如何在AS3中创建自定义MouseEvent.CLICK事件(将参数传递给函数)？

import flash.events.MouseEvent;

class CustomMouseEvent extends MouseEvent {
    public static const CUSTOM_CLICK:String = "customClick";
    public var customData:Object;

    public function CustomMouseEvent(type:String, bubbles:Boolean = false, cancelable:Boolean = false, customData:Object = null) {
        super(type, bubbles, cancelable);
        this.customData = customData;
    }

    override public function clone():Event {
        return new CustomMouseEvent(type, bubbles, cancelable, customData);
    }
}

var customEvent:CustomMouseEvent = new CustomMouseEvent(CustomMouseEvent.CUSTOM_CLICK, true, false, {param1: "value1", param2: "value2"});

addEventListener(CustomMouseEvent.CUSTOM_CLICK, handleCustomClick);

function handleCustomClick(event:CustomMouseEvent):void {
    trace("Custom click event received. Param1: " + event.customData.param1 + ", Param2: " + event.customData.param2);
}