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