Sets our main struct and passes it to the parent class.
Get the main Gtk struct
the main Gtk struct as a void*
Gets the current value that @iter points to.
Checks if @iter points to a valid value.
Moves @iter to the next value in the set.
Moves @iter to the previous value in the set.
Initializes @iter to point to @target.
Initializes an iterator for @set and points it to the first value in @set.
Initializes an iterator for @set and points it to the last value in @set.
the main Gtk struct
An opaque, stack-allocated struct for iterating over the elements of a GtkBitset.
Before a GtkBitsetIter can be used, it needs to be initialized with [func@Gtk.BitsetIter.init_first], [func@Gtk.BitsetIter.init_last] or [func@Gtk.BitsetIter.init_at].