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();
}
//</SnippetWriteAsyncToXpsWithVisual>
private void SaveVisualsAsync(XpsDocumentWriter xpsdw, List <Visual> vc)
{
_xpsdwActive = xpsdw;
xpsdw.WritingCompleted +=
new WritingCompletedEventHandler(AsyncSaveCompleted);
xpsdw.WritingProgressChanged +=
new WritingProgressChangedEventHandler(AsyncSavingProgress);
// Setup for writing multiple visuals
VisualsToXpsDocument vToXpsD = (VisualsToXpsDocument)xpsdw.CreateVisualsCollator();
_batchProgress = 0;
_activeVtoXPSD = vToXpsD;
// Iterate through all visuals in the collection
foreach (Visual v in vc)
{
vToXpsD.WriteAsync(v); // Write each visual to single page.
}
}// end:SaveVisualsAsync()