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From: Jacob Sparre Andersen <sparre@nbi.dk>
Newsgroups: comp.lang.ada
Subject: Re: change colors in GtkAda  (Linux/GNAT 3-13p-7)
Date: Fri, 23 Nov 2001 14:48:32 +0100
Organization: Centre for Chaos and Turbulence Studies, Niels Bohr Institute
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Date: 2001-11-23T14:48:32+01:00
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Frank:

> I have a little problem in GtkAda. I am trying to set a color before drawing
> a polygon,
> by rewriting a snippet of code from a Gtk textbook based in C:-)
> 
> However the polygons is drawed in black.
> Is anyone able to see from this snippet of code, if I have used some wrong
> approach somewhere?

[...]

>         Gdk.Color.Set_Rgb(My_Color, Gushort(10000), Gushort(0), Gushort(0));

What range is allowed for the colour components. Have you
considered something like:

   Gdk.Color.Set_Rgb(My_Color,
                     Gushort'Last, Gushort'First,
Gushort'First);

Assuming that "Gushort" is the type of the colour
components, this will most likely give you a pure bright
red.

Jacob
-- 
"Navier-Stokes-ligningen er som Biblen,
 det er randbetingelserne der bestemmer det hele."