/// <summary>
/// Helper function for retrieving a localized string resource via MUI.
/// The function expects a string in the form: "@resource.dll, -123"
///
/// "resource.dll" is a language-neutral portable executable (LNPE) file in
/// the %windir%\system32 directory. The OS is queried to find the best-fit
/// localized resource file for this LNPE (ex: %windir%\system32\en-us\resource.dll.mui).
/// If a localized resource file exists, we LoadString resource ID "123" and
/// return it to our caller.
/// </summary>
private static string TryGetLocalizedNameByMuiNativeResource(string resource)
{
if (string.IsNullOrEmpty(resource))
{
return(string.Empty);
}
// parse "@tzres.dll, -100"
//
// filePath = "C:\Windows\System32\tzres.dll"
// resourceId = -100
//
string[] resources = resource.Split(',');
if (resources.Length != 2)
{
return(string.Empty);
}
string filePath;
int resourceId;
// get the path to Windows\System32
string system32 = Environment.UnsafeGetFolderPath(Environment.SpecialFolder.System);
// trim the string "@tzres.dll" => "tzres.dll"
string tzresDll = resources[0].TrimStart('@');
try
{
filePath = Path.Combine(system32, tzresDll);
}
catch (ArgumentException)
{
// there were probably illegal characters in the path
return(string.Empty);
}
if (!int.TryParse(resources[1], NumberStyles.Integer, CultureInfo.InvariantCulture, out resourceId))
{
return(string.Empty);
}
resourceId = -resourceId;
try
{
StringBuilder fileMuiPath = StringBuilderCache.Acquire(Path.MaxPath);
fileMuiPath.Length = Path.MaxPath;
int fileMuiPathLength = Path.MaxPath;
int languageLength = 0;
long enumerator = 0;
bool succeeded = UnsafeNativeMethods.GetFileMUIPath(
Win32Native.MUI_PREFERRED_UI_LANGUAGES,
filePath, null /* language */, ref languageLength,
fileMuiPath, ref fileMuiPathLength, ref enumerator);
if (!succeeded)
{
StringBuilderCache.Release(fileMuiPath);
return(string.Empty);
}
return(TryGetLocalizedNameByNativeResource(StringBuilderCache.GetStringAndRelease(fileMuiPath), resourceId));
}
catch (EntryPointNotFoundException)
{
return(string.Empty);
}
}