I'm not sure how to make a Tk GUI that guides the user through several steps and redraws the window on user input (remove the buttons/text and show the buttons for the next step etc.)
What you are looking for is packForget and it's associate methods. You can pack a window with widgets, packforget all or some of the widgets so they are removed from the screen, reconfigure the widgets, then repack them. A simple example:
#!/usr/bin/perl
use warnings;
use strict;
use Tk;
my $top = new MainWindow;
my @counts = ('a'..'z');
my %cbuttons;
my $frame = $top->Frame()->pack();
setup_page();
$top->Button(-text => "packForget",
-command => sub{
my @w = $frame->packSlaves;
foreach (@w) { $_->packForget; }
})->pack();
$top->Button(-text => "repack",
-command => sub{ &setup_page })->pack();
$top->Button(-text => "Exit",
-command => sub {exit})->pack;
MainLoop;
sub setup_page{
for (1..4){
my $text = shift @counts;
$cbuttons{$_}{'cb'} = $frame->Checkbutton(
-text => $text,
-variable => \$cbuttons{$_}{'val'},
-command => \&SetState,
)->pack;
}
}
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