This program creates a yellow rectangle on a canvas. The rectangle is possible to move up, down, left, and right by the respective arrow keys. 
  
#!/usr/bin/perl -w            
use Tk;
use strict;  
      
my $mw = MainWindow->new;
my $c = $mw->Scrolled('Canvas',
-width => 200,
-height => 200,
-background =>'blue',
-scrollregion => [ 0, 0, 500, 500 ]
);

$c->pack(-expand => 1, -fill => 'both');
my $rect=$c->createRectangle(100, 100, 150, 150, -fill => 'yellow');  
+    
    
    $mw->bind('<KeyPress-Left>', sub{$c->move($rect, -5, 0);});
    $mw->bind('<KeyPress-Right>', sub{$c->move($rect, 5, 0);});
    $mw->bind('<KeyPress-Up>', sub{$c->move($rect, 0, -5);});
    $mw->bind('<KeyPress-Down>', sub{$c->move($rect, 0, 5);});
    
    my @coords_list = $c->coords($rect);

MainLoop;

[download]
Now I would like to be able to move the rectangle on the diagonal by pressing for example both up and right. To write: 
$mw->bind('<Right-KeyPress-Up>', sub{$c->move($rect, 5, -5);});

[download]
..is however not possible do you have any other suggestions how to bind two arrowkeys to an event?

In reply to Re^4: Tk: Binding Keys to events by tamaguchi
in thread Tk: Binding Keys to events by tamaguchi

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.