ModernWPF.Internal.LegacyBorderManager.ClearUndefined C# (CSharp) Method

        static SetWindowPosOptions ClearUndefined(SetWindowPosOptions input)
        {
            SetWindowPosOptions retVal = 0;
            foreach (SetWindowPosOptions val in Enum.GetValues(typeof(SetWindowPosOptions)))
            {
                if ((input & val) == val)
                {
                    retVal |= val;
                }
            }
            return retVal;
        }