Alex Lee的學習筆記

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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {

        [DllImport("user32.dll")]
        private static extern bool FlashWindowEx(ref FLASHWINFO fi);

        private struct FLASHWINFO
        {
            public uint cbSize;
            public IntPtr hwnd;
            public uint dwFlags;
            public uint uCount;
            public uint dwTimeout;
        }

        const uint FLASHW_ALL = 3;
        const uint FLASHW_TIMERNOFG = 12;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Deactivate(object sender, EventArgs e)
        {
            if (WindowState == FormWindowState.Minimized)
            {
                FLASHWINFO FlashWINInfo = new FLASHWINFO();
                FlashWINInfo.cbSize = Convert.ToUInt32(Marshal.SizeOf(FlashWINInfo));
                FlashWINInfo.hwnd = Handle;
                FlashWINInfo.dwFlags = FLASHW_ALL | FLASHW_TIMERNOFG;
                FlashWINInfo.uCount = uint.MaxValue;
                FlashWINInfo.dwTimeout = 0;
                FlashWindowEx(ref FlashWINInfo);
            }
        }
    }
}