Hi!

You could use packForget():

use Tk;

my $top = new MainWindow;

my $frame = $top->Frame();
$frame->Label(-text=>"Can you see me?")->pack();

$top->Button(-text=>"Hide",-command=>sub{$frame->packForget()})->pack(
+);
$top->Button(-text=>"Show",-command=>sub{$frame->pack()})->pack();

$frame->pack();

MainLoop();
[download]

packForget() removes the widget from the packing order. If you repack it later, it appears at the end of the packing order. You can get the pack configuration with @conf = $frame->packInfo(). The same is possible with grid.

Regards, mawe