Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Yeah, that was just lazyness, sorry. You can substitute the $le by $_[0]->parent.

You can see what is inside $_[0] by checking @_:

#!/perl use strict; use warnings FATAL => qw(all); use Tk; use Tk::LabEntry; use Data::Dumper qw/Dumper/; use List::Util qw(first); use Scalar::Util qw(looks_like_number); my $mw = MainWindow->new(); $mw->title("Test"); my $test = 8; my $width = 250; my $length = 125; $mw->minsize($width, $length); my $FONT = $mw->fontCreate(-family => 'verdana', -size => 14, -weight => 'normal'); my $le = $mw->LabEntry(-label => 'Value', -labelPack => [qw/-side left -anchor w/], -labelFont => '9x15bold', -font => $FONT, -relief => 'ridge', -textvariable => \$test, -width => 2, )->pack(); $le->bind('<Key>' => sub { labelCheck($_[0]);}); MainLoop; sub labelCheck { print Dumper \@_; my $x = $_[0]->get(); if ( !(looks_like_number($x)) or ($x < 0) ) { $_[0]->delete(0, 'end'); my $label = $_[0]->parent->Subwidget('label'); $label->configure( -background => 'red'); # $_[0]->configure( -labelBackground => 'red'); } else { $_[0]->configure( -background => '#f0f0f0',); # $_[0]->configure( -labelBackground => '#f0f0f0'); do_something(); } return 1; } sub do_something { print $test, $/; }

For me, this returned:

$VAR1 = [ bless( { '_TkValue_' => '.labentry.entry', '_XEvent_' => bless( do{\(my $o = ' $  +  T  t  A  a  A ( \ +' a "Ԍ')}, 'XEvent' ) }, 'Tk::Entry' ) ];

It's a Tk::Entry inside a LabEntry (cf. .labentry.entry).

In reply to Re^3: Tk::LabEntry - how to reach the configuration of label via callback? by capfan
in thread Tk::LabEntry - how to reach the configuration of label via callback? by vagabonding electron

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (5)
As of 2023-03-30 14:43 GMT
Find Nodes?
    Voting Booth?
    Which type of climate do you prefer to live in?

    Results (74 votes). Check out past polls.