OpenTween.TweenMain.ApplyListViewIconSize C# (CSharp) Method

        private void ApplyListViewIconSize(MyCommon.IconSizes iconSz)
        {
            // アイコンサイズの再設定
            _iconCol = false;
            switch (iconSz)
            {
                case MyCommon.IconSizes.IconNone:
                    _iconSz = 0;
                    break;
                case MyCommon.IconSizes.Icon16:
                    _iconSz = 16;
                    break;
                case MyCommon.IconSizes.Icon24:
                    _iconSz = 26;
                    break;
                case MyCommon.IconSizes.Icon48:
                    _iconSz = 48;
                    break;
                case MyCommon.IconSizes.Icon48_2:
                    _iconSz = 48;
                    _iconCol = true;
                    break;
            }

            if (_iconSz > 0)
            {
                // ディスプレイの DPI 設定を考慮したサイズを設定する
                _listViewImageList.ImageSize = new Size(
                    1,
                    (int)Math.Ceiling(this._iconSz * this.CurrentScaleFactor.Height));
            }
            else
            {
                _listViewImageList.ImageSize = new Size(1, 1);
            }
        }