设置默认打印机

using System.Management;

string PrinterName = "HP LaserJet 6L";

ManagementObjectSearcher query;

ManagementObjectCollection queryCollection;

string _classname="SELECT * FROM Win32_Printer";

query=new ManagementObjectSearcher(_classname);

queryCollection = query.Get();

foreach (ManagementObject mo in queryCollection)

{

if (string.Compare(mo["Name"].ToString(),PrinterName,true)==0)

{

mo.InvokeMethod("SetDefaultPrinter",null);

break;

}

}