my $maincanvas = $mw-> Canvas(-highlightthickness => 0);
my $maincanvasi = $mw-> Photo(-file => "$img.jpg");
$maincanvas->createImage(0,0, -image => $maincanvasi, -anchor => 'nw');
####
my $subcanvas1 = $maincanvas-> Canvas(-width => 64, -height => 54, -highlightthickness => 0);
my $subcanvas1i = $maincanvas->Photo(-file => "$button1.jpg");
$subcanvas1-> form(-left => '420', -top => '444');
$subcanvas1-> createImage(0, 0, -image => $subcanvas1i, -anchor => 'nw');
##
##
$subcanvas1-> Tk::bind('' => sub { dostuff } );
##
##
foreach (@canvasbuttons) { $_->delete('all'); $_->formForget; }
##
##
Tk::Error: Window "" is not managed by the tixForm manager...
...
(command bound to event)