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From: hreba <f_hreba@yahoo.com.br>
Newsgroups: comp.lang.ada
Subject: Re: Inconsistency in gtkada (Override_Color)
Date: Mon, 23 Jan 2017 11:17:06 +0100
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Xref: news.eternal-september.org comp.lang.ada:33129
Date: 2017-01-23T11:17:06+01:00
List-Id: <comp.lang.ada>

On 01/22/2017 01:32 PM, Simon Wright wrote:
> hreba <f_hreba@yahoo.com.br> writes:
>
>> I found an inconsistency in Gtkada 2015.
>>
>> A procedure specification there is
>>
>>    procedure Override_Color
>>       (Widget : not null access Gtk_Widget_Record;
>>        State  : Gtk.Enums.Gtk_State_Flags;
>>        Color  : Gdk.RGBA.Gdk_RGBA);
>>
>> The last comment line reads:
>> "Since: gtk+ 3.0 "state": the state for which to set the color
>> "color": the color to assign, or null to undo the effect of previous
>> calls to Gtk.Widget.Override_Color".
>>
>> This is a copy from GTK where the color parameter is indeed a pointer,
>> and not a record as Gdk.RGBA.Gdk_RGBA. Several other
>> override-procedures show the same inconsistency between specification
>> and description.
>>
>> Any workaround for resetting the color?
>
> The same inconsistency is present in the Github version[1]. I suppose an
> issue should be raised.
>
> Looks to me as though you are supposed to use Gdk.RGBA.Null_RGBA (which
> gets translated internally into the needed null).
>
> There are also White_RGBA, Black_RGBA.
>
> [1] https://github.com/AdaCore/gtkada
>

Thanks for the hint.

Should I do something about raising an issue?
-- 
Frank Hrebabetzky		+49 / 6355 / 989 5070