wpf读写注册表

WPF，C# 里 读写注册表的代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using Microsoft.Win32;
namespace FTMedDicomScpServer
{
    /// <summary>
    /// 注册表参数读取的单例类
    /// </summary>
    public class ParameterSingleFactory
    {
        private static ParameterSingleFactory parameterInstance = null;
        private static readonly object lockHelper = new object();

        private ParameterSingleFactory()
        {
            GetParametersFromReg();
        }
        public void GetParametersFromReg()
        {
            RegistryKey rkey = Registry.LocalMachine;

            RegistryKey rkey1 = rkey.OpenSubKey("SOFTWARE\WOW6432Node", true);
            if (rkey1==null)
                rkey1 = rkey.OpenSubKey("SOFTWARE", true);
            if (rkey1 != null)
            {
                RegistryKey rkey2 = rkey1.OpenSubKey("FTMedDicomScpServer", true);
                RegistryKey rkey3;
                if (rkey2 == null)
                {
                    try
                    {
                        rkey2 = rkey1.CreateSubKey("FTMedDicomScpServer");
                        rkey3 = rkey2.CreateSubKey("FTMedDicomScpService");
                        rkey3.SetValue("DicomScpAE", DicomScpAE);
                        rkey3.SetValue("DicomScpPort", DicomScpPort);
                        rkey3.SetValue("DicomScpIp", DicomScpIP);
                        rkey3.SetValue("DicomScpSavePath", DicomScpPath);
                        rkey2.Close();
                    }
                    catch (Exception e)
                    {
                       
                    }
                }
                else
                {
                    rkey3 = rkey2.OpenSubKey("FTMedDicomScpService", true);
                    if (rkey3 == null)
                    {
                        try
                        {
                            rkey3 = rkey2.CreateSubKey("FTMedDicomScpService");
                            rkey3.SetValue("DicomScpAE", DicomScpAE);
                            rkey3.SetValue("DicomScpPort", DicomScpPort);
                            rkey3.SetValue("DicomScpIp", DicomScpIP);
                            rkey3.SetValue("DicomScpSavePath", DicomScpPath);
                            rkey3.Close();
                        }
                        catch (Exception e)
                        {

                        }
                        
                    }
                    else
                    {
                        if (rkey3.GetValue("DicomScpAE") == null){
                            rkey3.SetValue("DicomScpAE", "SCPserver");}
                        else{
                            this.m_strDicomScpAE = rkey3.GetValue("DicomScpAE").ToString();}

                        if (rkey3.GetValue("DicomScpPort") == null){
                            rkey3.SetValue("DicomScpPort", "3333");}
                        else{
                            this.m_strDicomScpPort = rkey3.GetValue("DicomScpPort").ToString(); }

                        if (rkey3.GetValue("DicomScpIp") == null){
                            rkey3.SetValue("DicomScpIp", "localhost");}
                        else{
                            this.m_strDicomScpIP = rkey3.GetValue("DicomScpIp").ToString();}

                        if (rkey3.GetValue("DicomScpSavePath")== null) {
                            rkey3.SetValue("DicomScpSavePath", "D:\storeSCP");}
                        else {
                            this.m_strDicomScpPath = rkey3.GetValue("DicomScpSavePath").ToString();}

                        rkey3.Close();
                    }
                    rkey2.Close();
                }
            }
            rkey1.Close(); 
        }

        public void SetParametersToReg()
        {
            RegistryKey rkey = Registry.LocalMachine;
            RegistryKey rkey1 = rkey.OpenSubKey("SOFTWARE\WOW6432Node", true);
            if (rkey1 == null)
                rkey1 = rkey.OpenSubKey("SOFTWARE", true);
            RegistryKey rkey2 = rkey1.CreateSubKey("FTMedDicomScpServer");
            RegistryKey rkey3 = rkey2.CreateSubKey("FTMedDicomScpService");

            rkey3.SetValue("DicomScpAE", this.m_strDicomScpAE);
            rkey3.SetValue("DicomScpPort", this.m_strDicomScpPort);
            rkey3.SetValue("DicomScpIp", this.m_strDicomScpIP);
            rkey3.SetValue("DicomScpSavePath", this.m_strDicomScpPath);
            rkey3.Close();
            rkey2.Close();
            rkey1.Close(); 
        }
        public void SetParamToReg(string serviceName, string key,string value)
        {
            RegistryKey rkey = Registry.LocalMachine;
            RegistryKey rkey1 = rkey.OpenSubKey("SOFTWARE\WOW6432Node", true);
            if (rkey1 == null)
                rkey1 = rkey.OpenSubKey("SOFTWARE", true);
            RegistryKey rkey2 = rkey1.OpenSubKey("FTMedDicomScpServer\" + serviceName, true);

            if (rkey2 == null)
            {
                RegistryKey rkey3 = rkey.OpenSubKey("FTMedDicomScpService", true);
                if (rkey3 == null)
                {
                    rkey3 = rkey1.CreateSubKey("FTMedDicomScpServer");
                }
                rkey2 = rkey3.CreateSubKey(serviceName);
                rkey3.Close();
            }
            rkey2.SetValue(key,value);
            rkey2.Close();
            rkey1.Close();
            rkey.Close();
        }
         public string GetParamFromReg(string serviceName,string key)
        {
            string value = null;

            RegistryKey rkey = Registry.LocalMachine;
            //The   second   parameter   tells   it   to   open   the   key   as   writable 
            RegistryKey rkey1 = rkey.OpenSubKey("SOFTWARE\FTMedDicomScpServer\" + serviceName, true);

            if (rkey1 == null)
            {
                rkey1 = rkey.OpenSubKey("SOFTWARE\WOW6432Node\FTMedDicomScpServer\" + serviceName, true);
            }
            if (rkey1 != null)
            {
                value = (string)(rkey1.GetValue(key, "0"));
            }
            else return value;

            rkey1.Close();
            return value;
        }
    

        public static ParameterSingleFactory CreateInstance()
        {
            if (parameterInstance == null)
            {
                lock (lockHelper)
                {
                    if (parameterInstance == null)
                        parameterInstance = new ParameterSingleFactory();
                }
            }
            return parameterInstance;
        }

        private string m_strDicomScpAE;
        private string m_strDicomScpPort;
        private string m_strDicomScpIP;
        private string m_strDicomScpPath;

        public string DicomScpAE
        {
            get { return this.m_strDicomScpAE; }
            set { this.m_strDicomScpAE = value; }
        }

        public string DicomScpPort
        {
            get { return this.m_strDicomScpPort; }
            set { this.m_strDicomScpPort = value; }
        }

        public string DicomScpIP
        {
            get { return this.m_strDicomScpIP; }
            set { this.m_strDicomScpIP = value; }
        }

        public string DicomScpPath
        {
            get { return this.m_strDicomScpPath; }
            set { this.m_strDicomScpPath = value; }
        }
    }
}