Re: Widget name is 0x0 after GtkWidget key-press-event

[dhk <dhkuhl optonline net>]

On 08/13/2010 07:56 AM, dhk wrote:
> The GtkWidget key-press-event signal doesn't seem to be filling in the
> name of the widget.  When I print the name in the debugger it's 0x0.
>
> I haven't run the program in a couple of months, but the last time I did
> everything worked.  Since then I've been keeping up on the upgrades
> (using Gentoo Linux with an amd64 processor).
>
> The program uses GtkBuilder.  There is an xml file with a treeview which
> has a key-press-event signal.  When the event occurs the callback is
> called and the parameters look right, but the name of the widget is 0x0.
>  Is this a bug from a recent release?  See below.
>
> Breakpoint 2, rxTvKeyPressEventCb (treeview=0x8f6120, event=0x945ca0,
> user_data=0x0) at possubs.c:1886
> 1886    gboolean add_row=FALSE;
> (gdb) p *treeview
> $27 = {object = {parent_instance = {g_type_instance = {g_class =
> 0x6d1520}, ref_count = 9, qdata = 0x988b20}, flags = 2166720},
>   private_flags = 1536, state = 0 '\000', saved_state = 0 '\000', name =
> 0x0, style = 0x930070, requisition = {width = 707, height = 191},
> allocation = {x = 7, y = 81, width = 768, height = 258}, window =
> 0x8c5a30, parent = 0x8c4350}
> (gdb) p *event
> $28 = {type = GDK_KEY_PRESS, window = 0x696c10, send_event = 0 '\000',
>   time = 4862537, state = 16, keyval = 65289, length = 0,
>   string = 0x9960b0 "", hardware_keycode = 23, group = 0 '\000',
>   is_modifier = 0}
> (gdb)
>
> Thanks,
>
> dhk
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One more thing.

I get my widgets as follows and all the name's are 0x0.

if(!gtk_builder_add_from_file(builder, filename, &error)) {
    g_warning("Couldn't load builder file: %s", error->message);
    g_error_free(error);
}

gtk_builder_connect_signals(builder, NULL);

w=GTK_WIDGET(gtk_builder_get_object(builder, "rxNb"));

All w->name's are 0x0.  This never use to be the case.  So this seems to
be the root of the problem.  Is this a bug in Gtk Builder?

Thanks,

dhk