. The identifier is exactly the same as the one used earlier with the command stop: > clear OurApplication:7 To achieve this, we'll use the command clear followed by the breakpoint's identifier. Now that we've evaluated all the variables we needed to, we'll want to delete the breakpoints set earlier and let the thread continue its processing. New OurApplication(10).instanceString = "10. We'll evaluate a new instance of OurApplication for which we've passed an integer as a constructor parameter: > print new OurApplication(10).instanceString We can also see that print has exactly the same behavior as eval: they both evaluate an expression or a variable. Unlike the other variables, local variables don't require to specify a class or an instance. Next, let's see the variable i: > print i ![]()
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