Thanks everyone for all the Tk help.

I'm trying to add tabs to a notebook dynamically while the program is running, after MainLoop has started.

# silly toy example
use strict;

use Tk;
use Tk::NoteBook;

my $i=0;
my $top = MainWindow->new( -title => 'client', );
my $nb = $top->NoteBook();
$top->repeat(200, \&add_tab);

&add_tab() for 1 .. 20;

MainLoop();

sub add_tab {
    exit if $i>50;
    $i++;
    print "adding  tab $i\n";
    my $tab = $nb->add($i, -label => $i );
    $nb->pack;
}
[download]

Here, the first 20 tabs are added fine, as MainLoop hasn't started yet, but the later tabs don't show up.

Without destroying and rebuilding the entire top window, how can I add a tab to a notebook after MainLoop has started?

Thanks!

water

UPDATE:
Thought I could solve the problem by preallocating a set of tabs for later use. Sure, but after MainLoop has started, if I change the options on the preallocated tab, those changes don't seem to be visible. So this preallocation scheme (as least as I implemented it) does not work. Suggestions, wise monks?

Considered: kelan dup of 398068
Unconsidered: ysth enough keep votes, positive rep - Keep/Edit/Delete: 2/2/20