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