moveNext method
Implementation
int moveNext(Pointer<Int32> hasNext) => (ptr.ref.vtable + 5)
.cast<
Pointer<
NativeFunction<
Int32 Function(Pointer, Pointer<Int32> hasNext)>>>()
.value
.asFunction<int Function(Pointer, Pointer<Int32> hasNext)>()(
ptr.ref.lpVtbl, hasNext);