mail::account::getFolderKeywordInfo — Return message keywords
        
        
        #include <libmail/mail.H>
        
        
        mail::account *account;
| account->getFolderKeywordInfo( | size_t messageNum, | 
| std::set<std::string>
            &keywords ); | 
mail::account::getFolderKeywordInfo
      retrieves the current keywords for message #messagenum and places them into
      keywords (removing
      any existing contents). If the message does not have any
      keywords set, keywords will be an empty set.
      messageNum must be
      between zero and one less than the return code from mail::account::getFolderIndexSize(3x).