Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical

Re: Clearing and entry-box in TK

by strat (Canon)
on Sep 23, 2006 at 10:08 UTC ( #574497=note: print w/replies, xml ) Need Help??

in reply to Clearing an entry-box in TK

You could work with -textvariable (instead of -text) which binds a reference to a variable to the content of the entry, e.g

use vars qw($InputText); $InputText = ""; ... my $input = $mw->Entry (-textvariable => \$InputText)->form; ... # my $guess = int ($input->get); my $guess = int( $InputText ); $InputText = ""; # empty it

Another Idea: If you just want to allow integer values to be entered, it often is a good way not to allow other input than numbers which makes errorchecking easier. Maybe Tk::NumEntry could be interesting for you, or my Tk::EntryCheck, e.g.

my $input = $mw->EntryCheck( -textvariable => \$InputText, -pattern => qr~\d~, )->form;

Best regards,
perl -e "s>>*F>e=>y)\*martinF)stronat)=>print,print v8."

Replies are listed 'Best First'.
Re^2: Clearing and entry-box in TK
by Panda (Scribe) on Sep 24, 2006 at 01:57 UTC
    Thanks strat, I'll get GrandFather to download Tk::EntryCheck so I can try the game using it as well.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://574497]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (3)
As of 2018-05-24 18:48 GMT
Find Nodes?
    Voting Booth?