当前WinForm程序强制关闭另一个WinForm程序，遇到的一个问题？

Question

当前WinForm程序强制关闭另一个WinForm程序，
因为另一个程序在运行的时候会在任务栏上显示一个图标，
所以在强制杀除时，任务栏上的图标没有消失，要通过鼠标移到任务栏上的图片上，才会消失。
求如何解决？代码如下：        /// <summary>
        /// 杀死应用程序
        /// </summary>
        /// <param name="appname"></param>
        protected void KillMainApp(string mainAppExe)
        {            
            Process[] allProcess = Process.GetProcesses();
            foreach (Process p in allProcess)
            {
                if (p.ProcessName.ToLower() + ".exe" == mainAppExe.ToLower())
                {
                    if (p.CloseMainWindow() == false)
                    {
                        p.Kill();
                        Thread.Sleep(1500);
                        LogHelper.WriteLog("kill"+ p.ProcessName);
                    }
                    else
                    {
                        p.WaitForExit(5000);
                        LogHelper.WriteLog("close" + p.ProcessName);
                    }
                }
            }
        }
c#winform

Answer 1

refer : http://wenwen.soso.com/z/q217774381.htm

Answer 2

这个方法不行的。 
我是 Kill 掉了。

Answer 3

试试用方法Shell_NotifyIcon，删除NotifyIcon。
[DllImport("shell32.dll")]
static extern bool Shell_NotifyIcon(uint dwMessage, [In] ref NOTIFYICONDATA pnid);

Answer 4

  发送sendmessage wm_close关闭另一个程序

Answer 5

我把 程序 改成 
protected void KillMainApp(string mainAppExe)
        {            
            Process[] allProcess = Process.GetProcesses();
            foreach (Process p in allProcess)
            {
                if (p.ProcessName.ToLower() + ".exe" == mainAppExe.ToLower())
                {
                        IntPtr hdl = p.MainWindowHandle;
                        int result = SendMessage(hdl, WM_CLOSE, 0, 0);
                }
            }
      }
经过测试，无法杀除程序。是否这种写法有问题？

Answer 6

在网上找的一个方法可行，
通过鼠标模拟点击任务栏，使其刷新任务栏。
        [DllImport("user32.dll", EntryPoint = "FindWindowEx")]
        public static extern int FindWindowEx(int hWnd1, int hWnd2, string lpsz1, string lpsz2);
        [DllImport("user32.dll", EntryPoint = "FindWindow")]
        public static extern int FindWindow(string lpClassName, string lpWindowName);
        [DllImport("user32.dll")]
        private static extern int GetWindowRect(IntPtr hwnd, out  Rect lpRect);
        public struct Rect
        {
            public int Left;
            public int Top;
            public int Right;
            public int Bottom;
        }
        private const int SM_CXSMICON = 49;
        private const int SM_CYSMICON = 50;
        [DllImport("user32")]
        public static extern int GetSystemMetrics( int nIndex );        [DllImport("user32.dll")]
        public static extern bool GetCursorPos(ref Point lpPoint);
        [DllImport("user32.dll", EntryPoint = "SetCursorPos")]
        private static extern int SetCursorPos(int x, int y);
        [DllImport("user32.dll", EntryPoint = "RedrawWindow")]
        public static extern int RedrawWindow(IntPtr hwnd, ref Rect lprcUpdate, int hrgnUpdate, int fuRedraw);int TrayWindow;
            Rect WindowRect;
            int SmallIconWidth;
            int SmallIconHeight;
            Point CursorPos = Point.Empty ;
            int Row;
            int Col;
            int hwd = FindWindow("Shell_TrayWnd",null );
            TrayWindow = FindWindowEx(hwd, 0, "TrayNotifyWnd", null);
            int isGet = GetWindowRect(new IntPtr(TrayWindow), out WindowRect);
            if (isGet == 0) return;            SmallIconWidth = GetSystemMetrics(SM_CXSMICON);
            SmallIconHeight = GetSystemMetrics(SM_CYSMICON);            GetCursorPos(ref CursorPos);            for (Row = 0; Row <= (WindowRect.Bottom - WindowRect.Top) / SmallIconHeight; Row++)
            {
                for (Col = 0; Col <= (WindowRect.Right - WindowRect.Left) / SmallIconWidth; Col++)
                {
                    SetCursorPos(WindowRect.Left + Col * SmallIconWidth, WindowRect.Top + Row * SmallIconHeight);
                    Thread.Sleep(1);
                }
            }            SetCursorPos(CursorPos.X, CursorPos.Y);            Rect tempRect = new Rect();
            RedrawWindow( new IntPtr( TrayWindow) , ref tempRect, 0, 0x85);