FORM任务栏提示？

[kuohai]

请问如何让窗口form如果触发一个方法，使窗口在任务栏上蓝色提示，就像QQ来信息时的样子？好实现吗？或者直接让窗口成为焦点窗口？先谢谢了

[starts_2000]

WinAPI FlashWindow

[lzhdim]

        /// <summary>
        /// 获取程序运行实例
        /// </summary>
        /// <returns></returns>
        private static Process RunningInstance()
        {
            Process current = Process.GetCurrentProcess();
            Process[] processes = Process.GetProcessesByName(current.ProcessName);
            //遍历与当前进程名称相同的进程列表
            foreach (Process process in processes)
            {
                //如果实例已经存在则忽略当前进程  
                if (process.Id != current.Id)
                {
                    //保证要打开的进程同已经存在的进程来自同一文件路径
                    if (Assembly.GetExecutingAssembly().Location.Replace("/", "\\") == current.MainModule.FileName)
                    {
                        //返回已经存在的进程
                        return process;
                    }
                }
            }
            return null;
        }
        /// <summary>
        /// 处理已经运行的实例
        /// </summary>
        /// <param name="instance"></param>
        private static void HandleRunningInstance(Process instance)
        {
            MessageBox.Show("已经在运行！", "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
            ShowWindowAsync(instance.MainWindowHandle, 1);  //调用api函数，正常显示窗口
            SetForegroundWindow(instance.MainWindowHandle); //将窗口放置最前端
        }
        [DllImport("User32.dll")]
        private static extern bool ShowWindowAsync(System.IntPtr hWnd, int cmdShow);
        [DllImport("User32.dll")]
        private static extern bool SetForegroundWindow(System.IntPtr hWnd);

使用win32 api , flashwindow 或者 setforegroundwindow ...