Re^2: Tk vs Tkx for -validatecommand

[shortyfw06]

I tried the following which includes the callback. It isn't working properly. Does anyone see the problem? Thanks!

#! perl
use strict;
use warnings;
use Tkx;

my $value;
my $mw  = Tkx::widget->new(".");
my $ent = $mw->new_entry(-textvariable => \$value,-validate => 'key')-
+>g_pack();
$ent->configure(
                -validatecommand => [sub { $_[0] =~ /^(?:|-|\d+|-\d+)$
+/ }, Tkx::Ev('%P'), $ent],
        -invalidcommand  => \&lam_num_error);

my $print_button = $mw->new_button(-text    => "Print",
                               -command => \&printx,
                               -font    => "ansi 10 bold")->g_pack();

my $reset_frm = $mw->new_frame();
$reset_frm->g_pack(-fill => 'both');
my $reset_button = $reset_frm->new_button(-text    => "Reset",
                                      -command => \&do_reset,
                                      -font    => "ansi 10 bold")->g_p
+ack();
Tkx::MainLoop();

sub printx
{
    print $value unless $value eq '-';
}

sub do_reset
{
    $ent->delete(0, 'end');
}

sub lam_num_error
{
    Tkx::tk___mmessageBox(-message => "The input must be an integer.")
+;
}

__END__

[Anonymous Monk]

:) You're still stuck in your Tk.pm-isms

If you run your program you'll get a nice error

Can't call method "configure" without a package or object reference

g_pack doesn't return an object

[shortyfw06]

Yes, I'm having such a hard time with this... I got the error but it points to line 10 which doesn't have a g_pack command? I don't understand what the problem is. Does this mean the g_pack for the entry didn't work?

[Anonymous Monk]

:D:D:D:D:D:D:D:D:D

http://docs.activestate.com/activetcl/8.5/tcl/TkCmd/pack.htm

You're calling configure on $ent but $ent is not an object

$ent is assigned the return value from g_pack

g_pack doesn't return an object

the return value of the g_pack method is not an object

g_pack returned something which is not an object

g_pack returned the empty string ""

"" the empty string does not have a configure method

"" the empty string is not an object

you can't call methods on the empty string ""

:D:D:D:D:D:D:D:D:D