获取最近被推送到打印机的“打印作业状态”

Question

我试图获取最近使用c＃推送到打印机队列的打印作业状态。我可以看到PrintJobInfoCollection类检查Printer spool文件夹中存在的所有打印作业的状态。

例如，在上午10点有一个工作标识符“ 17”，在上午10.15有一个另一个工作标识符“ 18”。我希望有一个代码可以单独检查标识符18的工作状态。

我现在正在使用下面的代码检查打印作业的状态。

private void GetJobStatus()
        {
            string jobStatus = string.Empty;
            try
            {
                PrintQueue PDFprinterQueue = printServerJob.GetPrintQueue(_selectedPrinter);
                PrintJobInfoCollection pjc = PDFprinterQueue.GetPrintJobInfoCollection();
                foreach (var job in pjc)
                {
                    switch (job.JobStatus)
                    {
                        case PrintJobStatus.Paused:
                            jobStatus = "JOB_STATUS_PAUSED";
                            break;
                        case PrintJobStatus.Error:
                            jobStatus = "JOB_STATUS_ERROR";
                            break;
                        case PrintJobStatus.Deleting:
                            jobStatus = "JOB_STATUS_DELETING";
                            break;
                        case PrintJobStatus.Spooling:
                            jobStatus = "JOB_STATUS_SPOOLING";
                            break;
                        case PrintJobStatus.Printing:
                            jobStatus = "JOB_STATUS_PRINTING";
                            break;
                        case PrintJobStatus.Offline:
                            jobStatus = "JOB_STATUS_OFFLINE";
                            break;
                        case PrintJobStatus.PaperOut:
                            jobStatus = "JOB_STATUS_PAPEROUT";
                            break;
                        case PrintJobStatus.Printed:
                            jobStatus = "JOB_STATUS_PRINTED";
                            break;
                        case PrintJobStatus.Deleted:
                            jobStatus = "JOB_STATUS_DELETED";
                            break;
                        case PrintJobStatus.Blocked:
                            jobStatus = "JOB_STATUS_BLOCKED";
                            break;
                        case PrintJobStatus.UserIntervention:
                            jobStatus = "JOB_STATUS_USERINTERVENTION";
                            break;
                        case PrintJobStatus.Restarted:
                            jobStatus = "JOB_STATUS_RESTARTED";
                            break;
                        case PrintJobStatus.Completed:
                            jobStatus = "JOB_STATUS_COMPLETED";
                            break;
                        case PrintJobStatus.Retained:
                            jobStatus = "JOB_STATUS_RETAINED";
                            break;
                    }
                    if (string.IsNullOrEmpty(jobStatus))
                    {
                        // Assuming everything is good:-)
                        jobStatus = "GOOD";
                    }
                }
            }
            catch (InvalidPrinterException invptrexp)
            {
                jobStatus = "JOB_STATUS_ERROR";
            }
            finally
            {
                if (printServer != null) printServer.Dispose();
            }
        }

任何建议都会很有帮助。 预先感谢。