Advances iter and retrieves the key and/or value that are now pointed to as a result of this advancement. If FALSE is returned, key and value are not set, and the iterator becomes invalid. Since 2.16
a location to store the key, or NULL. [allow-none]
a location to store the value, or NULL. [allow-none]
FALSE if the end of the GHashTable has been reached.
See Implementation
Advances iter and retrieves the key and/or value that are now pointed to as a result of this advancement. If FALSE is returned, key and value are not set, and the iterator becomes invalid. Since 2.16