01-4 利用API函数实现闪烁动画窗体【*】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace Case01_4
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        //声明FlashWindow函数
        [System.Runtime.InteropServices.DllImportAttribute("user32.dll")]
        public static extern bool FlashWindow(IntPtr handle, bool bInvert);
        private void Form1_Load(object sender, EventArgs e)
        {
            this.timer1.Enabled = true;
            this.timer1.Interval = 500;
            this.timer2.Enabled = false;
            this.timer2.Interval = 260;
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            FlashWindow(this.Handle, true);
            pictureBox1.Visible = true;
            timer1.Enabled = false;
            timer2.Enabled = true;
        }
        private void timer2_Tick(object sender, EventArgs e)
        {
            FlashWindow(this.Handle, true);
            pictureBox1.Visible = false;
            timer2.Enabled = false;
            timer1.Enabled = true;
        }
        private void pictureBox1_Click(object sender, EventArgs e)
        {
        }
    }
}

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