[C#]16bit RGB Color

//Hex -> RGB

// ex) 0x1234 -> 16bit RGB 색상표현

 

//Dec -> RGB

// ex) 12345 -> 16bit RGB 색상표현

 

public void setRGBText(string sRGBText)
        {
            string sRGB;
            int iRGB;
            if (sRGBText.Length < 5) // Hex값 일 경우
            {
                sRGB = sRGBText.PadLeft(4, '0');                
                iRGB = int.Parse(sRGB, System.Globalization.NumberStyles.HexNumber);  // Hex to Int
                sRGB = Convert.ToString(iRGB, 2).PadLeft(16, '0');
            }
            else // Dec값 일 경우
            {
                iRGB = Convert.ToInt32(sRGBText);  // Dec to Int
                sRGB = Convert.ToString(iRGB, 2).PadLeft(16, '0');
            }                        

            if (sRGB.Length == 16)
            {
                string sRed = sRGB.Substring(0, 5);
                string sGreen = sRGB.Substring(5, 6);
                string sBlue = sRGB.Substring(11, 5);

                byte bRed = Convert.ToByte(sRed, 2);
                byte bGreen = Convert.ToByte(sGreen, 2);
                byte bBlue = Convert.ToByte(sBlue, 2);

                int iRed = bRed * 8;
                int iGreen = bGreen * 4;
                int iBlue = bBlue * 8;

                //int iDec = iRed | iGreen | iBlue;
                txtHexValue.Text = Convert.ToString(iRGB, 16).PadLeft(4, '0');
                //txtHexValue.Text = iRGB.ToString().PadLeft(4, '0');
                txtDecValue.Text = iRGB.ToString().PadLeft(5, '0');

                trackBarRed.Value = iRed;
                trackBarGreen.Value = iGreen;
                trackBarBlue.Value = iBlue;

                labelR.Text = iRed.ToString();
                labelG.Text = iGreen.ToString();
                labelB.Text = iBlue.ToString();

                RGBcolorDialog.BackColor = Color.FromArgb(iRed, iGreen, iBlue);
            }            

        }