`PrintQueue.AddJob`尚未完成

问题描述

我尝试在某些PC上遵循以下代码.

I tried following code on some PCs.

using (var lps = new LocalPrintServer())
using(var pqueue = lps.GetPrintQueue("PRINTER-NAME"))
{
    pqueue.AddJob("job-name", @"C:\example.xps", false, pticket);
}

仅在一台PC上，它不起作用.应用程序冻结在 AddJob 方法.即使等待了很长时间，它也从未完成.没有例外.

On only one PC, it did not work.The application froze at AddJob method.It never finished even after waiting for long time.There are no exceptions.

发生此问题的PC是Windows10，并应用了CreatorsUpdate.其他PC是应用了AnniversaryUpdate的Windows7，Windows8.1和Windows10.

The PC where this problem occurred is Windows10 and applied CreatorsUpdate.Other PCs are Windows7, Windows8.1 and Windows10 applied AnniversaryUpdate.

此问题是CreatorsUpdate的错误吗?

Is this problem a bug of CreatorsUpdate?

补充:
具有CreatorsUpdate的PC可以通过此代码打印xps文件.

Supplement:
The PC which has CreatorsUpdate can print xps file by this code.

using (var lps = new LocalPrintServer())
using(var pqueue = lps.GetPrintQueue("PRINTER-NAME"))
using (var doc = new XpsDocument(@"C:\example.xps", System.IO.FileAccess.Read))
{
    var writer = PrintQueue.CreateXpsDocumentWriter(pqueue);
    var docSeq = doc.GetFixedDocumentSequence();
    writer.Write(doc, pticket);
}

推荐答案

我确定目标打印机驱动程序不是基于XPS的.我对此有同样的问题.

I am sure that the target printer driver is not XPS based. I had the same problem with that.

您可以先通过以下方法检查打印机的兼容性:

You may first check the compatibility of the printer through:

LocalPrintServer server = new LocalPrintServer(PrintSystemDesiredAccess.AdministrateServer);
PrintQueue queue = server.GetPrintQueue("MyPrinterName");
MessageBox.Show(queue.IsXpsDevice.ToString());

如果结果为假，那就是原因.

If the result is false, then that's why.

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