I think you are running into the "automatic keyboard repeat" of the X windows system. (Probably the same idea on MSWindows). There are a couple of places to set these rates in Linux. One is the Option AutoRepeat in Xf86config, and the other is in /etc/X11/xkb/compat/norepeat ( on Slackware) where you can specify keys you don't want to repeat automatically.

Both of these will make it harder to let others use your script so, you may be better off try to figure out a way of circumventing the repeat in your program.

Off the top of my head, I thought this might work, but it fails too, but I think the idea is the right way to go. Somehow set a flag that the key is down, and then NOT start the function if it is set. Or maybe work out some flag which gets set when the function is first called, and prevents it from being started twice?

This dosn't work, but crudely tries to demonstrate the idea. Maybe someone smarter knows the trick? 

#!/usr/bin/perl
use warnings;
use strict;
use Tk;

my $down = 0;
my $mw = MainWindow->new;
$mw->bind("<Key>",  sub { &pressed  } );
$mw->bind("<KeyRelease>",  sub { &released  } );
MainLoop;

sub pressed{
  if ($down == 1){return}
      else{print 'Key: ', ${Ev('K')}, " pressed\n"}

   $down = 1;
}


sub released{
  print 'Key: ', ${Ev('K')}, " released\n";
  $down = 0;
}

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In reply to Re: Tk bind KeyPress KeyRelease Problem by zentara
in thread Tk bind KeyPress KeyRelease Problem by Anonymous Monk

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