Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

Re: Tk "hello, world", part 2

by Rhose (Priest)
on Jan 29, 2004 at 20:46 UTC ( #325032=note: print w/replies, xml ) Need Help??


in reply to Tk "hello, world", part 2

You could also use -textvariable with your Entry widget.
#!/usr/bin/perl use strict; use warnings; use Tk; my $name; my $main = MainWindow->new(); $main->Label(-text=>"Company Name:")->pack(); my $entry = $main->Entry(-textvariable => \$name)->pack; $entry->focus(); $main->Button(-text=>"Continue", -command=> sub {$main->destroy;})->pa +ck(); $main->Button(-text=>"Cancel", -command => sub {exit})->pack(); $main->bind('<Return>' => sub {$main->destroy}); MainLoop; die "$name";

Update
Oops... I forgot to put in the reason for the first code not working -- the problem is that the "$name = $entry->get();" line is being executed before there is a value in the Entry widget (You can't use the interface before the MainLoop;)

Here is a "fix" for the first example:

#!/usr/bin/perl use strict; use warnings; use Tk; my $name; my $main = MainWindow->new(); $main->Label(-text=>"Company Name:")->pack(); my $entry = $main->Entry()->pack; $entry->focus(); $main->Button(-text=>"Continue", -command=> sub {$name = $entry->get() +;$main->destroy;})->pack(); $main->Button(-text=>"Cancel", -command => sub {exit})->pack(); $main->bind('<Return>' => sub {$main->destroy}); MainLoop; die "$name";

Update 2
Yeah, what arden said. *Smiles*

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://325032]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others rifling through the Monastery: (4)
As of 2019-07-23 00:29 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    If you were the first to set foot on the Moon, what would be your epigram?






    Results (22 votes). Check out past polls.

    Notices?