Printing RTF to specific printers in wpf ... without user interaction

Question

I have what should be a simple task but apparently is not.

I have a WPF program that generates 2 RTF documents. I need these two documents to be printed on two different local printers ( there are reasons why). However, I do not want any user interaction. The two printers have different names ( "PrinterA", "PrinterB"), These two printers are not usually the default printers.

I see a lot of code on how to print using the PrintDialog but nothing that shows me how to select a printer with a "pre-known" name.

Does anyone have an example of sending a document to a specific printer?

Answer 1

Hi

Try the method in below link:http://support.microsoft.com/default.aspx?scid=kb;en-us;812425

If you have any additioanl questions, plase feel free to let me know.

Have a nice day.

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Annabella Luo[MSFT]
MSDN Community Support | Feedback to us

Answer 2

We are temporarily marking this as "Answer", if you have any concerns or new findings; please feel free to let me know.
Best regards.

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Annabella Luo[MSFT]
MSDN Community Support | Feedback to us

Answer 3

Here is my partial solution made of pieces I found around the web.

        private IEnumerable<PrintQueue> GetPrintQueues(string servername)
        {
            PrintServer ps;
            if (string.IsNullOrEmpty(servername))
            {
                // local printer name
                ps = new LocalPrintServer();
            }
            else
            {
                // network printer share
                ps = new PrintServer(servername);
            }
            return ps.GetPrintQueues();
        }

        PrintQueue getPrintQueue(string printerName)
        {
            IEnumerable<PrintQueue> queues = GetPrintQueues(Properties.Settings.Default.Server);

            if (queues != null)
            {
                foreach (PrintQueue pq in queues)
                {
                    if (pq.Name == printerName)
                    {
                        return pq;
                    }
                }
            }

            return null;

        }


        public void printRtf(string rtf, string printer)
        {
            System.IO.Stream s = new System.IO.MemoryStream(ASCIIEncoding.Default.GetBytes(rtf));

            FlowDocument flowDocument = new FlowDocument();

            TextRange textRange = new TextRange(flowDocument.ContentStart, flowDocument.ContentEnd);

            textRange.Load(s, DataFormats.Rtf);

            System.Drawing.Printing.PrinterSettings.StringCollection printers = System.Drawing.Printing.PrinterSettings.InstalledPrinters;

            PrintQueue pq = getPrintQueue(printer);
            // Create a XpsDocumentWriter object, open a Windows common print dialog.
            // This methods returns a ref parameter that represents information about the dimensions of the printer media.
            XpsDocumentWriter docWriter = PrintQueue.CreateXpsDocumentWriter(pq);
            PageImageableArea ia = pq.GetPrintCapabilities().PageImageableArea;
            PrintTicket pt = pq.UserPrintTicket;

            if (docWriter != null && ia != null)
            {
                DocumentPaginator paginator = ((IDocumentPaginatorSource)flowDocument).DocumentPaginator;
                // Change the PageSize and PagePadding for the document to match the CanvasSize for the printer device.
                paginator.PageSize = new Size((double)pt.PageMediaSize.Width, (double)pt.PageMediaSize.Height);
                //Thickness pagePadding = flowDocument.PagePadding;
                //flowDocument.PagePadding = new Thickness(
                //Math.Max(ia.OriginWidth, pagePadding.Left),
                //Math.Max(ia.OriginHeight, pagePadding.Top),
                //Math.Max((double)pt.PageMediaSize.Width - (double)(ia.OriginWidth + ia.ExtentWidth), pagePadding.Right),
                //Math.Max((double)pt.PageMediaSize.Height - (double)(ia.OriginHeight + ia.ExtentHeight), pagePadding.Bottom));
                //flowDocument.ColumnWidth = double.PositiveInfinity;
                // Send DocumentPaginator to the printer.
                docWriter.Write(paginator);
            }

        }

A call to printRtf with a string that has rtf formatting will get printed to the specified print. It is only a partial solution because I have noticed that the text prints off the left side of the paper in some printers and farther to the right than I'd like on other printers.

I am not sure what the problem is but this seems to work for my current purposes.

Answer 4

Thank you for your sharing, BuddyAtHome.

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Annabella Luo[MSFT]
MSDN Community Support | Feedback to us