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-
-=head1 NAME
-
-Tk::MainWindow - Root widget of a widget tree
-
-=for pm Tk/MainWindow.pm
-
-=for category Creating and Configuring Widgets
-
-=head1 SYNOPSIS
-
- use Tk;
-
- my $mw = MainWindow->new( ... options ... );
-
- my $this = $mw->ThisWidget -> pack ;
- my $that = $mw->ThatWidget;
- ...
-
- MainLoop;
-
-=head1 DESCRIPTION
-
-Perl/Tk applications (which have windows associated with them) create
-one or more B<MainWindow>s which act as the containers and parents
-of the other widgets.
-
-B<Tk::MainWindow> is a special kind of L<Toplevel|Tk::Toplevel> widget. It is
-the root of a widget tree. Therefore C<$mw-E<gt>Parent> returns
-C<undef>.
-
-The default title of a MainWindow is the basename of the script
-(actually the Class name used for options lookup, i.e. with basename
-with inital caps) or 'Ptk' as the fallback value. If more than one MainWindow is created
-or several instances of the script are running at the same time the
-string C<" #n"> is appended where the number C<n> is set to get
-a unique value.
-
-Unlike the standard Tcl/Tk's wish, perl/Tk allows you to create
-several MainWindows. When the I<last> B<MainWindow> is destroyed
-the Tk eventloop exits (the eventloop is entered with the call of
-C<MainLoop>). Various resources (bindings, fonts, images, colors) are
-maintained or cached for each MainWindow, so each MainWindow consumes more
-resources than a Toplevel. However multiple MainWindows can make sense when
-the user can destroy them independently.
-
-=head1 METHODS
-
-You can apply all methods that a L<Toplevel|Tk::Toplevel> widget accepts.
-
-The method I<$w>-E<gt>B<MainWindow> applied to any widget will return the
-B<MainWindow> to which the widget belongs (the MainWindow belongs to itself).
-
-=head1 MISSING
-
-Documentation is incomplete.
-Here are I<some> missing items that should be explained in
-more detail:
-
-=over 4
-
-=item *
-
-The new mechanism for MainWindows is slightly different to
-other widgets.
-
-=item *
-
-There no explanation about what resources are bound
-to a MainWindow (e.g., ClassInit done per MainWindow)
-
-=item *
-
-Passing of command line options to override or augment
-arguments of the C<new> method (see L<Tk::CmdLine>).
-
-=back
-
-=head1 SEE ALSO
-
-L<Tk::Toplevel|Tk::Toplevel>
-L<Tk::CmdLine|Tk::CmdLine>
-
-=cut
-