getVolume method
Implementation
int getVolume(Pointer<Uint16> pusVolume) =>
(ptr.ref.vtable + 31)
.cast<
Pointer<
NativeFunction<Int32 Function(Pointer, Pointer<Uint16> pusVolume)>
>
>()
.value
.asFunction<int Function(Pointer, Pointer<Uint16> pusVolume)>()(
ptr.ref.lpVtbl,
pusVolume,
);