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如何从Win32_PrintJob的打印作业中获取打印机名称？

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我可以通过使用WMI和 ManagementEventWatcher 从 Win32_PrintJob 获取打印作业信息，但我似乎无法找到打印机名称 . 我也查看了这个Win32_PrintJob文档，与打印机名称最接近的是 DriverName 属性，但它是打印机驱动程序名称，而不是控制面板的设备和打印机中显示的打印机名称 .

因此，如 Headers 中所述，如何从 Win32_PrintJob 获取打印作业的打印机名称？

这是我到目前为止获得打印作业的部分代码：

public void PrintHelperInstance_OnPrintJobChange(object sender, EventArrivedEventArgs e)
{
    ManagementBaseObject objProps = (ManagementBaseObject)e.NewEvent.Properties["TargetInstance"].Value;

    string jobName = objProps["Document"].ToString();

    if (jobName == "Test Print Form")
    {
        if (!IsFoundPrintJob)
        {
            IsFoundPrintJob = true;
        }

        CurrentJobStatus = (string)objProps["JobStatus"];

        if (CurrentJobStatus != PreviousJobStatus)
        {
            uint jobId = (uint)objProps["JobId"];
            string jobPrinter = (string)objProps["DriverName"];
            string jobHost = (string)objProps["HostPrintQueue"];
            string jobStatus = (string)objProps["JobStatus"];

            PreviousJobStatus = CurrentJobStatus;
        }
    }
}
c# printing wmi

1 回答

  • 1

    您可以使用此代码：

    // produce wmi query object
ObjectQuery query = new ObjectQuery("SELECT * FROM Win32_Printer);
// produce search object
ManagementObjectSearcher search = new ManagementObjectSearcher(quer);
// retrieve result collection
ManagementObjectCollection restul = search.Get();
// iterate through all printers 
foreach(ManagementObject obj in result)
{
    // now create your temp printer class
    Dictionary<string, object> printerObj = new Dictionary<string, object>();
    if(obj.GetPropertyValue("Local").ToString().Equals("true"))
    {
        printerObj.Add("isLocal", true);
        printerObj.Add("name", obj.GetPropertyValue("name").ToString());
    }
    else 
    {
        printerObj.Add("isLocal", false);
        printerObj.Add("serverName", obj.GetPropertyValue("ServerName").ToString());
        printerObj.Add("shareName", obj.GetPropertyValue("ShareName").ToString());
    }

    // create real printer object
    PrintServer srv = ((bool)printerObj["isLocal")) ? new LocalPrintServer() : new PrintServer((string)printerObj["serverName"]);
    PrintQueue queue = srv.GetPrintQueue(((bool)printerObj["isLocal")) ? (string)printerObj["name"] : (string)printerObj["shareName"];

    foreach(var job in queue.GetPrintJobInfoCollection())
    {
        // check job info and if it matches, return printer name;
    }
}
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