Re: Test for whether a widget has children

[Marius Feraru <altblue gmail com>]

On Fri, Jul 23, 2010 at 04:05, Mike Martin <mike redtux org uk> wrote:
> Does such a thing exist in Gtk? eg: if I do something like
>
> foreach my $widget ($vbox->get_children){
> print $widget
> }
> It will fail if there are any widgets that dont have children such as
> a label or a GTkEntry

Do you in fact ask how to determine if an object has a method called
"get_children"?
Then the answer is "can".

if ($vbox->can('get_children') {
    for my $widget ($vbox->get_children) {
        ...
    }
}

> I've googled and searched API docs but cant see anything
Not Gtk, just Perl's OOP.