/// <summary>
        /// Handles a |speed| command.
        /// </summary>
        private Boolean HandleSpeedCommand(TextLayoutCustomCommand cmd)
        {
            charsPerSecond = (cmd.Value == 0) ? DefaultSpeed : cmd.Value;
            charsVisible   = (Int32)charsVisible;

            return(false);
        }
        /// <summary>
        /// Handles a |delay| command.
        /// </summary>
        private Boolean HandleDelayCommand(TextLayoutCustomCommand cmd)
        {
            delay        = (cmd.Value == 0) ? DefaultDelay : cmd.Value;
            charsVisible = (Int32)charsVisible;

            return(false);
        }