virtual PlayState GetPlayState() const = 0;
GetPlayState obtains the play state of the movie clip, currently either Playing or Stopped. Setting the state to Stopped will prevent Advance from advancing movie frames in this clip, but not necessarily its children.
If you absolutely need to pause the entire movie clip with its children, you should stop calling Advance instead of relying on this function.
A PlayState value describing the current play state of the movie clip instance.