/// <summary>Shutdown the tracker so that no further capture can be added to the input queue.</summary>
/// <remarks><para>
/// Once the tracker is shutdown, <see cref="TryEnqueueCapture(Capture, Timeout)"/> method will always immediately return failure.
/// </para><para>
/// If there are remaining captures in the tracker queue after the tracker is shutdown, <see cref="TryPopResult(out BodyFrame, Timeout)"/> can
/// still return successfully. Once the tracker queue is empty, the <see cref="TryPopResult(out BodyFrame, Timeout)"/> call will always immediately
/// return failure.
/// </para><para>
/// This function may be called while another thread is blocking in <see cref="TryEnqueueCapture(Capture, Timeout)"/> or <see cref="TryPopResult(out BodyFrame, Timeout)"/>.
/// Calling this function while another thread is in that function will result in that function raising an exception.
/// </para></remarks>
public void Shutdown()
{
NativeApi.TrackerShutdown(handle.Value);
queueSize = 0;
}