Create a MIME String
The MIME part is now complete and ready to use. To send the message over a network, convert the message into a MIME string using the asString() function, as shown:
 
RWMimeMultipart multipartMessage;
 
// ... fill message as described above
 
RWCString msgString;
 
try
{
msgString = multipartMessage.asString();
}
catch (const RWMimeError& msg)
{
// Handle the error
}
The asString() function doesn’t enforce a particular part style, or even guarantee that the part is correct MIME. The function does contain some safeguards that prevent a program from generating an unintelligible message. If the function cannot produce a structurally correct MIME message, the function throws RWMimeError.