使用MergeAndValidatePrintTicket，VisualsToXpsDocument批量visual（网络搜集）

Xaml Console Printer.cs

namespace XamlConsolePrinter
{
    using System.Printing;
    using System.Threading;
    using System.Threading.Tasks;
    using System.Threading.Tasks.Schedulers;
    using System.Windows;
    using System.Windows.Controls;
    using System.Windows.Xps;

    internal class Program
    {
        private class PrintControl : UserControl
        {
            public PrintControl()
            {
                var textBlock = new TextBlock {Text = "Hi there!"};
                Content = textBlock;
            }
        }

        private static void Main(string[] args)
        {
            var scheduler = new StaTaskScheduler(numberOfThreads: 1);

            var task = Task.Factory
                .StartNew(() =>
                              {
                                  var printQueue = LocalPrintServer.GetDefaultPrintQueue();

                                  var ticket = new PrintTicket
                                                   {
                                                       OutputColor = OutputColor.Color,
                                                       PageMediaType = PageMediaType.Plain,
                                                       PageOrientation = PageOrientation.Landscape,
                                                       PageMediaSize = new PageMediaSize(PageMediaSizeName.Roll04Inch),
                                                       PageBorderless = PageBorderless.Borderless
                                                   };

                                  var result = printQueue.MergeAndValidatePrintTicket(printQueue.UserPrintTicket, ticket);

                                  var pageMediaSize = result.ValidatedPrintTicket.PageMediaSize;
                                  if (!pageMediaSize.Height.HasValue || !pageMediaSize.Width.HasValue)
                                      return;

                                  // XAML control to print
                                  var visual = new PrintControl();
                                  visual.Arrange(new Rect(new Size(pageMediaSize.Width.Value, pageMediaSize.Height.Value)));

                                  var documentWriter = PrintQueue.CreateXpsDocumentWriter(printQueue);
                                  var visualsToXpsDocument = (VisualsToXpsDocument) documentWriter.CreateVisualsCollator();

                                  if (visualsToXpsDocument == null) return;

                                  visualsToXpsDocument.Write(visual);
                                  visualsToXpsDocument.EndBatchWrite();
                              }, CancellationToken.None, TaskCreationOptions.None, scheduler);

            task.Wait();
        }
    }
}