private static RegistryKey GetRootKey(RegistryRootKey rootKey)
{
switch (rootKey)
{
case RegistryRootKey.Classes:
return(Registry.ClassesRoot);
case RegistryRootKey.CurrentUser:
return(Registry.CurrentUser);
case RegistryRootKey.LocalMachine:
return(Registry.LocalMachine);
case RegistryRootKey.Users:
return(Registry.Users);
case RegistryRootKey.CurrentConfig:
return(Registry.CurrentConfig);
case RegistryRootKey.PerformanceData:
return(Registry.PerformanceData);
default:
throw new ArgumentOutOfRangeException(nameof(rootKey), rootKey,
"Unsupported root key");
}
}
private static object GetValue(RegistryRootKey rootKey,
[NotNull] string path,
[NotNull] string name)
{
RegistryKey rootRegKey = GetRootKey(rootKey);
return(GetValue(rootRegKey, path, name));
}
public static int?GetInt32(RegistryRootKey rootKey,
[NotNull] string path,
[NotNull] string name)
{
object value = GetValue(rootKey, path, name);
return(value == null
? (int?)null
: Convert.ToInt32(value));
}
public static string GetString(RegistryRootKey rootKey,
[NotNull] string path,
[NotNull] string name)
{
object value = GetValue(rootKey, path, name);
return(value == null
? null
: Convert.ToString(value));
}