format or null if no addresses are contained in the list.
InternetAddressList.toString_
string toString_(gmime.format_options.FormatOptions options, bool encode)Allocates a string buffer containing the rfc822 formatted addresses in list.
Parameters
options | a #GMimeFormatOptions or null |
encode | true if the address should be rfc2047 encoded |
Returns
a string containing the list of addresses in rfc822