C#处理窗体的最小化事件及恢复正常窗体事件

//窗体大小发生变化时 
        private void FormMain_Resize(object sender, EventArgs e)
        {
            //窗体最小化时
            if(this.WindowState==FormWindowState.Minimized)
            {
                //停止定时器
                this.timerA.Stop();
                this.timerB.Stop();
                this.timerC.Stop();
                this.timerD.Stop();
            }

            //窗体恢复正常时
            if (this.WindowState==FormWindowState.Normal)
            {
                //启动定时器
                this.timerA.Start();
                this.timerB.Start();
                this.timerC.Start();
                this.timerD.Start();
            }
        }