I've written up this example:
#!/usr/bin/perl
use strict;
use warnings;
use Tk;
my $mw = MainWindow->new;
$mw->geometry("300x300");
my $var =1;
my ($major, $other);
my @options = ('one', 'two', 'three', 'four', 'five');
my $topics1=$mw->Radiobutton(-text =>'Selection 1', -value => '0',
-variable => \$major, -command => sub {&do_smth('1')})->pack(
+);
my $topics2=$mw->Radiobutton(-text =>'Selection 2', -value => '1',
-variable => \$major, -command => sub {&do_smth('2')})->pack()
+;
my $topics3=$mw->Radiobutton(-text =>'Selection 3', -value => '3',
-variable => \$major, -command => sub {&do_smth('3')})->pack()
+;
if ($var eq 'more'){
my $options=$mw->Optionmenu( -options => [@options], -variable
+ => \$other,
-command => [sub {&do_more($major, $other);}])->pack()
+;
}
MainLoop;
sub do_smth{
my $selection = shift;
$var='more' unless ($selection == 2);
}
sub do_more{
my ($major, $other) = @_;
print "do this: $other while Selection was $major\n";
}
How do I make the extra Optionmenu to appear when choice 2 is called?