如何在WPF中没有打印对话框的情况下直接打印？

Question

我只想知道如何在不显示WPF中的打印对话框的情况下打印流文档。

感谢您的帮助......

Answer 1

您可以使用PrintDialog类类，而不显示对话框（不调用的ShowModal）

Answer 2

尝试

PrintDialog dialog = new PrintDialog(); 
dialog.PrintVisual(_PrintCanvas, "My Canvas"); 

Answer 3

这是可以改变的途径之一默认打印机或更改其他设置：

using System.Printing; //add reference to System.Printing Assembly 
         //if you want to modify PrintTicket, also add 
         //reference to ReachFramework.dll (part of .net install) 
... 

var dlg = new PrintDialog(); 

dlg.PrintQueue = printer; // this will be your printer. any of these: new PrintServer().GetPrintQueues() 
dlg.PrintTicket.CopyCount = 3; // number of copies 
dlg.PrintTicket.PageOrientation = PageOrientation.Landscape; 

dlg.PrintVisual(canvas);