namespace CoreText
{
    public class CTLine : INativeObject, IDisposable
    {
        public delegate void CaretEdgeEnumerator(double offset, nint charIndex, bool leadingEdge, ref bool stop);
        {
            public virtual IAsyncResult BeginInvoke(double offset, nint charIndex, bool leadingEdge, ref bool stop, AsyncCallback callback, object object);
        }
    }
}