Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Dear monks

I am trying to modify my script below and add a Tk Checkbox to my pop-up menu. Unfortunately I am not able to do it. Somebody can help?

#use strict;
use warnings;
use Tk;
my $mw = tkinit();
my $CkAutomaticBackUp;
my $b1 = $mw->Button(
    -text => "Hello",
);
$b1->grid(-row => 0, -column => 1,);
Popup($mw, $b1);
$mw->MainLoop;

    
sub Popup{
  my ($mw, $obj) = @_;
  my $menu = $mw->Menu(-tearoff=>0, -menuitems=>[
    [command=>"Something", -command=>[sub {print "Hello"}, $obj,]],
    #[checkbutton=>(-label =>"Prompt for automatic backup",-variable=>
+\$CkAutomaticBackUp,-onvalue=>'1', -offvalue=>'0', -compound => 'left
+'), -command=>[sub {print "$CkAutomaticBackUp"}, $obj,]],
    ]);
    $obj->menu($menu);
    $obj->bind('<ButtonPress>', ['PostPopupMenu', Ev('X'), Ev('Y'), ])
+;
    return $obj;
}

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Re: Add Tk checkbox to popup menu
by choroba (Cardinal) on Jan 31, 2018 at 18:49 UTC
    You were pretty close. See the widget demo included in the Tk distribution for usage examples. 
      my $menu = $mw->Menu( -tearoff => 0,
                        -menuitems => [
                            [ command  => "Something",
                              -command => [ sub { print 'Hello' }, $ob
+j ] ],
                            [ checkbutton => "Prompt for automatic bac
+kup",
                              -variable   => \$CkAutomaticBackUp,
                              -onvalue    => '1',
                              -offvalue   => '0',
                              -compound   => 'left',
                              -command    => [ sub { print "$CkAutomat
+icBackUp" }, $obj ]
                            ],
                        ]);

    [download]
    ($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

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      Perfect, thank you!

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