打印成XPS文件，然后将其打印到打印机

Question

我试图打印RichTextBox的内容，如果我打印到打印机上的问题太多。 但是，当我打印到XPS文件（通过Windows中的XPS打印机），然后将此文件打印到打印机一切正常。

所以我可以通过编程来完成所有这些事情吗？

这里是我的打印方法：

public int PrintRotate(bool rotate, PrintPageEventArgs e, int charFrom, int charTo) 
    { 
     //Calculate the area to render and print 
     RECT rectToPrint; 
     rectToPrint.Top = (int)(e.MarginBounds.Top * anInch); 
     rectToPrint.Bottom = (int)(e.MarginBounds.Bottom * anInch); 
     rectToPrint.Left = (int)(e.MarginBounds.Left * anInch); 
     rectToPrint.Right = (int)(e.MarginBounds.Right * anInch); 

     //Calculate the size of the page 
     RECT rectPage; 
     rectPage.Top = (int)(e.PageBounds.Top * anInch); 
     rectPage.Bottom = (int)(e.PageBounds.Bottom * anInch); 
     rectPage.Left = (int)(e.PageBounds.Left * anInch); 
     rectPage.Right = (int)(e.PageBounds.Right * anInch); 

     IntPtr hdc = e.Graphics.GetHdc(); 

     FORMATRANGE fmtRange; 
     fmtRange.chrg.cpMax = charTo;    //Indicate character from to character to 
     fmtRange.chrg.cpMin = charFrom; 
     fmtRange.hdc = hdc;     //Use the same DC for measuring and rendering 
     fmtRange.hdcTarget = hdc;    //Point at printer hDC 
     fmtRange.rc = rectToPrint;    //Indicate the area on page to print 
     fmtRange.rcPage = rectPage;   //Indicate size of page 


     SetGraphicsMode(fmtRange.hdc, GM_ADVANCED); 

     XFORM par = new XFORM(); 

     par = new XFORM(); 
     par.eM11 = 1; 
     par.eM12 = 0; 
     par.eM21 = 0; 
     par.eM22 = 1; 
     par.eDx = -e.PageSettings.Margins.Left/100 * e.PageSettings.PrinterResolution.X; 
     par.eDy = -e.PageSettings.Margins.Top/100 * e.PageSettings.PrinterResolution.Y; 
     ModifyWorldTransform(fmtRange.hdc, ref par, MWT_LEFTMULTIPLY); 

     IntPtr res = IntPtr.Zero; 

     IntPtr wparam = IntPtr.Zero; 
     wparam = new IntPtr(1); 

     //Get the pointer to the FORMATRANGE structure in memory 
     IntPtr lparam = IntPtr.Zero; 
     lparam = Marshal.AllocCoTaskMem(Marshal.SizeOf(fmtRange)); 
     Marshal.StructureToPtr(fmtRange, lparam, false); 

     //Send the rendered data for printing 
     res = SendMessage(Handle, EM_FORMATRANGE, wparam, lparam); 

     //Free the block of memory allocated 
     Marshal.FreeCoTaskMem(lparam); 

     //Release the device context handle obtained by a previous call 
     e.Graphics.ReleaseHdc(hdc); 

     //Return last + 1 character printer 
     return res.ToInt32(); 
    } 

Answer 1

我有这样的问题，并最终作出了.XPS文件，然后发送该打印机。

从您的问题中，听起来您已经有了“打印”到xps文件的过程，这很好，因为我不知道将富文本框打印到xps文件的过程。在我的场景中，我需要在不使用ms office的情况下打印一个文件夹，所以我最终制作了一个XPS文件，用代码编辑它，然后将其发送到打印机。

这是我使用的XPS文件直接发送到打印机代码：

LocalPrintServer localPrintServer = new LocalPrintServer(); 
var queue = localPrintServer.GetPrintQueue("NameOfPrinter"); 
PrintSystemJobInfo xpsPrintJob = queue.AddJob("name of print job", "my/xps/path.xps",false); 

还记得这个代码的工作，你需要将引用添加到System.Printing AND“ReachFramework”。花了我更多的时间，比我想要记住找出为什么我无法访问打印作业。

大多数打印机应该以我的经验支持这一点。常见的，它甚至可以在存储部门的奇数“条码打印机”上工作。