WPF中如何不使用打印对话框直接打印？

Question

我只是想知道如何在 WPF 中打印流程文档而不显示打印对话框。

感谢您的帮助...

Answer 1

您可以使用 PrintDialog 类而不显示对话框（无需调用 ShowModal）

Answer 2

这是更改默认打印机或更改其他设置的方法之一：

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);

Answer 3

尝试

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