Use strict warnings and diagnostics or die :) 
#!/usr/bin/perl --
use strict;
use warnings;

use Tk;
my $mw = MainWindow->new;
my $filename;

# Create necessary widgets
my $f = $mw->Frame->pack( -side => 'top', -fill => 'x' );
$f->Entry( -textvariable => \$filename )->pack(
  -side   => 'left',
  -anchor => 'w',
  -fill   => 'x',
  -expand => 1
);
$f->Button( -text => "Exit", -command => sub { exit; } )
  ->pack( -side => 'right' );

my $t = $mw->Scrolled("Text")->pack(
  -side   => 'bottom',
  -fill   => 'both',
  -expand => 1,
);
$t->insert( end => join "\n", 1 .. 10 );
$t->focus;

$t->bind(
  '<<Selection>>',
  sub {

#~     warn @_;
    my ($t) = @_;

    $t->tagDelete('ssel');
    if ( my (@range) = $t->tagRanges('sel') ) {
      $t->tagAdd( ssel => @range );
      for my $opt (qw' foreground background ') {
        $t->tagConfigure( ssel => "-$opt" => $t->cget("select$opt") );
      }
    } ## end if ( my (@range) = $t->tagRanges...)
    return;
  }
);
$t->bind(
  '<FocusOut>',
  sub {
    my ($t) = @_;

#~     print $t->getSelected;
#~     use Data::Dumper; print Dumper([ $t->tagConfigure('ssel') ]);
#~     use Data::Dumper; print Dumper([ $t->tagNames ]);
#~     use Data::Dumper; print Dumper([ $t->tagRanges('sel') ]);
    return;

  }
);

MainLoop;

[download]

In reply to Re: If the text widget does not have the focus, the selection tag is not visible by Anonymous Monk
in thread If the text widget does not have the focus, the selection tag is not visible by balee

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