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Application Launch Event Detection

Is there a way to somehow connect to the system event of the application launch on Mac OS X? For example, let's say that I want a simple script or program to run every time I open a particular application. I hope there is some kind of Cocoa API for this, but I haven't found it yet.

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Ah, I figured it out myself. There's a class called NSWorkspace that contains an NSNotificationCenter that you can add observers too. I added an observer for the name "NSWorkspaceDidLaunchApplicationNotification" and this seems to do the trick.

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Source: https://habr.com/ru/post/1780784/

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