子类化NSControl，在Swift中不调用IBAction

import Cocoa

class CustomControl: NSControl {
    // Custom implementation goes here
}

import Cocoa

class CustomControl: NSControl {
    var customProperty: String
    
    override init(frame frameRect: NSRect) {
        customProperty = ""
        super.init(frame: frameRect)
        // Additional initialization code
    }
    
    required init?(coder: NSCoder) {
        customProperty = ""
        super.init(coder: coder)
        // Additional initialization code
    }
    
    // Custom methods and implementation goes here
}

import Cocoa

class CustomControl: NSControl {
    var customProperty: String
    
    override init(frame frameRect: NSRect) {
        customProperty = ""
        super.init(frame: frameRect)
        // Additional initialization code
    }
    
    required init?(coder: NSCoder) {
        customProperty = ""
        super.init(coder: coder)
        // Additional initialization code
    }
    
    override func mouseDown(with event: NSEvent) {
        // Custom mouse down implementation goes here
    }
    
    // Custom methods and implementation goes here
}

import Cocoa

class ViewController: NSViewController {
    @IBOutlet weak var customControl: CustomControl!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Additional setup code
    }
    
    // Other methods and implementation goes here
}