[Tkinter-discuss] Custom Colors in tkColorChooser dialog

[Guilherme Polo]

On Tue, Nov 11, 2008 at 12:11 PM,  <david.giesen at kodak.com> wrote:
> Hi -
>
> When invoking the tkColorChooser.askcolor() dialog on Windows, a window
> pops up that shows on the lefthand side a grid of basic color patches and
> two rows of custom color patches.
>
> The custom color patches by default seem to simply be a set of reds and
> purples.  The user can modify these, but the modifications only last for
> the duration of the program - the next time it starts, the colors are back
> to the defaults.  Is there any way to modify this set of custom colors via
> code?

tkColorChooser is platform specific, on windows it actually uses
ColorChooser (check msdn for that) to display the color picker dialog.
On unix != macosx you will get a generic one which doesn't even have a
palette.
Even if you want to target only Windows, I don't think you can add a
hook (be it through pywin32, ctypes, ..) into windows' colorchooser to
load a custom palette. It is possible that there are better functions
for this in the windows api (which then could be suggested in the tk
bug tracker to replace or use if available instead of ColorChooser),
or maybe it is even possible to add a hook in ColorChooser somehow but
I don't know how offhand.

Now, the less hacky option is to create a widget yourself. tk comes
with a demo called tcolor which already supports rgb, cmy and hsb, so
all you have to do is put a "pallete bar" on it (and convert it to
python =) ) and have total control over it.

> I'd like to present the users with a custom template for a program
> I'm writing.
>
> Thanks!
>
> Dave
>
> David J. Giesen | Research Scientist | FPEG US Display OLED Materials R+D
> |
> Eastman Kodak Company | 2/83/KRL MC02216 | Rochester, NY 14650 |
> david.giesen at kodak.com | 1-585-588-0480 Office |
> www.kodak.com
>


-- 
-- Guilherme H. Polo Goncalves