[PD] hex color values

Krzysztof Czaja czaja at chopin.edu.pl
Sun Oct 17 12:23:12 CEST 2004


hi G_ M,

"winfo rgb ." is Tk's color name to rgb converter (for the root
window's colormap).  Since it fails if given an empty string, it
should either be wrapped in a catch clause, or in a test, like this:

query set cl [tk_chooseColor] .: if .($cl != "".) .(winfo rgb . $cl.)

The tot's output is then a list of three 16-bit intensities, so they
would probably need to be unpacked, and quantized with / 256 -> int.

Krzysztof

G_ M wrote:
...
> But as you can see in the example patch (attached) I need to convert the 
> hex color values to RGB values. Now I was wondering if there is any 
...
> #X msg 21 43 query tk_chooseColor;





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