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From: hreba <f_hreba@yahoo.com.br>
Newsgroups: comp.lang.ada
Subject: Re: Where do I get my Cairo context from (in GTK3)?
Date: Tue, 26 Apr 2016 09:34:54 +0200
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Date: 2016-04-26T09:34:54+02:00
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On 04/26/2016 09:22 AM, briot.emmanuel@gmail.com wrote:
>> Is it Signal_Name in Connect? Recent GtkAda changes broke a lot of
>> things. Try a plain string literal instead.
>
> No they did not :-)
>
> In fact, the code can be much simplified now:
>
>     function Custom_Draw
>         (Self : access Gtk_Widget_Record'Class;
>          Cr    : Cairo.Cairo_Context) return Boolean is ...
>
>     Obj.On_Draw (Custom_Draw'Access);     --  defined in gtk-widget.ads
>
> No need for the marshallers any more in almost all cases. I recommend using
> the new On_* procedures defined in all the GtkAda packages, they might signal
> handling much easier, and safer too (since the compiler can check statically that
> the signal is valid for the given widget)
>

I would use On_* procedures if I didn't need user data. Until now no 
success.
-- 
Frank Hrebabetzky		+49 / 6355 / 989 5070