C:如何使用Winspool_DRV监控打印作业

我不知道winspool.drv,但是你可以使用wmi来获取打印机的状态。下面是一个使用 Win32_Printer .

PrintDialog pd = new PrintDialog();
pd.ShowDialog();
PrintDoc.PrinterSettings = pd.PrinterSettings;
PrintDoc.PrintPage += new PrintPageEventHandler(PrintDoc_PrintPage);
PrintDoc.Print();

object status = Convert.ToUInt32(9999);
while ((uint)status != 0) // 0 being idle
{
    ManagementObjectSearcher mos = new ManagementObjectSearcher("select * from Win32_Printer where Name='" + pd.PrinterSettings.PrinterName + "'");
    foreach (ManagementObject service in mos.Get())
    {
    status = service.Properties["PrinterState"].Value;
    Thread.Sleep(50);
    }
}

如果不使用printDialog对象(选择打印机),可以运行wmi查询,它将返回系统中的所有打印机。