removeAt method
Removes the item at the specified index in the vector.
Implementation
void removeAt(int index) {
final hr = ptr.ref.vtable
.elementAt(12)
.cast<Pointer<NativeFunction<HRESULT Function(Pointer, Uint32)>>>()
.value
.asFunction<int Function(Pointer, int)>()(ptr.ref.lpVtbl, index);
if (FAILED(hr)) throw WindowsException(hr);
}