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