[Mime] mimeDecode(Char() nextchar, Bool() finalchar, Int maxlen, String boundary, String tmppath="")
nextchar: A function to return the next binary character from the data source
maxlen: The maximum amount of data to read from the file handle
boundary: The MIME boundary string
tmppath: The path to store
MimeFiletemporary files. Defaults to the current directory if unspecified.
Decodes a Mime-encoded file. This function is mainly a utility function for WebCommon::initWebApp and has little general use.