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Perl: the Markov chain saw

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You're changing focus and triggering focus events ... you're also popping up popups, popups are annoying :) its better to validate on key without popups, popup at most only once on submit, on all others ring the bell and flash invalid

#!/usr/bin/perl -- use strict; use warnings; use Tk; my $mw = tkinit; my $name = $mw->Entry( -validatecommand => \&nodigits, -validate => ' +key',)->pack; $name->focus; #~ $mw->WidgetDump; use Tk::WidgetDump; $mw->MainLoop; sub nodigits { my( $newstring, $difference, $oldstring, $index, $insertOrDelete ) + = @_; my $entry = $Tk::event->W; if( $newstring =~ m/\d/ ){ $entry->bell; $entry->configure( -bg => 'red' ); $entry->after( 300, sub { $entry->configure( -bg => 'white' ) +} ); return undef; } else { $entry->configure( -bg => 'white' ); return 1; } }

In reply to Re: can'yt figure out whats wrong in this code? by Anonymous Monk
in thread can'yt figure out whats wrong in this code? by yedukondalu

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