我有一个WinForms“按钮”，如何在不激活按钮的情况下单击并拖动它？(I have a WinForms “button”, how do I click and drag it without activating the button?)

 我的WinForm只是一个40x40按钮，用户可以点击呼叫寻求帮助。 一切正常，除非您单击并拖动以将按钮移动到屏幕的其他部分，按钮在释放鼠标左键后激活（完成“单击”）。 有没有办法在mousedown事件发生时检查窗口是否已移动并在此情况下停止mouseclick事件？ 
 
 我目前如何“点击并拖动”： 
 
    private void btn_MouseDown(object sender, MouseEventArgs e)
    {
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            MouseDownLocation = e.Location;
        }
    }

    private void btn_MouseMove(object sender, MouseEventArgs e)
    {
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            this.Left = e.X + this.Left - MouseDownLocation.X;
            this.Top = e.Y + this.Top - MouseDownLocation.Y;
        }
    }

My WinForm is just a 40x40 button that users can click to call for help. Everything works except when you click and drag to move the button to a different part of the screen the button activates after releasing the left mouse button (completing the "click"). Is there a way to check if the window has moved while the mousedown event is happening and stop the mouseclick event in that case?
 
How I am currently doing "click and drag":
 
    private void btn_MouseDown(object sender, MouseEventArgs e)
    {
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            MouseDownLocation = e.Location;
        }
    }

    private void btn_MouseMove(object sender, MouseEventArgs e)
    {
        if (e.Button == System.Windows.Forms.MouseButtons.Left)
        {
            this.Left = e.X + this.Left - MouseDownLocation.X;
            this.Top = e.Y + this.Top - MouseDownLocation.Y;
        }
    }

原文：