标注式消息提示窗体（）

源码：WebCast20070608am_Demo.zip

效果：

Form2 制作不规则窗体：

Form2：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace MSNMessageForm
{
    public partial class Form2 : Form
    {
        private int heightMax, widthMax;
        public int StayTime = 5000;//窗体停留时间（默认为5秒）
        public int HeightMax
        {
            set
            {
                heightMax = value;
            }
            get
            {
                return heightMax;
            }
        }

        public int WidthMax
        {
            set
            {
                widthMax = value;
            }
            get
            {
                return widthMax;
            }
        }

        public Form2()
        {
            InitializeComponent();
        }

        private void Form2_Load(object sender, EventArgs e)
        {
            Screen[] screens = Screen.AllScreens;
            Screen screen = screens[0];//获取屏幕变量
            this.Location = new Point(screen.WorkingArea.Width - widthMax - this.Width, screen.WorkingArea.Height - this.Height);
            //WorkingArea为Windows桌面的工作区
            this.timer2.Interval = StayTime;

        }
        public void ScrollShow()
        {
            this.Height = 0;
            this.Show();
            this.timer1.Enabled = true;
        }
        private void ScrollUp()
        {
            if (Height < heightMax)
            {
                this.Height += 3;
                this.Location = new Point(this.Location.X, this.Location.Y - 3);
            }
            else
            {
                this.timer1.Enabled = false;
                this.timer2.Enabled = true;
            }
        }

        private void ScrollDown()
        {
            if (Height > 3)
            {
                this.Height -= 3;
                this.Location = new Point(this.Location.X, this.Location.Y + 3);
            }
            else
            {
                this.timer3.Enabled = false;
                this.Close();
            }
        }

        private void timer3_Tick(object sender, EventArgs e)
        {
            ScrollDown();
        }

        private void timer2_Tick(object sender, EventArgs e)
        {
            timer2.Enabled = false;
            timer3.Enabled = true;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            ScrollUp();

        }

        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }


    }
}

Form1:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace MSNMessageForm
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnTest_Click(object sender, EventArgs e)
        {
            Form2 form = new Form2();
            form.HeightMax = 120;//窗体滚动的高度
            form.WidthMax = 148;//窗体滚动的宽度
            form.ScrollShow();

        }
    }
}