getCount method
Implementation
int getCount(Pointer<Uint32> pdwNumItems) => ptr.ref.vtable
.elementAt(7)
.cast<
Pointer<
NativeFunction<
Int32 Function(Pointer, Pointer<Uint32> pdwNumItems)>>>()
.value
.asFunction<int Function(Pointer, Pointer<Uint32> pdwNumItems)>()(
ptr.ref.lpVtbl, pdwNumItems);