Re: [gtkmm] Segfault at changing button label

[MHL Schulze t-online de (Martin Schulze)]

Hello Jeffrey!

In the process of cleaning up my mail, I came around this problem
you reported on the gtkmm-list. Just in case you didn't notice:
The bug, whereever it was, has gone! You code works for me with
current cvs.

Regards,

  Martin


Am 04.07.2002 14:23 schrieb(en) Jeffrey Rush:
> Hello everyone,
>
> I'm still having troubles when trying to change the label of
> a togglebutton. I have following code segment:
> ...
> Gtk::ToggleButton *mytogglebutton = manage(new class 
> Gtk::ToggleButton("Test"));
> ...
> Gtk::Label *testlabel (dynamic_cast<Gtk::Label 
> *>(mytogglebutton->get_child()));
> if (testlabel != NULL)
>  testlabel->set("New label text");
>
> I get a segmentation fault (debugger 'pointing' to that get_child 
> routine).
> What am I doing wrong? Or is there a problem with dynamic_cast?
> Thanks for helping!
>
> Bye,
> Jeffrey Rush.
>
>
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