/// <summary>
        ///
        /// </summary>
        /// <param name="value"></param>
        /// <param name="targetType"></param>
        /// <param name="parameter">Must be a string that can be converted into an int, either directly as a decimal or as an hexadecimal
        /// prefixed with either 0x or 0X. The first 8 bits will give the CornerRadius rounding next to edge of control. The following bits will
        /// give rounding of a corner not adjoining an edge. Example: 0x305: inner rounding: 0x3, outer rounding: 0x5. Inner rounding of a
        /// corner not adjoining an edge currently not used and set to 0.</param>
        /// <param name="culture"></param>
        /// <returns></returns>

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value == null)
            {
                throw new System.ArgumentNullException();
            }

            if (!(value is IsCornerCtrlCorner))
            {
                throw new System.ArgumentException();
            }

            string             str = (string)parameter;
            IsCornerCtrlCorner ccc = (IsCornerCtrlCorner)value;
            int rounding;

            if (!int.TryParse(str, out rounding))
            {
                if (!(str[0] == '0' && (str[1] == 'x' || str[1] == 'X')))
                {
                    throw new System.ArgumentException();
                }

                if (!Int32.TryParse(str.Substring(2), System.Globalization.NumberStyles.HexNumber, null, out rounding))
                {
                    throw new System.ArgumentException();
                }
            }
            int NotEdgeRounding = rounding >> 8;
            int EdgeRounding    = rounding & 0x000000FF;

            return(new CornerRadius(ccc.TopLeft? EdgeRounding : NotEdgeRounding, ccc.TopRight? EdgeRounding : NotEdgeRounding,
                                    ccc.BottomRight? EdgeRounding : NotEdgeRounding, ccc.BottomLeft? EdgeRounding : NotEdgeRounding));
        }
        public override object ConvertTo(ITypeDescriptorContext typeDescriptorContext, System.Globalization.CultureInfo cultureInfo, object value, Type destinationType)
        {
            if (value == null)
            {
                throw new System.ArgumentNullException();
            }
            if (!(value is IsCornerCtrlCorner))
            {
                throw new System.ArgumentException();
            }

            IsCornerCtrlCorner ccc = (IsCornerCtrlCorner)(value);

            return(ccc.TopLeft.ToString() + "," + ccc.TopRight.ToString() + "," + ccc.BottomRight.ToString() + "," + ccc.BottomLeft.ToString());
        }