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Re: colormaps
- From: Russell Shaw <rjshaw iprimus com au>
- Cc: gtk-app-devel-list gnome org
- Subject: Re: colormaps
- Date: Fri, 17 Oct 2003 02:42:24 +1000
Olexiy Avramchenko wrote:
> Russell Shaw wrote:
>
>> Hi,
>>
>> In an expose-event callback of a gtk_drawing_area this always paints
>> a black region even tho i have it set for white:
...
> You should allocate colors before gdk_gc_set_*ground calls. You see the
> black color because of zero *pixel* field value in foreground/background
> structures. If you want to avoid color allocation - use
> gdk_gc_set_rgb_*_color functions:
> http://developer.gnome.org/doc/API/2.0/gdk/gdk-Graphics-Contexts.html#gdk-gc-set-rgb-fg-color
Thanks.
I never understand colormaps stuff until now: http://www.gtk.org/faq/#AEN834
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