System.Windows.Forms.ColorPickerForm._aNumeric_ValueChanged C# (CSharp) Méthode

        private void _aNumeric_ValueChanged(object sender, EventArgs e)
        {
            _alphaPicker.AlphaChanged -= _alphaPicker_AlphaChanged;
            _alphaPicker.Alpha = (float)Convert.ToDouble(_aNumeric.Value / 255);
            _alphaPicker.AlphaChanged += _alphaPicker_AlphaChanged;

            _color = Color.FromArgb((int)(_alphaPicker.Alpha * 255), Color);
            ColorChanged(this, null);
        }