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goliatone/gist:19271d6bba18ea49f4c3b7ba83a000df

Forked from cprovatas/gist:6acef442fc43123bcd5d5e937dc7951a
Created July 16, 2018 05:14
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Monitor Mouse Event for any arbitrary application on macOS in Swift
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gistfile1.swift
let callback: CGEventTapCallBack = { (tapProxy, eventType, event, refcon) -> Unmanaged<CGEvent>? in
debugPrint("we are monitoring the mouse event here")
return nil
}
let eventMask = (1 << CGEventType.leftMouseDown.rawValue) | (1 << CGEventType.leftMouseUp.rawValue)
let machPort = CGEvent.tapCreateForPid(pid: 40529, place: .tailAppendEventTap, options: .defaultTap, eventsOfInterest: CGEventMask(eventMask), callback: callback, userInfo: nil)!
let runLoopSource = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, machPort, 0)
CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, .commonModes)
CGEvent.tapEnable(tap: machPort, enable: true)
CFRunLoopRun()
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