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#!/usr/local/bin/perl -w
use strict;
use Tk;
my $mw = MainWindow->new;
my $pick = $mw->Label(-text => 'Pick', -relief => 'raised')->pack;
$mw->Button(-text => 'Quit', -command => [destroy => $mw])->pack;
$pick->bind('<1>', \&PickStart);
$pick->bind('<ButtonRelease-1>', [\&PickWin,Ev('X'),Ev('Y')]);
MainLoop;
sub PickStart
{
my $w = shift;
$w->grabGlobal;
$w->configure(-cursor => 'hand2', -relief => 'sunken');
}
sub PickWin
{
my ($w,$x,$y) = @_;
$w->grabRelease;
$w->configure(-cursor => undef, -relief => 'raised');
my $id = $w->PointToWindow($x,$y);
my $depth = 0;
while ($id)
{
my @props = $w->property(list => $id);
printf("%s%08X %s\n",' ' x $depth,$id,join(' ',@props));
$depth++;
$id = $w->PointToWindow($x,$y,$id);
}
}
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