assertion 'GTK_IS_WIDGET (widget)' failed: how to debug?

assertion 'GTK_IS_WIDGET (widget)' failed: how to debug?

[hreba]

Hi,

I have the following sequence in my program:

       obj:= last_builder.Get_Object(winname);
       if obj=null then raise findobject_Ex with
	builder_file & ": " & winname & " not found";
       end if;
       win.win := Gtk.Window.Gtk_Window (obj);
       win.win.Show_All;

When it is executed for the first time, it runs as expected. At the 
second time, the window win.win does not open and the following warning 
is printed out:

(sos:2905): Gtk-CRITICAL **: gtk_widget_show_all: assertion 
'GTK_IS_WIDGET (widget)' failed

For debugging I would like to execute the GTK macro G_OBJECT_TYPE_NAME 
but did not find anything similar in gtkada.

So how would you debug this?
-- 
Frank Hrebabetzky		+49 / 6355 / 989 5070

Re: assertion 'GTK_IS_WIDGET (widget)' failed: how to debug?

[Dmitry A. Kazakov]

On 2017-01-08 11:59, hreba wrote:

> For debugging I would like to execute the GTK macro G_OBJECT_TYPE_NAME
> but did not find anything similar in gtkada.

Get_Type + Type_Name

> So how would you debug this?

In my case there nothing to debug. I don't use GLADE.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de

Re: assertion 'GTK_IS_WIDGET (widget)' failed: how to debug?

[hreba]

On 01/08/2017 01:18 PM, Dmitry A. Kazakov wrote:
> On 2017-01-08 11:59, hreba wrote:
>
>> For debugging I would like to execute the GTK macro G_OBJECT_TYPE_NAME
>> but did not find anything similar in gtkada.
>
> Get_Type + Type_Name
>
>> So how would you debug this?
>
> In my case there nothing to debug. I don't use GLADE.
>

Calling these function I get a STORAGE_ERROR. Now I have at least an 
idea how to continue. Thanks for the hint.
-- 
Frank Hrebabetzky		+49 / 6355 / 989 5070