Parses the variable arguments and reads fields from this accordingly.
Variable arguments should be in the form field id quark, field type (as a GType), pointer(s) to a variable(s) to hold the return value(s). The
last variable argument should be
null (technically it should be a 0 quark, but we require
null so compilers that
support it can check for the
null terminator and warn if it's not there).
This function is just like @get only that it is slightly more efficient since it saves the string-to-quark lookup in the global quark hashtable.
For refcounted (mini)objects you will receive a new reference which you must release with a suitable _unref\() when no longer needed. For strings and boxed types you will receive a copy which you will need to release with either g_free or the suitable function for the boxed type.
the quark of the first field to read