Hello!

I finally got around to attempting to learn how to use perl/tk.

I keep getting this error: 

no event type or button # or keysym at /usr/lib64/perl5/vendor_perl/5.
+8.8/x86_64-linux-thread-multi/Tk/Widget.pm line 1105.
 at ./ThreadFeed.pl line 16

[download]

I started out with the tutorial right here in the temple at http://perlmonks.org/?node_id=181977 and running the "sigeval.pl" I get that error at line 58 of sigeval.pl

I tried running some example code from another tutorial I found on google which produced that error on this line (line 16 of ThreadFeed.pl): my $txt = $textarea -> Text(-width=>40, -height=>10);

I recently rebuilt perl with the "ithreads" support and I also rebuilt the TK module and a few others just in case.

I've searched everywhere and found a couple mentions of this problem on google but no solutions/explanations. Can anybody shed some light on this?

Thanks!

Here is the "ThreadFeed.pl" file, It is just some example code from the tutorial I found, un-altered. 

#!/usr/bin/perl

use strict;
use warnings;
use Tk;

my $mw = new MainWindow; # Main Window

my $frm_name = $mw -> Frame();
my $lab = $frm_name -> Label(-text=>"Name:");
my $ent = $frm_name -> Entry();

my $but = $mw -> Button(-text=>"Push Me", -command =>\&push_button);

my $textarea = $mw -> Frame(); #Creating Another Frame
my $txt = $textarea -> Text(-width=>40, -height=>10);
my $srl_y = $textarea -> Scrollbar(-orient=>'v',-command=>[yview => $t
+xt]);
my $srl_x = $textarea -> Scrollbar(-orient=>'h',-command=>[xview => $t
+xt]);
$txt -> configure(-yscrollcommand=>['set', $srl_y], 
        -xscrollcommand=>['set',$srl_x]);

$lab -> grid(-row=>1,-column=>1);
$ent -> grid(-row=>1,-column=>2);
$frm_name -> grid(-row=>1,-column=>1,-columnspan=>2);

$but -> grid(-row=>4,-column=>1,-columnspan=>2);

$txt -> grid(-row=>1,-column=>1);
$srl_y -> grid(-row=>1,-column=>2,-sticky=>"ns");
$srl_x -> grid(-row=>2,-column=>1,-sticky=>"ew");
$textarea -> grid(-row=>5,-column=>1,-columnspan=>2);

MainLoop;

#This function will be executed when the button is pushed
sub push_button {
    my $name = $ent -> get();
    $txt -> insert('end',"Hello, $name.");
}

[download]

In reply to Perl/tk error I can't figure out by ttlgreen

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


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.