RtlpIsALicensedRegularLanguage

NTSTATUS __stdcall RtlpIsALicensedRegularLanguage(_MUIREGISTRYINFO *RegInfo, WCHAR *LangName){
  NTSTATUS v2; 
  WCHAR *v5; 
  WCHAR *v6; 
  WCHAR *v7; 
  int v9; 

  v2 = 0;
  if( RegInfo )
  {
    v5 = (WCHAR *)*((_QWORD *)RegInfo + 17);
    if( !v5 || RtlpLangNameInMultiSzString(v5, LangName) )
    {
      v6 = (WCHAR *)*((_QWORD *)RegInfo + 16);
      if( v6 )
      {
        v9 = -(RtlpLangNameInMultiSzString(v6, LangName) == 0);
      }
      else
      {
        v7 = (WCHAR *)*((_QWORD *)RegInfo + 19);
        if( !v7 )
          return v2;
        v9 = -(RtlpLangNameInMultiSzString(v7, LangName) != 0);
      }
      return v9 & 0xC0000034;
    }
    return -1073741772;
  }
  return -1073741772;
}

Referenced by:

RtlpMuiRegAddLanguageByName
RtlpMuiRegValidateInstalled