Microsoft.Win32.Win32RegistryApi.GetValue C# (CSharp) Méthode

		public object GetValue (RegistryKey rkey, string name, object defaultValue, RegistryValueOptions options)
		{
			RegistryValueKind type = 0;
			int size = 0;
			object obj = null;
			IntPtr handle = GetHandle (rkey);
			int result = RegQueryValueEx (handle, name, IntPtr.Zero, ref type, IntPtr.Zero, ref size);

			if (result == Win32ResultCode.FileNotFound || result == Win32ResultCode.MarkedForDeletion) {
				return defaultValue;
			}
			
			if (result != Win32ResultCode.MoreData && result != Win32ResultCode.Success ) {
				GenerateException (result);
			}
			
			if (type == RegistryValueKind.String) {
				byte[] data;
				result = GetBinaryValue (rkey, name, type, out data, size);
				obj = RegistryKey.DecodeString (data);
			} else if (type == RegistryValueKind.ExpandString) {
				byte [] data;
				result = GetBinaryValue (rkey, name, type, out data, size);
				obj = RegistryKey.DecodeString (data);
				if ((options & RegistryValueOptions.DoNotExpandEnvironmentNames) == 0)
					obj = Environment.ExpandEnvironmentVariables ((string) obj);
			} else if (type == RegistryValueKind.DWord) {
				int data = 0;
				result = RegQueryValueEx (handle, name, IntPtr.Zero, ref type, ref data, ref size);
				obj = data;
			} else if (type == RegistryValueKind.Binary) {
				byte[] data;
				result = GetBinaryValue (rkey, name, type, out data, size);
				obj = data;
			} else if (type == RegistryValueKind.MultiString) {
				obj = null;
				byte[] data;
				result = GetBinaryValue (rkey, name, type, out data, size);
				
				if (result == Win32ResultCode.Success)
					obj = RegistryKey.DecodeString (data).Split ('\0');
			} else {
				// should never get here
				throw new SystemException ();
			}

			// check result codes again:
			if (result != Win32ResultCode.Success)
			{
				GenerateException (result);
			}
			

			return obj;
		}