Color Palette

The color palette was a little tricky, when using the Forms.ColorDiaplog control and custom colors.  The custom color list must be integer, but you can't use the color.toargb.  The work around is

dim intColor = Microsoft.VisualBasic.RGB(color.R, color.G,color.B).ToString 

for each color in the custom list.  I'm not sure if the list is fixed at 16 colors, but when I assign custom color to a list of 50 colors the dialog only displays 16 custom color.  In addition, the return color list is only 16 colors.

It helps to read up a bit on the Windows Color Model.

Another pitfall was attempting to turn the custom color integer list back into windows colors.  You will be tempted to use the obvious

c = Color.FromArgb(intarr(idx))
routine, but no, you must use

c = System.Drawing.ColorTranslator.FromOle(intarr(idx))