Doing things anonymously just brings alot of confusion, but it can be done. You can always get the widget's internal identifier with $widget->id;

#! /usr/bin/perl -w
use warnings;
use strict;
use Tk;

my $mw=MainWindow->new();

foreach(1..10)
    {
     my $e = $mw->Entry()->pack;
     $e->bind('<FocusIn>', sub { 
        print "@_\n"; 
        print "my entry is $_[0]\n";
            $_[0]->configure(-bg => 'hotpink');        
        } );     
        }
MainLoop;
[download]

but you are far better off storing everthing in hashes, because you can then get access to each entry from anywhere in the program.

#! /usr/bin/perl -w
use warnings;
use strict;
use Tk;

my $mw=MainWindow->new();

my %entries;

foreach(1..10)
    {
     $entries{$_}{'widget'} = $mw->Entry()->pack;
         $entries{$_}{'widget'}->bind('<FocusIn>', sub { 
             $_[0]->configure(-bg => 'hotpink');        
                 });
        }

$mw->after(5000,sub{

      foreach(2,4,6,8){
         $entries{$_}{'widget'}->configure(-bg => 'hotpink');
        }
     
     });
MainLoop;
[download]

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.