C#获取打印机列表，设置为默认打印机

引言

需要引入
System.Drawing.Printing
System.Management

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实现

1.获取打印机列表
2.获取默认打印机
3.设置默认打印机

上代码

public class PrinterExample
    {
        /// 

        /// 设置默认打印机
        /// 
        /// 
        /// 
        [DllImport("winspool.drv")]
        public static extern bool SetDefaultPrinter(String Name); //调用win api将指定名称的打印机设置为默认打印机

        /// 

        /// 获取默认打印机
        /// 
        /// 
        public static string GetDefaultPrinter()
        {
            PrintDocument print = new PrintDocument();
            string defaultName = print.PrinterSettings.PrinterName;//默认打印机名
            return defaultName;
        }

        /// 

        /// 获取本地所有打印机
        /// 
        /// 
        public static List GetLocalPrinters()
        {
            List printer_names = new List();
           
            foreach (String item in PrinterSettings.InstalledPrinters)
            {
                printer_names.Add(item);

            }
            return printer_names;
        }

        /// 

        /// 获取本地所有打印机 System.Management方式获取
        /// 
        /// 
        public static List GetLocalPrinters2()
        {
            List printer_names = new List();

            ManagementObjectCollection queryCollection;
            string _classname = "SELECT * FROM Win32_Printer";

            Dictionary dict = new Dictionary();
            ManagementObjectSearcher query = new ManagementObjectSearcher(_classname);
            queryCollection = query.Get();

            foreach (ManagementObject mo in queryCollection)
            {
                string oldName = mo["Name"].ToString();
                printer_names.Add(oldName);


            }
            return printer_names;


        }



    }

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