如何在WPF C＃中为FlowDocument选择打印机

Question

I am trying to print a FlowDocument directly to a pdf using Microsoft Print to pdf. Each time I want to print it sets the printer to the last printer that was used, I need it to set to "Microsoft Print to PDF".

// Create a PrintDialog 
PrintDialog printDlg = new PrintDialog();
// Create a FlowDocument dynamically. 
FlowDocument doc = CreateFlowDocument();
doc.Name = "OrderReceipt"+orderNo;
// Create IDocumentPaginatorSource from FlowDocument 
IDocumentPaginatorSource idpSource = doc;
// Call PrintDocument method to send document to printer 
printDlg.PrintDocument(idpSource.DocumentPaginator, "Save PDF");

Is this possible?

Answer 1

您可能正在使用默认打印机设置，可以将其设置为最后使用的打印机： https : //support.microsoft.com/zh-cn/help/4028622/windows-10-how-to-set-a-default -打印机

Answer 2

Have you tried calling PrintDialog.ShowDialog()? It pops up the printer options and lets you select which printer to send to and set preferences.

// Create IDocumentPaginatorSource from FlowDocument 
IDocumentPaginatorSource idpSource = doc;
// Display printer options
if( printDlg.ShowDialog() ?? false )
{
   // Call PrintDocument method to send document to printer 
   printDlg.PrintDocument(idpSource.DocumentPaginator, "Save PDF");
}