Returns the current value of this as a Variant of type g_variant_type_vardict, clearing it in the process.
It is not permissible to use this in any way after this call except for reference counting operations (
in the case of a heap-allocated VariantDict) or by reinitialising it with
g_variant_dict_init
(in the case of stack-allocated).
this |
a new, floating, Variant |