For a direct contrast you can invert the RGB. This works for most cases
except 50% gray.
Color.FromArgb(255-myColor.R, 255-myColor.G,255-myColor.B)
You can also detect the brightness and pick a suitable contrasting colour
that way. Alternatively you can obtain the hue and use the opposite hue.
There is an article on HSB usage in the GDI+ FAQ.
--
Bob Powell [MVP]
Visual C#, System.Drawing
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"Joe" <J_no_spam@_no_spam_Fishinbrain.com> wrote in message
news:uP****************@TK2MSFTNGP09.phx.gbl...
I don't know if contrasting is really the right word but here's what I
mean.
Take a normal Listbox (or similar) when the test is selected the text
turns
blue. If the background is blue the text turns white. This happens in
different combinations of forecolor - backcolor combinations.
How can I determine what is the right color (contrasting color) to use?