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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