OpenCvSharp.NativeMethods.core_FileNode_read_String C# (CSharp) Method

        public static extern void core_FileNode_read_String(
            IntPtr node, [MarshalAs(UnmanagedType.LPStr)] StringBuilder value, int valueCapacity,
            [MarshalAs(UnmanagedType.LPStr)] string defaultValue);
        [DllImport(DllExtern, CallingConvention = CallingConvention.Cdecl)]

        /// <summary>
        ///
        /// </summary>
        /// <param name="defaultValue"></param>
        /// <returns></returns>
        public string ReadString(string defaultValue = default(string))
        {
            var value = new StringBuilder(65536);

            NativeMethods.core_FileNode_read_String(ptr, value, value.Capacity, defaultValue);
            return(value.ToString());
        }