winform C#屏幕右下角弹出消息框,自动消失

private void button2_Click(object sender, EventArgs e)
      {
         Form1 frmShowWarning = new Form1();//Form1为要弹出的窗体(提示框),
            Point p = new Point(Screen.PrimaryScreen.WorkingArea.Width-frmShowWarning.Width, Screen.PrimaryScreen.WorkingArea.Height);
            frmShowWarning.PointToScreen(p);
            frmShowWarning.Location = p;
            frmShowWarning.Show();
            for (int i = 0; i <= frmShowWarning.Height; i++)
            {
                frmShowWarning.Location = new Point(p.X, p.Y - i);
                Thread.Sleep(10);//将线程沉睡时间调的越小升起的越快
            }
      }

若是要让提示窗过一段时间慢慢的消失,则能够在Form1中放一个timer计时器,设定他执行的频率为2000,Form1的load事件中timer1.Enable=true,当此弹出框load过2秒后timer1开始工做,在timer1事件中代码:this

private void timer1_Tick(object sender, EventArgs e)
        {
            timer1.Enabled = false;
            for (int i = 0; i <= this.Height; i++)
            {
                Point p = new Point(this.Location.X, this.Location.Y + i);//弹出框向下移动消失
                this.PointToScreen(p);//即时转换成屏幕坐标
                this.Location = p;// new Point(this.Location.X, this.Location.Y + i);
                System.Threading.Thread.Sleep(10);//线程睡眠时间调的越小向下消失的速度越快。
                
            }
            this.Close();//记得关闭此弹出框哦。OK
        }

若是想让弹出窗,过了半分钟开始渐渐透明一直到关闭,又想在透明阶段鼠标移上去弹出窗显示不透明则操做以下:线程

一、在弹出窗上添加两个timer控件。执行代码以下:code

timer2的事件中:orm

/// <summary>
        /// 
        /// 判断鼠标是否是还在弹出框上,若是不是则timer1又能够开始工做了
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timer2_Tick(object sender, EventArgs e)
        {
            timer1.Enabled = false;//timer1中止工做
            this.Opacity = 1;//弹出窗透明度设置为1,彻底不透明
            if (System.Windows.Forms.Control.MousePosition.X < this.Location.X && System.Windows.Forms.Control.MousePosition.Y < this.Location.Y)//以下
            {
                timer1.Enabled = true;
                timer2.Enabled = false;
            }
        }

timer1的事件中代码:事件

private void timer1_Tick(object sender, EventArgs e)
        {
            timer2.Enabled = false;//中止timer2计时器,
            if (this.Opacity > 0 && this.Opacity <= 1)//开始执行弹出窗渐渐透明
            {
                this.Opacity = this.Opacity - 0.05;//透明频度0.05
            }
            if (System.Windows.Forms.Control.MousePosition.X >= this.Location.X && System.Windows.Forms.Control.MousePosition.Y >= this.Location.Y)//每次都判断鼠标是不是在弹出窗上,使用鼠标在屏幕上的坐标跟弹出窗体的屏幕坐标作比较。
            {
                timer2.Enabled = true;//若是鼠标在弹出窗上的时候,timer2开始工做
                timer1.Enabled = false;//timer1中止工做。
            }
            if (this.Opacity == 0)//当透明度==0的时候,关闭弹出窗以释放资源。
            {
                this.Close();
            }
        }