获取设置本地当前默认打印机

注意要引用System.Management.dll (.net组件下)

/// <summary>
        /// 获取本地当前默认打印机
        /// </summary>
        /// <returns></returns>
        public static string GetDefaultPrinter()
        {
            ManagementObjectSearcher searcher = new 
                ManagementObjectSearcher("select * from Win32_Printer");

            string DefaultPrinter="";
            foreach (ManagementObject Printer in searcher.Get()) 
            {
                if (bool.Parse(Printer["Default"].ToString()))
                {
                    DefaultPrinter=Printer["Name"].ToString();
                    break;
                }
            }
            return DefaultPrinter;
        }

        /// <summary>
        /// 设置本地当前默认打印机
        /// </summary>
        /// <returns></returns>
        public static void SetDefaultPrinter(string PrinterName)
        {
            ManagementObjectSearcher searcher = new 
                ManagementObjectSearcher("select * from Win32_Printer");

            foreach (ManagementObject Printer in searcher.Get()) 
            {
                if (string.Compare(Printer["Name"].ToString(),PrinterName,true)==0)
                {
                    Printer.InvokeMethod("SetDefaultPrinter",null);
                    break;
                }
            }

        }