System.IO.Win32File.GetAccess C# (CSharp) Method

        private static uint GetAccess(FileAccess access)
        {
            uint uaccess = 0;
            switch (access)
            {
                case FileAccess.Read:
                    uaccess = GENERIC_READ;
                    break;
                case FileAccess.ReadWrite:
                    uaccess = GENERIC_READ | GENERIC_WRITE;
                    break;
                case FileAccess.Write:
                    uaccess = GENERIC_WRITE;
                    break;
            }
            return uaccess;
        }