Hi VMime users!

Let’s focus today on a new feature in VMime 0.9. Until now, when you wanted to “explore” the contents of a vmime::net::message (that is, a message hosted on a IMAP or a POP3 store), you had to extract it entirely, or to use low-level fetch() and extract() functions on the message object.

Since the current development release of May 18th, there is a new helper function that will let you access the remote message like a “normal” vmime::message, and actually download the message data only when it is required (this only works for IMAP).

// Connect to the IMAP store
vmime::ref <vmime::net::session> sess = vmime::net::session::create();

vmime::utility::url storeURL("imap://username:password@imap.example.com");

vmime::ref <vmime::net::store> store = sess->getStore(storeURL);
store->connect();

// Open the INBOX
vmime::ref <vmime::net::folder> folder = store->getDefaultFolder();
folder->open(vmime::net::folder::MODE_READ_WRITE);

// Get the first message in the INBOX
vmime::ref <vmime::net::message> msg = f->getMessage(1);

// Construct the parsed message (a few data, header and structure,
// is actually downloaded from the IMAP server)
vmime::ref <vmime::message> parsedMsg = msg->getParsedMessage();

// Here, extract() will actually download message data from the server
vmime::utility::outputStreamAdapter out(std::cout);
parsedMsg->getBody()->extract(out);

That’s all folks! Update your source tree to the latest SVN head to enjoy this new feature.