Thanks.
O'Reilly writes that "packForget makes it look like the widget disappears. The widget is not destroyed, but it is no longer managed by pack. The widget is removed from the packing order, so if it were repacked later, it would appear at the end of the packing order."
Based on that, I assume that packForget comes into play when one wants to "hide" a widget that may be needed later on. When you want to get rid of a widget, frame or window once and for all on a buttonpress, you'd add $thingie-> 'destroy' to the command sub of the button... Right?

In reply to Re^2: Perl/Tk code structure by elef
in thread Perl/Tk code structure by elef

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