Code behind Color List

Some users have requested the code I used to generate the Any Colur you like as long as its .NET post last week. The following is the c# function I used to extract the list of colours.

void ShowColours()
{
    // Get an array of all known colours
    KnownColor[] colours = (KnownColor[])Enum.GetValues(typeof(KnownColor));
    for (int i = 0; i < colours.Length; i++)
    {
        Color c = Color.FromName(colours[i].ToString());

        if (c.IsSystemColor)
        {
            Console.WriteLine(
                string.Format(
                "System Colour : {0} [Hex #{1}] [RGB {2}/{3}/{4}]",
                    c.Name, c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"),
                    BitConverter.ToInt16(new byte[2] { c.R, byte.MinValue, }, 0),
                    BitConverter.ToInt16(new byte[2] { c.G, byte.MinValue, }, 0),
                    BitConverter.ToInt16(new byte[2] { c.B, byte.MinValue, }, 0)
                    ));
        }
        else
        {
            Console.WriteLine(
                string.Format(
                "Predefined Colour : {0} [Hex #{1}] [RGB {2}/{3}/{4}]",
                    c.Name, c.R.ToString("X2") + c.G.ToString("X2") + c.B.ToString("X2"),
                    BitConverter.ToInt16(new byte[2] { c.R, byte.MinValue, }, 0),
                    BitConverter.ToInt16(new byte[2] { c.G, byte.MinValue, }, 0),
                    BitConverter.ToInt16(new byte[2] { c.B, byte.MinValue, }, 0)
                    ));
        }
    }

The following Extracts a list of all System.Drawing.KnownColor Enumeration values and assigns them to an array.

KnownColor[] colours = (KnownColor[])Enum.GetValues(typeof(KnownColor));

The following line converts the byte value for the colour, and converts it to a Hexadecimal value.

c.R.ToString("X2")

Converts a byte value to an Int16 value. The colour is represented by a single byte but the functon requires two bytes, so we add a second byte with value as byte.MinValue. The result is a value 0-255 inclusive representing the colour value.

BitConverter.ToInt16(new byte[2] { c.R, byte.MinValue, }, 0)

Hope this code helps!

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