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

        private void UpdateControlsFromRGB()
        {
            Color rgbColor = Color.FromArgb(Convert.ToInt32(_rNumeric.Value), Convert.ToInt32(_gNumeric.Value), Convert.ToInt32(_bNumeric.Value));

            float hue = rgbColor.GetHue() / 360;

            _huePicker.HueChanged -= _huePicker_HueChanged;
            _huePicker.Hue = hue;
            _huePicker.HueChanged += _huePicker_HueChanged;
            _bsPicker.SetHue(hue);
            _bsPicker.BrightnessChanged -= _bsPicker_BrightnessChanged;
            _bsPicker.Brightness = rgbColor.GetBrightness();
            _bsPicker.BrightnessChanged += _bsPicker_BrightnessChanged;
            _bsPicker.SaturationChanged -= _bsPicker_SaturationChanged;
            _bsPicker.Saturation = rgbColor.GetSaturation();
            _bsPicker.SaturationChanged += _bsPicker_SaturationChanged;

            _hNumeric.ValueChanged -= _hNumeric_ValueChanged;
            _hNumeric.Value = Convert.ToInt32(rgbColor.GetHue());
            _hNumeric.ValueChanged += _hNumeric_ValueChanged;
            _sNumeric.ValueChanged -= _sNumeric_ValueChanged;
            _sNumeric.Value = Convert.ToInt32(rgbColor.GetSaturation() * 255);
            _sNumeric.ValueChanged += _sNumeric_ValueChanged;
            _lNumeric.ValueChanged -= _lNumeric_ValueChanged;
            _lNumeric.Value = Convert.ToInt32(rgbColor.GetBrightness() * 255);
            _lNumeric.ValueChanged += _lNumeric_ValueChanged;

            _rNumeric.ValueChanged -= _rNumeric_ValueChanged;
            _rNumeric.Value = rgbColor.R;
            _rNumeric.ValueChanged += _rNumeric_ValueChanged;
            _gNumeric.ValueChanged -= _gNumeric_ValueChanged;
            _gNumeric.Value = rgbColor.G;
            _gNumeric.ValueChanged += _gNumeric_ValueChanged;
            _bNumeric.ValueChanged -= _bNumeric_ValueChanged;
            _bNumeric.Value = rgbColor.B;
            _bNumeric.ValueChanged += _bNumeric_ValueChanged;

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