Print to an XPS file, and then print it to a printer

Question

I tried to print the contents of a RichTextBox, and there were too many errors when printing to a printer. But when I print to an XPS file (via an XPS printer on Windows) and then print this file to a printer, everything is fine.

So what can I do all this programmatically?

Here is my printing method:

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

I had such a problem, and in the end I created the .XPS file and then sent it to the printer.

From your question, it looks like you already have the process of “printing” the xps file, which is good, since I don’t know anything about the process of printing a rich text field into an xps file. In my scripts, I needed to print the documentation without using ms office, so I finished creating the XPS file, edited it in the code, and sent it to the printer.

This is the code I use to send the xps file directly to the printer:

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

Also remember that for this code to work, you need to add links to System.Printing AND "ReachFramework". He took me longer than I did not forget to find out why I could not get access to the printed program.

Most printers should support this in my experience. Ordinary, and it even works on an odd "bar-printer" in our store.