BOOL WINAPI FlashWindowEx(
　　__in PFLASHWINFO pfwi
);

/// <summary>
/// 閃爍窗口
/// </summary>
/// <param name="pwfi">窗口閃爍信息結(jié)構(gòu)</param>
/// <returns></returns>
[DllImport("user32.dll")]
public static extern bool FlashWindowEx(ref FLASHWINFO pwfi);

/// <summary>
/// 閃爍類型
/// </summary>
public enum flashType : uint
{
  FLASHW_STOP = 0, //停止閃爍
  FALSHW_CAPTION = 1, //只閃爍標(biāo)題
  FLASHW_TRAY = 2, //只閃爍任務(wù)欄
  FLASHW_ALL = 3, //標(biāo)題和任務(wù)欄同時閃爍
  FLASHW_PARAM1 = 4,
  FLASHW_PARAM2 = 12,
  FLASHW_TIMER = FLASHW_TRAY | FLASHW_PARAM1, //無條件閃爍任務(wù)欄直到發(fā)送停止標(biāo)志或者窗口被激活，如果未激活，停止時高亮
  FLASHW_TIMERNOFG = FLASHW_TRAY | FLASHW_PARAM2 //未激活時閃爍任務(wù)欄直到發(fā)送停止標(biāo)志或者窗體被激活，停止后高亮
}

/// <summary>
/// 包含系統(tǒng)應(yīng)在指定時間內(nèi)閃爍窗口次數(shù)和閃爍狀態(tài)的信息
/// </summary>
public struct FLASHWINFO
{
  /// <summary>
  /// 結(jié)構(gòu)大小
  /// </summary>
  public uint cbSize;
  /// <summary>
  /// 要閃爍或停止的窗口句柄
  /// </summary>
  public IntPtr hwnd;
  /// <summary>
  /// 閃爍的類型
  /// </summary>
  public uint dwFlags;
  /// <summary>
  /// 閃爍窗口的次數(shù)
  /// </summary>
  public uint uCount;
  /// <summary>
  /// 窗口閃爍的頻度，毫秒為單位；若該值為0，則為默認(rèn)圖標(biāo)的閃爍頻度
  /// </summary>
  public uint dwTimeout;
}

/// <summary>
/// 閃爍窗口
/// </summary>
/// <param name="hWnd">窗口句柄</param>
/// <param name="type">閃爍類型</param>
/// <returns></returns>
public static bool FlashWindowEx(IntPtr hWnd, flashType type)
{
  FLASHWINFO fInfo = new FLASHWINFO();
  fInfo.cbSize = Convert.ToUInt32(Marshal.SizeOf(fInfo));
  fInfo.hwnd = hWnd;//要閃爍的窗口的句柄，該窗口可以是打開的或最小化的
  fInfo.dwFlags = (uint)type;//閃爍的類型
  fInfo.uCount = UInt32.MaxValue;//閃爍窗口的次數(shù)
  fInfo.dwTimeout = 0; //窗口閃爍的頻度，毫秒為單位；若該值為0，則為默認(rèn)圖標(biāo)的閃爍頻度
  return FlashWindowEx(ref fInfo);
}