Tk::MainWindow responds to all options that Tk::Toplevel does: i.e. -width, -height etc: 

#!/usr/bin/perl -w

use Tk;

my $mw = MainWindow->new( -width => '100', -height => '100' );

MainLoop;

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I can't test this, by the way - my windowmanager thankfully doesn't let applications decide their window size.

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re: define size to MainWindow (TK) by Joost
in thread define size to MainWindow (TK) by sashac88

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