I would use local for tweaking the environment variable:


use strict;
use Tk;

my @Displays = qw"node1:0 node2:0";

my $top = MainWindow->new();
my %top;

foreach (@Displays) {
  local $ENV{'DISPLAY'} = $_;

  if (eval {$top{$_} = MainWindow->new()}) {
    print "MainWindow opened on $_\n";
  } else {
    print "MainWindow failed to open on $_\n";
    $top{$_} = 0;
  }
}

MainLoop;

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(Missquoting Janis Joplin)

In reply to Re: Tk - is MainWindow robust? by rinceWind
in thread Tk - is MainWindow robust? by matt.tovey

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