ScreenToGif.Windows.Recorder.SizeBox_MouseWheel C# (CSharp) Method

        private void SizeBox_MouseWheel(object sender, MouseWheelEventArgs e)
        {
            var textBox = sender as NumericTextBox;

            if (textBox == null) return;

            var step = Keyboard.Modifiers == (ModifierKeys.Shift | ModifierKeys.Control) ? 50 :
                Keyboard.Modifiers == ModifierKeys.Shift ? 10
                : Keyboard.Modifiers == ModifierKeys.Control ? 5 : 1;

            textBox.Value = e.Delta > 0 ? textBox.Value + step : textBox.Value - step;

            AdjustToSize();
        }