NeoFT/Win32Util/RegistryHelper.cs

using System;
using Microsoft.Win32;

namespace nft.win32util
{
        /// <summary>
        /// RegistryHelper ĚTvĚŕžĹˇB
        /// </summary>
        public class RegistryHelper
        {
                private RegistryHelper()
                {
                }

                // Read data string of specified key and value from system registry.
                public static string ReadKey(string key,string valname)
                {
                        int n = key.IndexOf('\\');
                        string baseKey = key.Substring(5,n-5);
                        string subKey = key.Substring(n+1);
                        RegistryKey rKey;
                        switch(baseKey)
                        {
                                case "CLASSES_ROOT":
                                        rKey = Registry.ClassesRoot;
                                        break;
                                case "LOCAL_MACHINE":
                                        rKey = Registry.LocalMachine;
                                        break;
                                case "CURRENT_USER":
                                        rKey = Registry.CurrentUser;
                                        break;
                                case "CURRENT_CONFIG":
                                        rKey = Registry.CurrentConfig;
                                        break;
                                default:
                                        return null;
                        }
                        if(valname==null)
                                valname="";
                        object o = rKey.OpenSubKey(subKey,false).GetValue(valname);
                        if(o==null)
                                return null;
                        else
                                return o.ToString();
                }
        }
}