MetroFramework.Controls.MetroScrollBar.ProcessDialogKey C# (CSharp) Method

        protected override bool ProcessDialogKey(Keys keyData)
        {
            var keyUp = Keys.Up;
            var keyDown = Keys.Down;

            if (Orientation == MetroScrollOrientation.Horizontal)
            {
                keyUp = Keys.Left;
                keyDown = Keys.Right;
            }

            if (keyData == keyUp)
            {
                Value -= smallChange;

                return true;
            }

            if (keyData == keyDown)
            {
                Value += smallChange;

                return true;
            }

            if (keyData == Keys.PageUp)
            {
                Value = GetValue(false, true);

                return true;
            }

            if (keyData == Keys.PageDown)
            {
                if (curValue + largeChange > maximum)
                {
                    Value = maximum;
                }
                else
                {
                    Value += largeChange;
                }

                return true;
            }

            if (keyData == Keys.Home)
            {
                Value = minimum;

                return true;
            }

            if (keyData == Keys.End)
            {
                Value = maximum;

                return true;
            }

            return base.ProcessDialogKey(keyData);
        }