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in reply to Toplevel widget

Greetings!!

The
$toplevel->state;
method returns the state of the toplevel widget. The values are 'normal', 'icon', 'iconic', or 'withdrawn'.

I found the above information in perldoc Tk::wm
Both the $toplevel->witdraw; and the $toplevel->state; methods are described in the documentation.

-Daruma

Update: indicated where I found the information... Thanks, Zaxo!