C#修改系统默认打印机

转自：http://zhidao.baidu.com/link?url=-LtSl1N4OBt3Q3C9XPHvA6TDs8lSazEfdZxxiJZ1rOTwpz6otAZ4oolVhsi0CCDlMLdF1VsLZO6TgusNs_0miq

实例化winspool.drv对象，然后调用SetDefaultPrinter方法来设置默认打印机
[DllImport("winspool.drv", CharSet = CharSet.Auto, SetLastError = true)]
private static extern long SetDefaultPrinter(string pszPrinter);

追问

using System.ComponentModel;
using System.Drawing;
using System.Runtime.InteropServices;
{
public partial class Form1 : Form
{public Form1()
{ InitializeComponent(); }
[DllImport("winspool.drv")]
public static extern bool SetDefaultPrinter(string Name);
private void button1_Click(object sender, EventArgs e) {SetDefaultPrinter("My Microsoft XPS Document Writer");}}

c# 设置默认打印机

using System;

using System.Management;             //需要引用System.Management

public class Sample

{

     public static void Main(string[] args)

     {

         string PrinterName = "Adobe PDF";

         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;

             }

         }

         foreach (ManagementObject mo in queryCollection)

         {

                 Console.WriteLine(mo["Name"].ToString());

         }

        Console.ReadLine();

     }

}

转自：http://hi.baidu.com/jackeyrain/item/5ddf777065edb946ee1e53c4