C# 获取打印机列表，C# 设置打印机属性，C# 保留打印的文档

1，获取打印机列表：

public void SetPrinters()
{
      ManagementScope ms = new ManagementScope(ManagementPath.DefaultPath);
      ms.Connect();
      SelectQuery sq = new SelectQuery
      {
           QueryString = @"SELECT Name FROM Win32_Printer"
      };
      ManagementObjectSearcher mos =new ManagementObjectSearcher(ms, sq);
      ManagementObjectCollection oObjectCollection = mos.Get();
      foreach (ManagementObject mo in oObjectCollection)
      {
          string printer=mo["Name"].ToString();
          .....      
      }
}

2，设置打印机属性

官方说明：

https://docs.microsoft.com/en-us/powershell/module/printmanagement/set-printer

Set-Printer -Name "Microsoft XPS Document Writer" -KeepPrintedJobs $True

$Printer = Get-Printer -Name "Microsoft XPS Document Writer"
$Printer.KeepPrintedJobs = $True
Set-Printer -InputObject $Printer

3，执行powershell命令，参考 C# 调用powershell，C#执行powershell语句，C# 使用Runspace执行powershell命令 (spidersharp.com)