A string format describing how to collect the contents of this value bit-by-bit. Each character in the format represents an argument to be collected, and the characters themselves indicate the type of the argument. Currently supported arguments are:
Format description of the arguments to collect for lcopy_value,
analogous to collect_format
. Usually, lcopy_format
string consists
only of 'p's to provide lcopy_value() with pointers to storage locations.
The #GTypeValueTable provides the functions required by the #GValue implementation, to serve as a container for values of a type.