wpf 状态栏图标背景闪烁提醒 FlashWindowEx

using System;using System.Runtime.InteropServices;using System.Windows;using System.Windows.Interop;namespace XCommon {public static class WindowExtensions {    #region Window Flashing API Stuff    private const UInt32 FLASHW_STOP = 0; //Stop flashing. The system restores the window to its original state.    private const UInt32 FLASHW_CAPTION = 1; //Flash the window caption.    private const UInt32 FLASHW_TRAY = 2; //Flash the taskbar button.    private const UInt32 FLASHW_ALL = 3; //Flash both the window caption and taskbar button.    private const UInt32 FLASHW_TIMER = 4; //Flash continuously, until the FLASHW_STOP flag is set.    private const UInt32 FLASHW_TIMERNOFG = 12; //Flash continuously until the window comes to the foreground.    [StructLayout(LayoutKind.Sequential)]    private struct FLASHWINFO {        public UInt32 cbSize; //The size of the structure in bytes.        public IntPtr hwnd; //A Handle to the Window to be Flashed. The window can be either opened or minimized.        public UInt32 dwFlags; //The Flash Status.        public UInt32 uCount; // number of times to flash the window        public UInt32 dwTimeout; //The rate at which the Window is to be flashed, in milliseconds. If Zero, the function uses the default cursor blink rate.    }    [DllImport("user32.dll")]    [return: MarshalAs(UnmanagedType.Bool)]    private static extern bool FlashWindowEx(ref FLASHWINFO pwfi);    [DllImport("user32.dll")]    private static extern IntPtr GetForegroundWindow();    #endregion    public static void FlashWindow(this Window win, UInt32 count = UInt32.MaxValue, UInt32 interval = 100) {        //Don't flash if the window is active        if (win.IsActive) return;        WindowInteropHelper h = new WindowInteropHelper(win);        FLASHWINFO info = new FLASHWINFO {            hwnd = h.Handle,            dwFlags = FLASHW_ALL | FLASHW_TIMER,            uCount = count,            dwTimeout = interval        };        info.cbSize = Convert.ToUInt32(Marshal.SizeOf(info));        FlashWindowEx(ref info);    }    public static void StopFlashingWindow(this Window win) {        WindowInteropHelper h = new WindowInteropHelper(win);        FLASHWINFO info = new FLASHWINFO();        info.hwnd = h.Handle;        info.cbSize = Convert.ToUInt32(Marshal.SizeOf(info));        info.dwFlags = FLASHW_STOP;        info.uCount = UInt32.MaxValue;        info.dwTimeout = 0;        FlashWindowEx(ref info);    }}}

使用方法：开始闪烁：FlashWindow(this Window win, UInt32 count = UInt32.MaxValue, UInt32 interval = 100)win 主窗体，count 闪动次数微信是4次，interval 闪烁间隔毫秒例子：WindowExtensions.FlashWindow(this, 5, 500);停止闪烁：private void window_OnActivated(object sender, EventArgs e) {        if (this.IsActive) {            if (notificationTimer.Enabled) {                notificationTimer.Enabled = false; // 停止闪烁通知区域图标                notifyIcon.Icon = icons[0];            }            WindowExtensions.StopFlashingWindow(this); // 停止闪烁任务栏        }    }