using System;

public class Program

{

    public static void Main()

    {

        Control button = new Button();

        Console.WriteLine(button.GetClickState());

        button.Update();

        Console.WriteLine(button.GetClickState());

    }

}

​

​

​

public abstract class Control

{

    private ClickState _clickState;

​

    public Control()

    {

        _clickState = ClickState.Start;

    }

​

    public virtual void Update()

    {

        if(true/*some check if mouse is over the control*/)

        {

            _clickState = ClickState.MouseOver;

            // Try to add console output to see all values here

            Console.WriteLine($"New state: {_clickState}");

        }

    }

    public virtual ClickState GetClickState()

    {

        return _clickState;

    }

}

​

public class Button : Control

{

    public Button(): base()

    { }

}

​

public enum ClickState

{

    Start, MouseOver, LeftClick

}