internal static int DefaultDeviceOut()
{
int result = -1;
using (ObjectTokenCategory objectTokenCategory = ObjectTokenCategory.Create("HKEY_CURRENT_USER\\SOFTWARE\\Microsoft\\Speech\\AudioOutput"))
{
if (objectTokenCategory == null)
{
return(result);
}
string value;
if (!objectTokenCategory.TryGetString("DefaultTokenId", out value))
{
return(result);
}
int num = value.IndexOf('\\');
if (num <= 0)
{
return(result);
}
if (num < value.Length)
{
using (RegistryDataKey registryDataKey = RegistryDataKey.Create(value.Substring(num + 1), Registry.LocalMachine))
{
if (registryDataKey != null)
{
return(AudioDeviceOut.GetDevicedId(registryDataKey.Name));
}
return(result);
}
}
return(result);
}
}
private static ObjectToken DefaultToken(string category, string defaultTokenIdValueName)
{
ObjectToken objectToken = GetPreference(category, defaultTokenIdValueName);
if (objectToken != null)
{
using (ObjectTokenCategory objectTokenCategory = ObjectTokenCategory.Create(category))
{
if (objectTokenCategory == null)
{
return(objectToken);
}
if (objectToken != null)
{
foreach (ObjectToken item in (IEnumerable <ObjectToken>)objectTokenCategory)
{
objectToken = GetHighestTokenVersion(objectToken, item, asVersionDefault);
}
return(objectToken);
}
string[] sAttributes = new string[1]
{
string.Format(CultureInfo.InvariantCulture, "{0:x}", new object[1]
{
CultureInfo.CurrentUICulture.LCID
})
};
foreach (ObjectToken item2 in (IEnumerable <ObjectToken>)objectTokenCategory)
{
if (item2.MatchesAttributes(sAttributes))
{
objectToken = item2;
break;
}
}
if (objectToken == null)
{
using (IEnumerator <ObjectToken> enumerator3 = ((IEnumerable <ObjectToken>)objectTokenCategory).GetEnumerator())
{
if (enumerator3.MoveNext())
{
return(enumerator3.Current);
}
return(objectToken);
}
}
return(objectToken);
}
}
return(objectToken);
}
private static ObjectToken GetPreference(string category, string defaultLocation)
{
ObjectToken result = null;
using (ObjectTokenCategory objectTokenCategory = ObjectTokenCategory.Create(category))
{
if (objectTokenCategory == null)
{
return(result);
}
string value;
if (objectTokenCategory.TryGetString(defaultLocation, out value))
{
return(objectTokenCategory.OpenToken(value));
}
return(result);
}
}