调用特定打印机来打印 C# WPF
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Invoke a specific printer to print C# WPF
提问by Kashif R
I want to call a specific printer to print in my WPF application. I have three printer Suppose Printer1 for Bar bill Print Printer2 for Kitchen bill Print Printer3 for Guest bill Print printers name already saved in database, while printing I get a printer name from DB and want to print from specific printer, not defaul printer Here is my code
我想调用特定的打印机在我的 WPF 应用程序中打印。我有三台打印机假设打印机1用于酒吧账单打印打印机2用于厨房账单打印打印机3用于客人账单打印打印机名称已保存在数据库中，打印时我从数据库获取打印机名称并想从特定打印机打印，而不是默认打印机这是我的代码
var v = new PrinterDAL().GetPrinterSettings();
try
{
System.Threading.Thread thread = new System.Threading.Thread(new
System.Threading.ThreadStart(
delegate()
{
gridPrint.Dispatcher.Invoke(DispatcherPriority.Normal,
new Action(
delegate()
{
PrintDialog printDialog = new PrintDialog();
printDialog.PrintQueue = new PrintQueue(
new PrintServer(@"\" + v.BarPrinter), "");
printDialog.PrintVisual(gridPrint, "");
this.Close();
}
));
}
));
thread.Start();
}
catch (Exception ex)
{
Xceed.Wpf.Toolkit.MessageBox.Show(ex.Message, "", MessageBoxButton.OK,
MessageBoxImage.Error);
}
I get an exception from this code
我从这段代码中得到一个例外
"An exception occurred while creating the PrintServer object. Win32 error: The printer name is invalid."
“创建 PrintServer 对象时发生异常。Win32 错误：打印机名称无效。”
回答by jlvaquero
PrintServer must be instance using a computer or printer server device in UNC format (\\resource) not a printer name:
PrintServer 必须是使用 UNC 格式 ( \\resource) 而不是打印机名称的计算机或打印机服务器设备的实例：
For example, if the name of your computer, in your domain, is KashifPC and you have configured a printer, called "Printer1", you can use:
例如，如果您的计算机在您的域中的名称是 KashifPC 并且您配置了一台名为“Printer1”的打印机，您可以使用：
//example code. no error handling.
PrintServer localPS = New PrintServer(@"\KashifPC")
PrinterQueue printer1 = localPS.GetPrintQueue("Printer1") //v.BarPrinter???
PrintDialog printDialog = new PrintDialog();
printDialog.PrintQueue = printer1
//rest of code
