主要是想试试Microsoft XPS Document 打印时怎样去掉那个“将打印输出另存为”对话框

using System;using System.Drawing;using System.Drawing.Printing;using System.Printing;using System.Runtime.InteropServices;namespace ConsoleApplication4{    /// 
    /// 控制台玩 Microsoft XPS Document 打印    /// 
    class Program    {        //Win32 Api定义        [DllImport("user32.dll")]        static extern IntPtr FindWindow(string lpClassName, string lpWindowName);        [DllImport("user32.dll")]        static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfeter, string lpszClass, string lpszWindow);        [DllImport("user32.dll")]        static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, String lParam);        [DllImport("user32.dll")]        static extern bool PostMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);        //Win32消息定义        const uint WM_SETTEXT = 0x000c;        const uint WM_IME_KEYDOWN = 0x0290;        const uint WM_LBUTTONDOWN = 0x0201;        const uint WM_LBUTTONUP = 0x0202;        static void Main(string[] args)        {            PrintDocument pd = new PrintDocument();            pd.PrinterSettings.PrinterName = "Microsoft XPS Document Writer";            pd.PrintController = new StandardPrintController();            pd.BeginPrint += Pd_BeginPrint;            pd.PrintPage += Pd_PrintPage;            pd.EndPrint += Pd_EndPrint;            Action printTask = () =>            {                System.Threading.Thread t = new System.Threading.Thread(() =>                {                    while (true)                    {                        IntPtr hWnd = FindWindow("#32770", "将打印输出另存为");                        if (hWnd != IntPtr.Zero)                        {                            IntPtr hChild;                            // 由于输入框被多个控件嵌套，因此需要一级一级的往控件内找到输入框                            hChild = FindWindowEx(hWnd, IntPtr.Zero, "DUIViewWndClassName", String.Empty);                            hChild = FindWindowEx(hChild, IntPtr.Zero, "DirectUIHWND", String.Empty);                            hChild = FindWindowEx(hChild, IntPtr.Zero, "FloatNotifySink", String.Empty);                            hChild = FindWindowEx(hChild, IntPtr.Zero, "ComboBox", String.Empty);                            hChild = FindWindowEx(hChild, IntPtr.Zero, "Edit", String.Empty);                            SendMessage(hChild, WM_SETTEXT, IntPtr.Zero, AppDomain.CurrentDomain.BaseDirectory + Guid.NewGuid().ToString().Replace("-", "") + ".xps");                            System.Threading.Thread.Sleep(100);                            // 找到对话框内的保存按钮                            hChild = IntPtr.Zero;                            hChild = FindWindowEx(hWnd, IntPtr.Zero, "Button", "保存(&S)");                            // 向保存按钮发送2个消息，以模拟click消息，借此来按下保存按钮                            PostMessage(hChild, WM_LBUTTONDOWN, IntPtr.Zero, IntPtr.Zero);                            PostMessage(hChild, WM_LBUTTONUP, IntPtr.Zero, IntPtr.Zero);                          }                        System.Threading.Thread.Sleep(100);                    }                });                t.Start();                int index = 0;                while (index < 10)                {                    pd.Print();                    LocalPrintServer prtSrv = new LocalPrintServer();                    PrintQueue queue = prtSrv.GetPrintQueue("Microsoft XPS Document Writer");                    do                    {                        System.Threading.Thread.Sleep(1000);                        queue.Refresh();                    } while (queue.NumberOfJobs > 0);                    Console.WriteLine(DateTime.Now +string.Format( "任务{0}打印完成。",index));                     index++;                }            };            printTask.BeginInvoke(null, null);                        Console.ReadLine();        }        private static void Pd_EndPrint(object sender, PrintEventArgs e)        {            Console.WriteLine(DateTime.Now + e.PrintAction.ToString()+"!");        }        private static void Pd_PrintPage(object sender, PrintPageEventArgs e)        {            var g = e.Graphics;            g.DrawString("Just A Print Test." +                        Environment.NewLine +                        Guid.NewGuid().ToString().Replace("-", ""),new System.Drawing.Font("微软雅黑", 12F), new SolidBrush(Color.Black), new Point(2, 2));        }        private static void Pd_BeginPrint(object sender, PrintEventArgs e)        {            Console.WriteLine(DateTime.Now + e.PrintAction.ToString() + "!");        }    }}