in reply to Re: Basic questions of Tk programming
in thread Basic questions of Tk programming

Re^3: PERL Tk label(-textvariable))
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Re^3: Basic questions of Tk programming
by GrandFather (Saint) on Jan 24, 2025 at 03:04 UTC

    BAH. Either I didn't super search back far enough or SS dropped the ball.

    A pity OP didn't read as far as Annonymonk's reply.

    Optimising for fewest key strokes only makes sense transmitting to Pluto or beyond
[reply]

      ok this is interesting though, waitVisibility call hack

      #!/usr/bin/perl

use strict;
use warnings;
use Tk;

my $number = 1;
my $mw = MainWindow->new;

$mw->waitVisibility;

my $label = $mw->Label(-textvariable =>\$number)->pack();

$mw->repeat(1000, [sub{ ${$_[0]}++; $label->update; }, \ $number] );

$mw->waitVisibility;

      [download]

      displays an incrementing counter

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        > displays an incrementing counter

        When you append a MainLoop();, yes, it does.

        map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]
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