getCount method
Implementation
int getCount(Pointer<Uint32> pcDevices) => (ptr.ref.vtable + 3)
.cast<
Pointer<
NativeFunction<
Int32 Function(Pointer, Pointer<Uint32> pcDevices)>>>()
.value
.asFunction<int Function(Pointer, Pointer<Uint32> pcDevices)>()(
ptr.ref.lpVtbl, pcDevices);