private async void MainWindow_ContentRendered(object sender, EventArgs e)
{
await Task.Delay(1000);
var pageSize = new Size(1280 * 8, 720 * 8);
var document = new FixedDocument();
document.DocumentPaginator.PageSize = pageSize;
var fixedPage = new FixedPage
{
Width = pageSize.Width,
Height = pageSize.Height,
};
for (int i = 0; i < 100; i++)
{
fixedPage.Children.Add(new Border
{
Width = pageSize.Width,
Height = pageSize.Height,
Background = new VisualBrush
{
Visual = DemoImage,
}
});
}
fixedPage.Measure(pageSize);
fixedPage.Arrange(new Rect(new Point(), pageSize));
fixedPage.UpdateLayout();
// Add page to document
var pageContent = new PageContent();
((IAddChild)pageContent).AddChild(fixedPage);
document.Pages.Add(pageContent);
// Send to the printer.
var pd = new PrintDialog();
pd.PrintDocument(document.DocumentPaginator, "正在打印……");
return;
using var _localPrintServer = new LocalPrintServer();
var _currentPrintQueue = _localPrintServer.DefaultPrintQueue;
_xpsDocumentWriter = PrintQueue.CreateXpsDocumentWriter(_currentPrintQueue);
//_xpsDocumentWriter.WritingProgressChanged += XpsDocumentWriter_WritingProgressChanged;
//_xpsDocumentWriter.WritingPrintTicketRequired += XpsDocumentWriterOnWritingPrintTicketRequired;
//_xpsDocumentWriter.WritingCancelled += XpsDocumentWriterOnWritingCancelled;
//_xpsDocumentWriter.WritingCompleted += XpsDocumentWriterOnWritingCompleted;
_vToXspd = (VisualsToXpsDocument)_xpsDocumentWriter.CreateVisualsCollator();
_vToXspd.BeginBatchWrite();
for (int i = 0; i < 100; i++)
{
_vToXspd?.WriteAsync(RootPanel);
}
_vToXspd?.EndBatchWrite();
}
private void btnPrintVisuals_Click(object sender, RoutedEventArgs e)
{
//Get hold of the visual you want to print.
List <Visual> visuals = GetVisuals();
// Create a Print dialog.
PrintDialog printDialog = new PrintDialog();
if (printDialog.ShowDialog() != true)
{
return;
}
// Get the default print queue
PrintQueue printQueue = printDialog.PrintQueue;
// Get an XpsDocumentWriter for the default print queue
XpsDocumentWriter xpsdw = PrintQueue.CreateXpsDocumentWriter(printQueue);
VisualsToXpsDocument vtxd =
(VisualsToXpsDocument)xpsdw.CreateVisualsCollator();
//Indicate we want any writes to be performed in a batch operation.
vtxd.BeginBatchWrite();
//Write out each visual.
visuals.ForEach(delegate(Visual visual)
{
//Scale the visual
Visual scaledVisual = ScaleVisual(visual, printQueue);
vtxd.Write(scaledVisual);
});
//Mark the end of the batch operation.
vtxd.EndBatchWrite();
}