Recently, Praj blogged about printing content of a RichTextBox. Normally, if you use the documentPaginator or the visual, you might end up with some text clipped. Not a nice thing to happenJ. One thing that bugs me while printing is the print dialog. Often times, I just want to use a printer that’s not busy. Just don’t make me wait. It’s pretty simple to code  and its worth it. No more waiting at the printer. ;)

foreach (PrintQueue pq in GetPrintQueues("\\\\servername"))
            {
                if (!pq.IsBusy)
                {
                   Print(pq);
                   return;
                }
            }
         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();
        }
         void Print(PrintQueue pq)
        {
            TextRange sourceDocument = new TextRange(richTextBox.Document.ContentStart, richTextBox.Document.ContentEnd);
            MemoryStream stream = new MemoryStream();
            sourceDocument.Save(stream, DataFormats.Xaml);
 
           // Clone the source document's content into a new FlowDocument.
            FlowDocument flowDocumentCopy = new FlowDocument();
            TextRange copyDocumentRange = new TextRange(flowDocumentCopy.ContentStart, flowDocumentCopy.ContentEnd);
            copyDocumentRange.Load(stream, DataFormats.Xaml);

            // 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)flowDocumentCopy).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 = flowDocumentCopy.PagePadding;
                flowDocumentCopy.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));
                flowDocumentCopy.ColumnWidth = double.PositiveInfinity;
                // Send DocumentPaginator to the printer.
                docWriter.Write(paginator);
            }
        }

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